Hey Robert, here's the purge tower solution: "Print Settings > Multiple Extruders > Wipe tower extruder"

@giaxxone

3 ай бұрын

Thanks for this! I’ve been hearing people say that you can set one filament as the purge tower shell, but no one says how.

@alexandergregori3172

3 ай бұрын

I found the same solution with the wipe tower, but I hope for the multiple towers in the future. I had no problems when the outer wipe tower is PLA or PETG, but I think it depends on the filament. I had good prints with PETG as support when I use PETG that needs only 60C bed temp like extrudr PETG. I print it with max 55mm/s and a low temp and overhangs works great. But it took me some time to get a good and stable result. I still have more problems with PLA as support. All PETG I tryed won't stick on the PLA with Z contact 0.

@Benctmoi

3 ай бұрын

I use the set outside perimeter with a set filament, usually petg outside and pla in. And it works well for me

Having multiple wipe towers actually sounds like a pretty good solution for "incompatible" materials, though it should probably have the "no sparse layers" feature enabled, otherwise every tool assigned to a tower would have to be picked up to keep the height of all the towers the same as the print. Another solution that might work depending on the filaments used is to set a specific tool as the "wipe tower extruder", which means the wipe tower will have an exterior shell made of the material from that tool. That way you have to rely a little less on the layer bonding between different materials.

I use the gallery to add cubes to the build volume for each nozzle. I run a slice to see where the highest material layer will be used in my project and make its cube that high. In some cases, it uses less material than the autogenous tower but makes sure the nozzle is clear and primed.

Finally someone that gets and tests what this 3500€+ printer is made for! I don’t need 5 color PLA dolls and I don’t net 36cm dragon busts. I want to print functional parts with multiple material features! And also filaments that need an enclosure. Once we have a good enclosure and better filament support and a software, that really enables muti material mixes (with material interlocking features built into the slicer and better priming / wiping solutions), we can call it a new era of 3D printing.

@woodwaker1

3 ай бұрын

Take a look at the SUMO enclosure. Not perfect, but it works well. I can keep my internal temp at 100F with just the bed heat.

So glad to hear I am not the only one struggling so much with a PLA/PETG support combo! As PaulStevensonPinball mentioned, using "Print Settings > Multiple Extruders > Wipe tower extruder" does work to an extent, I still get some gliding issues and bubbles and ultimately failed prints. Multiple towers does make sense and is a great idea for this! My theory was in slicer, allow us to exclude specific extruders from a wipe tower. So if using PETG for a support on PLA like I do, where I dont care about the finish of the support, just remove the PETG extruder from the wipe tower altogether and let it only build on the support, being the same material. Maybe Prusa employees are lurking on this video like your 0.6 vs 0.4 nozzle and we can get some quick additions to the slicer!

I used PLA in some prints and came to the solution to design my own support structures in CAD. This worked better than using the supports from Prusa Slicer. Just add a 0.1mm gap between the PETG. I used Prusament PETG and Kingroon PLA (cheap appr. 7$/kg). Works really good.

@MartinKoistinen

3 ай бұрын

I do the same! While it is true that the wipe tower has issues, the resulting parts come out fantastic. I use 0 distance between the support object and the other object though. To help PLA stick, I slow the print speed way down for the first couple layers from where the support starts.

@RobertCowanDIY

3 ай бұрын

Yeah, I think this is probably the way to go.

@RobertCowanDIY

3 ай бұрын

Huh, interesting. When you say 'stick', are you getting PETG and PLA to somewhat stick together? For me it just glides over the top like oil and water.

@MartinKoistinen

3 ай бұрын

@@RobertCowanDIY By "stick" I mean that the PLA is laid down onto the PETG, it doesn't pull completely off as the nozzle moves on. It isn't as nicely as I liked though. I did find that when the part cooling is facing the interface, it helps, so I spent some time printing in different orientations to get the best results due to air flow. Also, when the part is done (and cool), it does take a bit of effort to separate the two, so perhaps cooling is the important part here. Regardless, the part definitely comes out better than NOT using PETG to support the PLA. In my case, the part is effectively a cylinder on its side like a tipped over soda can. Love your videos, btw. Keep'em comin!

Interesting project. Hard to crack (or easy to brake) Thanks for you showing the tour of the possibilityes of this printer 🙂

Prusaalicer is capable, but the things you said that were missing sound like they could be pretty easily programmable. Since XL is pretty new, I think these features will be added soon

Would it be possible to add just a simple block as your custom wipe tower, then force the slicer to always print this first? Just thinking loud, I have no experience with this so far, but excited to get the multitool printer soon

@logicalfundy

3 ай бұрын

You have to put the block in a certain corner of the printer, as it uses an algorithm to determine what prints first. I forget which corner though. But yes, the idea of making your own prime tower is solid.

8:58 In theory this would allow for (conventional, ie non pyrolysis then refining craziness) recycling since the materials would still be "sorted" which would be another benefit!

@RobertCowanDIY

3 ай бұрын

Correct! this is another benefit of multiple wipe towers.

Interesting project. I would suggest moving away from grid infill on any project though as it is one of the worst infills for many reasons. Gyroid or any of the 3D infills are usually your best bet.

@RobertCowanDIY

2 ай бұрын

Yeah, I honestly always forget to change it. I hate how grid became the default again...

This is extremely interesting! Thank you!😎👍🏻👍🏻

@RobertCowanDIY

3 ай бұрын

Glad you enjoyed it

@JockeSelin

3 ай бұрын

@@RobertCowanDIY 😎👍🏻

I agree 100% on individual prime towers. My thoughts were something like a 19mm diameter tower, two or three walls in thickness for each individual print head.

great vid thanks!

This is the first I've heard of using PLA as support for PETG... Guess I live under a rock!

@RobertCowanDIY

3 ай бұрын

Ha, yeah. It's been talked about a lot, but I'm not really seeing how it would be used properly, at least for the stuff I print. I think for SOME models it might be just the thing, but it won't always work.

I bet you'll try to print the last one again because of the gray petg error hehe! Great video as always!

Hi Robert, many thanks for your very informational videos! XL question for you please…. I thought I heard somewhere you cannot mix nozzle sizes in multiple tool heads for a print project? Is that true? If so is it a slice limitation? I have an XL on order and I have a couple of use cases where I would like to have the detail where I need it (smaller nozzle) and then less detail (faster printing due to larger nozzle) were needed. Thanks in advance for your reply!

On the issue of the outside seams bring rough without a prime tower, there is a setting for printing exterior walls last, I’ve had good success either the MMU2 enabling that when I go for minimal wipe towers so that any gaps caused by not being quite ready to go yet are not on the outer surface. On the issue with concentric supports being good in one place but not others… this is what modifier objects in the slicer are for. You should be able to have the best option on both places for that with a cylinder modifier centered on your coaster and adjusting the inner parts differently than the outer parts.

@RobertCowanDIY

3 ай бұрын

I talked about this somewhere in the video (it's long, I know), but that caused issues elsewhere. The model is oddly simple, but also a bit complicated to get right. I did try this, but the blob was too big and still interfered. It just needs a purge tower when you're using higher temperature materials since it causes too much pressure inside the melting chamber.

Wonder what it would look like to model the supports to be a part of the assembly and add fuzzy skin to see if the texture would transfer to the PETG 🤔

That wipe tower idea is excellent. Even though I guess I've been lucky with the PETG+PLA mix as I haven't had any problems with the wipe tower, but I do force PETG as the wipe tower structure always.

@RobertCowanDIY

3 ай бұрын

Gotcha. I'm surprised with a lot of people having success with PETG and PLA. They just never stick at all and can't figure out a good way to use it. However, most of the time I'm doing support, it's nearly flat cantilevered sections, which mean it's laying filament directly on top of a flat layer.

Question: Are you able to run the PETG-CF thru a .4mm nozzle? My XL is shipping this week and my previous printer (Bowden tube variety) would clog when printing CF infused materials thru a .4mm. Any details/tips you could provide on this subject would be appreciated as I'm getting ready to switch over to the XL.

@RobertCowanDIY

Ай бұрын

Huh, I haven't had any issues with it YET. I have had issues on the X1C though. But for the XL I'm now using a diamondback nozzle for abrasives and they don't tend to clog.

Zero Z distance is the best option for PLA-PETG supports. Easy option is to use the full soluble profile. I don't know why you had those blobs there, but for me it has always provided a pretty much perfect surface. Maybe it's related to (you) not purging properly between tool changes.

@RobertCowanDIY

3 ай бұрын

Correct, when there's no distance between the outer wall and the support, a blob on the edge interferes with the support and causes issues. If the outer wall of PETG was clean, this would work. It's just that initial blob when purging.

There's an option under multiple extruders to set the wipe tower extruder. This will always be used for the perimeter of your wipe tower. Problem solved on the wipe tower. I've been using it without issue printing PLA as supports for PETG. The other thing to do is design your supports in CAD and trap the PLA in with a wall of PETG around the perimeter to lock it in place. Doing this you only need a few interface layers of PLA. I do this with zero clearance and the parts are perfect. It gets a little tricky in the slicer because it can't seem to differentiate between your parts when it comes to infill, but i found it you make your interface pla later entirely perimeters the slicer works properly. Finally I'd like an in depth review of the diamond back nozzle please. Been eyeing one for awhile but need to know the price is worth it.

Kinda a really funky, maybe too jank to be practical workaround, that stems from something i used to do to make seams less visible, but I imagine you could, in the actual geometry, have a very sharp turn leading to a false internal wall where you could set the slicer to always start the head so that all of that nasty pre purge would be at a known location inside the part so to speak. To put it another way, you have your model, then you just sorta cut into it half way into the outer ring, go around the circle one way, move just a smidge deeper, then circle right back to where you cut in with such a small distance between those walls that the filament fuses together. You could leave the top layers as they are if you use the trick of letting this hack reach its way to the top, and you could probably get pretty small parts to print without a visual headache.. I realize this probably sounds really convoluted but its basically the idea of how one might get a different color section within a part to fuse to that part, but in a circle that stays hidden on the inside of the part. It may or not become a useful tool in your print hacks tool box. Hopefully that idea made sense. --- Oh, also, just another hacky idea, but perhaps making your own prime towers (just slicing in such a way that the heads all go to sacrificial parts first), could be a solution as a bandaid before a slicer solution comes. You could set just a simple rectangular prism for each of the different prisms closer to the print heads so in theory depending on settings they always get hit first before the part you care about. --- Also just got the best wipe tower idea. You could have one material shell all the other wipe tower materials (probably the one that prints hottest). You'd have to manually construct this, so still a band aid, but then you could waste less material, and not worry about parts falling off since you'll know the outer layer will always be strong.

Thanks so much for doing these torture tests on the XL. Great test and interesting results. Curious if you disabled Z-hop or use Z ramping. I was having some bad stringing issues and this solved the problem in one fell swoop

@RobertCowanDIY

3 ай бұрын

Ah, huh. I didn't disable anything. I'm getting nearly zero stringing. The red is stringing a bit, but it was really ONLY on the first use of it. After that, it's pretty much what I'd expect for TPU.

@crashkg

3 ай бұрын

I don't know why I was getting stringing, even after doing temp towers on the MK4. Changing the Travel lift to ramping 1.5mm max, 1 degree slope, lift height .2 eliminated all stringing for me. @@RobertCowanDIY

Case made for using only hardened 0.4mm nozzles. Prusa gives XL purchasers a 30% discount on the Obxidian nozzles in their store...but they're always out of stock and they do not let you order. So the few times I got the stock alert they were out of stock minutes after so it is basically pointless for them to offer a discount (also they only let you purchase two at a time!) So I ended up getting my nozzles in the US from partsbuilt3d - they had them at all full retail price of course, but they had them so I was able to swap out all 5 toolheads to these and now I don't have to deal with thinking about which heads are hardened - I can run anything on any head. I also got rid of the 0.6mm nozzles since the ooze factor is not conducive to multi-tool head printing. Yes, I have tried using the nextruder V6 adapter but the problem is they leak when using them with hardened nozzles, which totally negates the biggest nextruder benefits.

What hardness was the TPU you used? I have so much trouble with the nextruder and TPU. It prints for 2-3 minutes, and all of a sudden the gear grabs itself and the TPU does a full round inside. I have to stop the print, open it up and restart the whole process.

@Kaaaaaaaaaaaaal

3 ай бұрын

I converted my filament sensors to magnetic versions as described in the prusa forum post called XL filament sensor mod for TPU. You should see it on the first page. I also made new nextruder filament guide parts to help prevent the ability of TPU to move around and jam behind or under the gear. Those models are on printables just search XL nextruder main plate and idler lever for flex filament. After these changes I am able very easily feed and print ninja flex 85A TPU. Also make sure you are using brass nozzles for the TPU. In my experience steel just doesn't work very well for that material.

If you could clone or make virtual extruders in the slicer, provided they share the material properties, then you could most likely make different infill patterns etc per extruder, or even other settings for that matter.

if an emulsifier material existed would that do anything for this kind of thing?

Did you retry the print with setting it to only use petg for the wipetower perimeter?

@RobertCowanDIY

2 ай бұрын

I have done prints since this one where I set the wipe tower extruder to PETG, so it made that as the perimeter and it worked just fine. I was just trying to get this to work without a wipe tower. It's fairly straightforward if you're gonna use a wipe tower.

Have not tried it, but wondering if you could change the support type on that section with a modifier.

@RobertCowanDIY

3 ай бұрын

I looked into it a bit and there didn't seem like there was anything beneficial.

@johnvandenbos1673

3 ай бұрын

@@RobertCowanDIY I had a look as well. Surprised there is no option to change the supports with a modifier. Feels like a missed opportunity. Perhaps we should submit an enhancement request for Prusa Slicer.

I find that pla and petg will stick together good enough to be good at supporting each other. BUT only at low speeds. So when the petg goes to print directly on the pla interface layer, if it’s fast, it balls up and ruins the print. If it’s slowed down, works fine As for the wipe tower, as others have said I’ve had it work great when I set an explicit nozzle for it

Would you be able to reduce tolerances in moving mechanisms by taking advantage of materials that don't stick together? For example, a print-in-place hinge printed vertically, with the pinned half being PETG and the receiving half PLA. Would it function if there was zero clearance between the pins and holes specified in the model? If not, how low can you get it compared to single-material, which is already really good on current machines, and is it worth it?

@RobertCowanDIY

2 ай бұрын

OH yeah, you could easily do something like that, as long as the geometry makes sense. It still has issues putting layers on top of other layers with dissimilar materials. There's no real way around that, you can't make them stick in some cases, and not stick in other. But I'm sure some clever designs could work.

You need to select a default extruder for the prime tower. I suggest you select one of PETG heads to build up the perimeters on the prime tower. Then you wont have these issues. The pla will still prime within the tower. The default setting of 0 needs to be adjusted. Ive not had any issues doing it this way. I also make the spacing a little bigger on the prime tower. Try 125 or 150%

Did you switch all nozzles over to .4?

I find the setting under multiple extruders 'Interface shells' works well to provide a better surface finish to flat surfaces such as the one below the TPU. If they interface then it is unlikely to improve things. You will use more filament though as a result but that can likely be managed with settings.

@RobertCowanDIY

3 ай бұрын

Good to know.

Have you tried making the pla petg interface the same? The pla would finish as an offset by a measurement of the petg. As they are the same shape hopefully if the pla finishes cleanly the petg would print directly on top without the zits.

@RobertCowanDIY

3 ай бұрын

They just bonded together. I haven't been able to print PETG on top of PLA and the reverse. It's like printing in the air, nothing sticks.

just use some sacrificial objects (cones, cubes) as prime towers, and assign for each one an extruder :)

@mrhouse3796

3 ай бұрын

I came here to suggest this as well. I don't have an XL to test it on, but it seems like it should be a good solution. At least until they implement separate prime towers in Prusaslicer.

@RobertCowanDIY

3 ай бұрын

I don't think you can assign a specific extruder to a specific object, that's the issue. You can only select 'purge into object' and I'm not sure it knows which one to use. I

@mrhouse3796

3 ай бұрын

@@RobertCowanDIY Painting them all separate colors (or separate materials in your case) wouldn't work? Then again, even if it did what's preventing the slicer from printing the main model first on each layer before it prints the sacrificial models. Definitely something Prusa needs to look into especially for how much they hype it as a multi-material printer.

@Ro3Deee

2 ай бұрын

@@RobertCowanDIY , you can select a specific extruder to a specific object !

@RobertCowanDIY

2 ай бұрын

@@Ro3Deee I'm fully aware, but you can't exempt extruders from the wipe tower.

What is you would make the support part of the drawing. Make it as a body and then select this body to print just in pla instead of the slicer taking care of the support. What do you think of this ? Do you contact prusa to ask for wipe tower for each head. I learned a lot of this channel .

@RobertCowanDIY

3 ай бұрын

Correct, I could just make another solid body in the model and select the extruder. It would be fairly simple to do. However, it doesn't solve the issue about purging. I'll file a bug for Prusa regarding multiple wipe towers.

The tool offset calibration doesn't always notice the gunk on the nozzle. I wasted a lot of time investigating first layer under extrusion issues with multi-tool prints until I found out that I had done a bad calibration with a dirty nozzle in the second toolhead. Preheat + some brass brush before repeating the offset calibration run resolved the issue.

@RobertCowanDIY

3 ай бұрын

Huh, interesting. Mine had a very small piece on there and it detected it. I'll have to watch out for that.

Is Bambu like purging copyrighted? Something like that would solve mixing pla and petg models I would think. A back up for if you can’t put it in the prime tower or just no prime tower at all.

@RobertCowanDIY

3 ай бұрын

It's not copyrighted, it's just wasteful and slow. The reason no one else did it was because it's a bit of a sloppy way of doing it. SURE, it works, but it's not really a well-engineered solution.

@foampodseartips3509

3 ай бұрын

@@RobertCowanDIY I mean just the purge part, not using only one extruder for multi material. I would think unless you have pla on every layer a separate purge tower would not work, so just purge material and wipe would work better.

Print infill first, then inner perimeter, then outer perimeters.

Heres an idea that might work: add cubes of each material onto the build plate and use them as wipe obects. Not sure what order they would print with multi material, but i sometimes add a cube when im doing a thin color change and i want to be sure that the first line with the new color is fully primed. I have a Prusa Mini do i mostly do this because I'm too lazy for a minute of googling to figure out how to turn on the wipe tower Can you add a modifier object to change the support interface settings in a cylinder?

@RobertCowanDIY

3 ай бұрын

That's the issue, I'm not sure you can assign the extruders to purge into specific objects. Just "purge into this object", not purge THIS extruder into THIS object.

You are making me eat my words. I asked if you were hard pressed into making a multifilament project and here were are. words +😮= eaten. Regardless of the final result 20:10 it was a success. Perhaps you can make a matrix of what filaments worked well. (tpu/petg) and which are disasters unless breakaway is the goal(petg/pla)

@RobertCowanDIY

2 ай бұрын

Ha, thanks. Yeah, I think it was a success. If this was a 'real' part, I would just model the supports, make objects to wipe into, and it would work fine. But without those, it still turned out pretty good. From a couple feet away, it looks great.

Hi Robert, Great video but still trying to figurure out just what this method can be used for in a practical sense. Can you actually find anything that a maker would apply this to in the real world. Not sure this was a feature Pursa had in mind for the XL but if this is something that people want to do then they might address this in software as well (requested features) other than that you created a very lovely $3000.00 coster. Imagine if this was a complicated part and you had to figure out all the things you did the ROI would go right out the door. All kidding aside I see more reviewers trying to achieve this with the XL so give it more time and I'm sure the results will be even better but this to me is not a good selling feature as it stands now.

@RobertCowanDIY

3 ай бұрын

I think you're looking at it the wrong way. It's a tool. Home depot doesn't tell you WHAT to build, but they give you the tools and materials so you CAN build something. The coaster is of course just a test part, like a benchy. I'm sure some day I will come up with practical applications, but that's not the point. Once you learn a tool and understand how it's used and what can be done with it, then you can start designing. For instance, if you're designing something but don't have a welder and can't weld, you most likely wouldn't design around welding. Most woodworkers design their stuff to be made out of wood, machinists design metal parts, etc. You design for the tools and processes you have available to you.

For the outer seam on the PETG CF part: If you change the printorder it could be better. Infill/Inner/Outer should have enough purging for a good outer wall.

@RobertCowanDIY

3 ай бұрын

Yeah, but you can only change it for the whole model, and that caused an issue with the overhangs.

@MirageDU

3 ай бұрын

@@RobertCowanDIY Ah ok, I thought you can change it for a single part.

Do you know if there is another printer by Prusa (or another company) that is more expensive that I can pay to beta test for? I feel like only spending $3,000 - $4,000 to beta test a printer with no camera and enclosure is too cheap. I want to spend at least $10K on a printer that doesn't have even more stuff that pretty much every other serious printer comes with. If only they had spent 8 years developing this printer, maybe it wouldn't need so many improvements and say it can do things that it only sort of can with a lot of futzing.

@RobertCowanDIY

2 ай бұрын

Ha, I sense some sarcasm. Do you know of ANY printer at this price level that has an actual tool changer and not just filament purging?

I found it, What you have to is turn off your wipe tower. RC> add shape, make it a rectangle or whatever you wish, copy and paste another, as many as you have material changes. Set each one of the shapes to the respective material extruder. PLA for extruder 1 in the first shape, and PETG in the second shape for example. Then insert your model(s). Make sure the sequence is such that the added prime towers are first then the parts. Press e to see the sequence on the plate to confirm. I found that it’s by the sequence the parts are added to the plate so that’s why you do these purge shapes first. You can scale the height to match part models height later, as you’ll want it at least the same height. You’ll want to RC and do a height range modifier to make them more dense than the model if you aren’t sure about the prime amount being enough before it starts on the parts. I don’t have my 💩 together enough to actually do calculating and make sure they’re enough. I just pull a page from Bambu labs book and make sure the prime is more than excessive and you’ll be in better shape than if it’s not enough. Love the videos Robert, you’re my Bob Ross of 3D printing.

@RobertCowanDIY

2 ай бұрын

Gotcha, so there's a process. I'll have to try that next time.

For the ugly seem and underextrusion: Couldn't you just change the printorder of the perimeters to "Inside out"? You would basically prime Inside the object. I know you can do that in Cura, not quite sure about Prusaslicer, though.

The problem with multi wipe towers is if you have PLA on one tower and then 20mm layers later you start in on the Petg then you have a neighboring wipe tower 20mm taller than the starting petg tower. So you have to strategically place the second wipe tower so the gantry doesn’t wipe out the wipe tower or have something in the g code to lower the bed where the tool head gantry misses the PLA tower when moving to the lower petg tower. Or you have to have it build up the petg tower at the same time as the PLA tower wasting petg, and added time swapping heads needlessly.

Maybe they don't need different purge towers, perhaps they could have different "zones" of a single purge tower per filament type and/or tool heads.

@RobertCowanDIY

3 ай бұрын

Yeah, zones might work. The workaround right now is to make your own purge towers (just simple objects placed on the build plate) and then select 'purge into this object'. But I'm not sure if you can decide WHICH extruder gets purged into which object.

You don't really need a wipe tower though do you? All you need is a purge bucket (e.g. the pooping Bambu solution)

@RobertCowanDIY

3 ай бұрын

In theory. I worry though that if you purged in the back of the machine and then traveled to the front edge, you'd still get some pooping. With this model, it would probably be fine. More testing is necessary ;-)

So… Did you use PET-cf or PETG-cf? They are very different materials.

@riba2233

24 күн бұрын

Petg cf

Interesting with two wipe tower’s, if space it could make them in lower heights but that would be some fiddling.

@RobertCowanDIY

3 ай бұрын

Well, the height always needs to be equal to the current layer height. You COULD move the nozzle away from the model, move down, then go back, but that's a lot of unnecessary travel.

You made a github issue/feature request for prusa slicer right? 😊

@RobertCowanDIY

3 ай бұрын

Not yet :-(

@MichaelJantzen42

3 ай бұрын

​@@RobertCowanDIYwell at least you have a video for the use case example 🎉

@RobertCowanDIY

2 ай бұрын

@@MichaelJantzen42Ha, true.

Why not choose pva instead of pla for support?

@RobertCowanDIY

3 ай бұрын

I've tried PVA a couple of times and it's a trick to print well. BUT, I need to try a bit more.

If you would use multiple Wipetowers, you would also need different bed temps.

@RobertCowanDIY

2 ай бұрын

Eh, it depends. If your material sticks together, you can lay down a base material that's compatible with the bed temp and go from there. Most likely a wipe tower won't have much in the way of internal stresses, so warping won't be too much of an issue. But it's another consideration if you have drastically different bed temp needs.

I would probably just redesign that part to eliminate the need for supports entirely. Great video though.

@RobertCowanDIY

3 ай бұрын

Well, yeah. It's designed FOR supports though. I might try it again without supports just to see of the PLA is really the problem.

IDK what is going on but the audio is waveing in between L and R and is a little bit distracting. Its either that your camera is doing the audio work or something isn't balanced? thanks

@RobertCowanDIY

3 ай бұрын

Eh, yeah. The stupid mic is stereo. I should just convert to mono. Sorry about that. lapel mics should always be mono, but Sony was trying to be fancy.

@ThePrimaFacie

3 ай бұрын

@@RobertCowanDIYNo worries either way just thought you should know

I agree that the alingment is time comsuming, but that is one reason it works so well with multiple print heads. I found a way around the prime towers. I create my own. In Prusa slicer I add a shape usually a cycliner at the front of the print. You could add one for each filament and select each with a different filament. Print that before going to the actual print. It will get the extruder loaded and any waste out,

@RobertCowanDIY

3 ай бұрын

Correct, the ability to add multiple purge towers should be the next feature. That would solve most problems I'm seeing.

Please someone refer reliable 30x30x30cm printer. XL im not interested at this price point. I’m using 7 MK3S+ , IM looking for same or closer reliability large format Printer. Haven’t seen anyone doing comparison larger printers.

@RobertCowanDIY

3 ай бұрын

Yeah, the problem is larger printers are much harder to make apparently. If you JUST need larger size, I've had decent luck with the Creality stuff, if you're just doing basic things.

@3dservz446

3 ай бұрын

@@RobertCowanDIY Thanks a lot Robert. I am going to try K1 Max. very difficult to change the brand and reliability from Prusa.

@RobertCowanDIY

2 ай бұрын

@@3dservz446I have a K1 Max and it's 'meh'. I'm still debating if I keep it or sell it. The print quality is not very good, but it's fast and fairly reliable. But I had a lot of issues printing with ASA, due to inconsistent bed leveling.

@riba2233

24 күн бұрын

Forget about creality, qidi xmax3 is a better option

I thought I was listening to Bill Gates speak 3D Printing. :)

@RobertCowanDIY

2 ай бұрын

Ha, I'm not sure if that's a good thing or a bad thing!

@MichaelLamas1

2 ай бұрын

@@RobertCowanDIY Ha. It's a great thing. Either way - your work is exemplary.

@RobertCowanDIY

2 ай бұрын

@@MichaelLamas1 Thanks!

Prusa could easily put a brush and catch tray for it to wipe against on the side and not even need a tower.

My first printer was a Replicator Dual back in 2012. One of the things i did to help with oozing and minimize the prime tower or completely remove it on larger prints was print infill first then perimeters, effectively making the infill an internal prime section. Unfortunately without part cooling and a slicer that couldn't turn off the second extruder heater so it could stop oozing it rarely gave perfectly clean parts if it didn't get knocked off (under extrusion helped with that), although it did print me a few functional parts i removed the second motor and was happier with just a single head and clean parts. Long->Short; I REALLY don't want to put a Prusa XL on my CC 🥲

If you are using PLA to support PTEG, set your support distance to 0(soluble). There is no need to leave any space between the two.

@mattanderson111

3 ай бұрын

He specifically picks up the print where he did that and showed how it was the worst looking one.

@WonkoTSane

3 ай бұрын

@@mattanderson111 His issues stem from a number of his settings being off, most probably the blobs due to his wipe tower settings. Most of my printing is done with PETG and PLA supports. Anything other than soluble settings causes issues with the material not being supported correctly. There are also times when it just will not print with dissimilar support materials. If you are printing PETG on PLA with no adjacent PETG it will fail almost 100% of the time in the same way that it would with no bed adhesion. There is nothing for the filament to stick to.

@BaioWithMayo

3 ай бұрын

@@mattanderson111 I second this, on flat areas its better than PLA to PLA support, but on curves (lets say an upside down U) it actually looks worse. Would love to hear Wonko if he as done this just on flat or more organic structures, because with the XL we should be able to make perfect supports and get rid of the biggest struggle in 3D printing with it

i hope prusa doesn't take 5 years to implement multiple wipe towers

@ClintonCaraway-CNC

3 ай бұрын

For the price of the XL... the length of time it's taken to deliver... every single detail should be perfect. This was supposed to be the next generation of Prusa and all I have seen is trouble shooting and community solutions for problems Joe should have had fixed three years ago.

@krollmond7544

3 ай бұрын

On a serious note does anyone know why Prusa is taking so long with stuff like the XL and MMU for the Mk4?

@SquintyGears

3 ай бұрын

I think the filaments settings is a much bigger issues... You can model in a prime tower for your project. Getting material specific settings in being so annoying is more problematic for the workflow

@gabemoore8119

3 ай бұрын

Multiple wipe towers would be a problem with the layer height. If you have multiple materials with multiple wipe towers how would you ensure the wipe towers all keep on the same layer as the model so that you don't crash the tool head or linear rail on the model? It could be done, but not without a significant addition of time.

@SquintyGears

3 ай бұрын

@@gabemoore8119 no that's exactly how they are implemented. Every tower is kept at the current layer by getting printed on until that material isn't used in the print anymore (because generally while the material is getting swapped in and out it does need to be wiped every layer anyways). It's just more time and waste, it's not that complicated. And when people want/need multi-material they're ready to make that sacrifice. Because it's still the best way to do it.

3mf is not very good quality (embedded STL) use STEP instead and split to parts in Prusa slicer to get a vector based model.

@RobertCowanDIY

3 ай бұрын

It depends on what your export settings are... For structural models like this it's just fine.

Multiple Towers would also allow using different nozzle sizes for a single print job. Currently the slicer does not officially support mixing nozzle sizes. It a really cool application as it allows having fine details where needed, and printing the low details areas quicker with a bigger nozzle.

@RobertCowanDIY

Ай бұрын

Correct, there are a few 'edge cases' that aren't really addressed yet, but with some fiddling, you should be able to do just about anything.