are you implying... nevermind. :) enjoyed! more like this please.

@andersjjensen

4 жыл бұрын

Not everyone can do magical karate chops :P

@malliz1

4 жыл бұрын

@@andersjjensen not everyone has the right chi

@ROBRENZ

4 жыл бұрын

Thanks Tony, yes I was implying ;-)

@ianbertenshaw4350

4 жыл бұрын

Just jump on that time lathe of yours and go into the future to where the part is finished and bring it back - too easy ! My problem would be trying undrill all those holes so i can fix a fatal marking out error which I typically only spot on the last hole 😫

@xmachine7003

3 жыл бұрын

@@ROBRENZ 😂😂😂😂

Thanks Robin, enjoyed the video. Nice to see you have your 48GX kept safe in a plastic bag!

This is for you Tony!

You say boring and nothing exciting, but I always learn something from your videos. Very helpful in how you explain how/why you do things, such as using the knife edge square the way you do as an example. Thanks for taking the time to put this all together. All the small tidbits are in there, explaining how you use your blocks, cleaning things, et al, all very helpful.

For someone like me who did not go through a machinist apprentice program, this video was worth a lot. The tapping, use of the 1-2-3 block for datum reference, the filing, paper on the surface plate, the fillet meister AND the sheet metal shield around your table put a lot of useful information into a very few minutes. Thanks again for a really useful channel.

I dont think its possible to not get excited about a ROBRENZ or Oxtools video. You all could do a video of doing your taxes or cleaning your bathroom and it would be a full watch.

“This is for you Tony, no special effects!” Really got me with that!🤣🤣 Awesome work as always Robin, excellent content!

Robin you saved all of that center material also. Conservation of materials,genius.

Watching over your shoulder doing even basic things is very educational. Thanks for all the videos!

Awesome video. Nice usable chunk left over from the drilling trick. The rest of us would have been excited to throw chips everywhere. Learn something new every video. Thank you.

Good to see someone still using an HP48G (or possibly S?). Was super bummed when my 48GX screen broke in 2004...luckily still have a 48G+. Luer lock tips for both syringes and bottles are excellent. I buy a few different blunt tip sizes from ~24 to ~10 gauge for accurately applying adhesives, lubricants, solvents, thermal compounds, etc. Been watching religiously since near the beginning Rob...have built a passable university machine shop on the knowledge gleaned from you, Tom, Ol' Tony, Stefan and Adam. I can't thank you enough.

Never need to apologize for voice overs. In fact there are many positives, we can hear what's being said without background noise level and you can focus on what what you want to say instead of dividing your attention between the job at hand and providing commentary.

So satisfying when you knocked that core chunk loose...

Really good video Robin. The This Old Tony hit was funny as hell! I don't like holding my hands up to protect me from chips. Been there, done that.

This may not fall under the category "Exciting", but I had a good time none the less. Due to my disability I won't ever by able to afford machining equipment myself, but I sure do like to "get to hang with Robin in the shop" :) That you throw a bone for ToT while we are at it is just a nice bonus :D

Thank you rob, nice save on material. And the karate chop, perfect, and real! We are being spoiled.

Mount the v on an angle to the belt and it will use the entire belt as you move it accross, instead of needing an ossilation.

@ROBRENZ

4 жыл бұрын

You will get a secondary burr on the diagonal

@wheelitzr2

4 жыл бұрын

@@ROBRENZ I shouldn't have even tried and should have just assumed you had a good reason, because you did! Thank you for the reply, always learning.

@xmachine7003

3 жыл бұрын

@@wheelitzr2 always try. Always!

the guy I did my apprenticeship under taught me the drill roughing technique and the first production shop I went into laughed at me when I did it....THIS IS HOW ITS DONE MARSHALL!!!!

I am studying engineering science rn but this video just made me wanting to become a machinist a little more :) Thanks for the great video!

Simple, straight forward, but still learn something. Thank you Robin.

@garys9694

4 жыл бұрын

I say we all should learn something each day, if not, what the hell's the use?

Your channel has one of the best Like-to-views ratios I’ve seen in a while. Your content is so information rich. Thank you for sharing what you can.

@ROBRENZ

4 жыл бұрын

I appreciate that!

I enjoyed this video. The fast forward kept it lively.

With the chamfer sander, why not make a mount that holds the angle iron guide at an angle across the belt width, so you hit the full width as you pass your part through?

@ROBRENZ

4 жыл бұрын

You will get a secondary burr on the diagonal

Never a dull video from you! Thanks for sharing this technique with us, it may be old school but is still useful and relevant today.

Thank you Robin for another extremely informative video. These tend to be way beyond my skill set but I always walk away with something completely useful for my hobby shop but more importantly, I've been able to impress my supervisors at my new job. The effort you put into producing this content is greatly appreciated.

Hi Great stufff - for chain drilling in steel I drill out alternate holes with a slightly larger drill - it breaks the web out on each side without the drill wandering into adjacent holes .

@ROBRENZ

4 жыл бұрын

Great tip!

And I actually find voice over much more comfortable to watch. It comes out very calmy & you can better concentrate on the actual work. Thanks for another great video Rob! Cheers

Drilling that core out also left you with a possibly useful piece left over. Thanks for the video.

@xmachine7003

3 жыл бұрын

Big chunk of useful. Good eye!👍

Ive been doing the Drill roughing for years now,,,seems easier on the machine and quicker.....Very Good Channel A+

That was a blast! Not just a cool drilling routine, but you get a useable piece of Cast Iron to use later....

Love videos like this..... where I can actually feel my brain expanding, & getting smarter while watching. Thanks Robin!

@xmachine7003

3 жыл бұрын

Once a person's mind is stretched by a Great idea,it never returns to its original dimensions.

I sure am glad that a pro is using the same method of scribing lines with a caliper that I use. Fun video!

Very nice use of the mallet! TOT will approve!

After all the years of knowing you - your workshop is still on my xmas list - keep up your magical work

Thank you Rob. I always enjoy your videos.

Nice way to not waste metal! Looking forward to seeing a build of a new oscillating chamfer grinder!

I have nothing to contribute, just commenting to make the algorithm happy.

Great video, always something to learn watching a master machinist work! Thanks for sharing!.

@ROBRENZ

4 жыл бұрын

Glad you enjoyed it

I like the way you did that. Plus you have a useable piece left over. Thank you for the video

@ROBRENZ

4 жыл бұрын

Thanks for watching!

12 minutes of #descriptioninaudio that's a YES !

Thanks Rob, looks great! I liked the plastic bag on the calculator trick. Consider that idea stolen ;) I'll offer a trade of suggesting modifying your chamfer jig so it's not square to the belt. Unless draw filing we don't normally file along the part axis, so no need to sand precisely along it either. Chances are a slight angle wouldn't even be noticed in any case.

@ROBRENZ

4 жыл бұрын

You will get a secondary burr on the diagonal

@886014

4 жыл бұрын

​@@ROBRENZ Very good point Rob. However I don't mean to go crazy on angles, and just a few degrees will spread the wear area over the belt of that length considerably and I've never seen any burr when done like that to be quite honest. A machine like this has been something I've wanted to make up for a long time. I currently just use a belt grinder freehand and instead of yet another tool to take up space, may make up a jig to do this type of operation. My grinder has good facilities to allow tables and jigs to slide on/off BTW, no connection to this company, but this is the 48" belt grinder I use and it's from a Sydney, Australia company. I think you will appreciate some of the simple yet very clever engineering functions he's incorporated www.radiusmaster.com.au/belt-grinders/radius-master-48-series-belt-grinder/ I think they export around the world.

Robin, I don't know what I was expecting but its way cooler than you led me to believe. ;). That was very nicely done, as usual. Thank you for sharing!

Robin, I take notes on many of your videos. I just reach for the notebook and scribble key words. Sometimes equipment, sometimes technique, sometimes solvents, support and position nuances bessel points and airy points..... Things to go study. Now I also know what I'm going to do with my untrustworthy metal surface plate, if I ever own a trustworthy surface plate...I just wanted to say thank you for sharing. I got a very late start to machining and have only recently done my first few operations, but understood where I was tolerance wise and what's practical with what I have.

@millomweb

3 жыл бұрын

Oh dear, it sounds like your 2 surface plates short of a full set.

@HIBAW

3 жыл бұрын

@@millomweb Yeah, but I'm also the dullest tool in the shop.

@millomweb

3 жыл бұрын

@@HIBAW That makes for a funny thought: "I've reground my surface plate to a point" !!

Well done. Looks like an HP 48G calculator in the resealable bag. Nice touch. I use that model myself. We have some great single point threading programs on them around here. Thanks

And you got a spare piece of ductile iron. Love it👍👌🇦🇺

we use the same method at work to put large holes in thick plates. Punch holes with insert drills, remove lug, mill clean then bore to size. Works a treat

Nice video. Love this channel and appreciate a lot your videos for the knowledge 🙏🏼

@ROBRENZ

4 жыл бұрын

Glad you enjoy it!

What's the bell for? That slug was pretty awkward to handle with all those feather edges. Don't drop that and try to catch it. All the best, Tom

@ROBRENZ

4 жыл бұрын

The bell is for when Uriah needs help

For ripping a lot of material out quickly, you can't beat chain drilling- Nice job!

@bobvines00

4 жыл бұрын

Robin saved a big chunk of ductile iron for a future project too. Since drills are the fastest way to remove material (via machining), drilling like that ought to be about the fastest way to remove that material.

Great engineers use old school RPN HP calculators :)

this soothes my need for precision and attention to detail

Like the voice over actually!! Good way to save material and chip clean up too. Thanks for tip.

@ROBRENZ

4 жыл бұрын

Glad you liked it

Pop the waste cube in the post to me, then I can turn it into the fixed lathe tool post to replace my compound, it looks just the right size. Great video, still plenty of tips to pick up on a simple project.

Thanks Robin, I did learn from this - sanding block, meister chamfer, flexing the square to confirm contact. I got an extra surface plate and an old porter cable belt sander just waiting for attention! Thanks again!

Happy Saturday! I love your Chamfer-Meister™ tool, I would love to make one of my own, more info please! :)

Machining ductile iron is so nice. Could be how I wound up with my heavy iron addiction though. lol

@ROBRENZ

4 жыл бұрын

I love the smell Brian!

@xmachine7003

3 жыл бұрын

@@ROBRENZ like a Buck in the Rut!!!

Excellent travail Monsieur Tu mérite un j'aime + abonnement . Un grand salut de Casablanca " Morocco "

Thanks for another interesting video.It's always interesting to observe the approach of an expert. I personally have an aversion to scribing with digital calipers, but it is so convenient - my solution: I don't use my Mitotoyos for scribing but have a cheap generic set that I don't mind "abusing".

Would love to learn from you Rob. You are a grand-master.

Thanks for the upload Robin. I always learn something from your videos. I enjoyed the voice over. Cheers from Australia Reuben

@ROBRENZ

4 жыл бұрын

Glad it was helpful!

When you have time, I would love a video on the chamfer setup.

Relaxing video for a Saturday morning. Just bought my first cnc mill (retrofitting an EMCO F1). Hope to have that going in a month or so.

I haft to admit that this is the most impressive thing I have ever seen in machining!

@wyldanimal2

4 жыл бұрын

Years ago, in the 80's rough drilling was a common metal removal practice. even the CAM systems back then had an Automatic Rough Drilling routine. You could even use center cutting end mills and do Plunge Roughing. or with Non-Center cutting end mills, Pre-drill for the center of the end mill then do Plunge roughing.

@SuperAWaC

3 жыл бұрын

@@wyldanimal2 mastercam still has those cycles hidden away. you can still use plunge roughing if you know where to look, though i really wouldn't ever use it anymore

This made my weekend. Thank you for the education.

Reminds me of working as a helper at the mold shop. One of my first tasks was to drill sequential holes to clear out a cavity in the 10" mold base.

Enjoyed the video. Thanks for sharing.

@ROBRENZ

4 жыл бұрын

Thanks for watching

Where do you get the silicon carbide sanding sheet big enough to cover that plate? That plate seems larger than 9"x11"- a typical size of a sanding paper ... Amazing skills and craftsmanship. You bring the whole machining experience to a different level. Your spindle bearing install and cleanup video is mind blowing and all your videos really ... respect!

@ROBRENZ

3 жыл бұрын

Thank you and glad you enjoy the content. Look in the description of kzread.info/dash/bejne/YoSupcueadPNgM4.html for a source for the larger paper.

For everyone commenting on setting the grinding belt askew for chamfering; does it not occur to you that you would want the belt finish in line with the chamfer?

All your videos are a rocket science for me... 🚀 Well done!

Great vid. I also do manual and cnc on my SMX.

Great old school performance.

I like the smell of brand new tires

Instead of an oscillation feature on the chamfer tool, why not simply angle the guide across the belt so that the whole face of the belt is used all the time?

@hkkhgffh3613

4 жыл бұрын

For real! I was ponderin how to design the osc feature... wicked!

@johnnason7019

4 жыл бұрын

Might leave a burr on one side if it was angled.

@hkkhgffh3613

4 жыл бұрын

@@johnnason7019 For real ! True!

@johnnason7019

4 жыл бұрын

@@hkkhgffh3613 of course it would also be interesting to design a version around a wheel cutter with straight flutes and see if that wouldn't leave a burr, the sander is probably more forgiving though.

@Broken_Yugo

4 жыл бұрын

@@johnnason7019Good point. I was looking for the reason why that idea, which I also had, was problematic.

Slick !! Boy I'm jealous of this guy

Now that's a quick way to remove a whole lot if stock and still be able to reuse it. I must say I was a bit shocked when you used your caliper to scribe those lines. I thought that was verboten?

Drilling that block out was a really good method You should keep the drilled out block and put it on a shelf. It looks cool

Definitely old school - my dad had to cut parts out of flat stock on a Sigma Jones jig borer using a pattern of adjacent drilled holes when he started work in the late forties.

I prefer voice over style videos. It can teach without belaboring the point. Thanks for sharing. 👍

@ROBRENZ

4 жыл бұрын

Awesome, thank you!

Outstanding! Very nicely done and now you have some metal to do something else with, a little like core drilling. We keep the slugs .... never know when one comes in handy. And sure would like to seed what you did on the chamfer meister. Thank you for the video.

Awesome video! Questions on the belt sander, is it possible to have the v grove mounted at an angle such that as you push the part through the v grove, it is also being pushed across the sander? In other words, the part/sharp edge start at the bottom right of the belt sander platen and end at the top left as oriented in the video?

I’ll take a video by you however I can get it! Thanks Robin!

Nice DPM with the AGE3 control. Just noticed this since I recently purchased a Seiki AGE2 knee mill. Love your content!

@ROBRENZ

Жыл бұрын

Awesome! Thank you!

Ref Chamfer sander, could you have it oblique to the belt, say 15° or so? Great vlog, thanks for sharing. Regards John.

Wow Robren! Great video yet again!

On the Chamfermeister wearing a grrove in the belt of the sander arrange the V that the work piece slides in to be a long diagonal on the belt. In that way the wear should be (more or less) evenly distributed across the width of the belt. You might have to do some major re-design of the setup though. ETA: now I see that Seal Piercing said basically the same thing.

@wyldanimal2

4 жыл бұрын

The Edge finish would no longer be parallel to the work. so it depends on the desired cut marks. Straight and Parallel or at a skewed angled.

@millomweb

3 жыл бұрын

@@wyldanimal2 Nobody complains with angled results on helical gears ;)

Seems like a small squareness comparator would be great for adjusting that. There's a proprietary green plastic at work that I enjoy machining because it smells like lemon lime candy when you're cutting it.

Thanks again, uncle Robin! Good content as usual, you always put some valuable information into your videos and present it the way that even roughing a cast iron block seems to be more interesting than almost everything else I have watched this week. I would wish you having plenty of work to do but then we will have less videos, so I'm hoping you won't be too busy and keep up the crazy pace. BTW you have already made more videos than in 2019 and it's only end of May!

@ROBRENZ

4 жыл бұрын

You are very welcome

Dear Robin, Without a shadow of a doubt, nothing you make is ever dull! Regarding the chamfermeister, to overcome the the groove wear problem, have you tried mounting the guide on a slight diagonal, so that the chamfer valley covers the full width of the belt? Best wishes!

@KISSMYACE3203

4 жыл бұрын

The issue with this is that your grain line isn't parallel with the part.

@flatsurfaces1913

4 жыл бұрын

At where I work we use an old Smaller Astra tool and cutter grinder at with a diamond cup wheel at 45* and a large * riser * steel block on the table.(with a lot of material removed from the back side because the bottom 3rd of the Cup wheel is inside the large steel block) On the top of the steel block there is a right angled block (with the bottom paralleled the table) with most of the inner corner cut off (it’s whole at the two ends and 3mm ish slot going through the corner) and the wheel is basically in the bottom steel block at 45*. You run your part across the top right angled and the cup wheel at 45* cuts a chamfer in. You can control the chamfer size with the Y axis and sometimes put masking tape on the bottom and side of the right angled piece to prevent the bottom or side of the part from scratches. It’s great for tool steel

@ROBRENZ

4 жыл бұрын

You will get a secondary burr on the diagonal

@KISSMYACE3203

4 жыл бұрын

@@ROBRENZ I was going to mention that too, but I wasn't sure if the angle was enough. I just do welding/fabricating, but I try to explain to people when deburring metal (with an angle grinder), you can't have the wheel perpendicular to the edge as it just moves the burr to one side or the other. Always grind with the edge parallel with wheel rotation. Getting to people to listen is another story though. Thanks for the awesome content.

A hair dryer for the drying dykem works well

CHAMFER MEISTER: Rather than use oscillation, rotate your v-block around the normal of the belt-plane so that it makes a 10° angle. I think this will work well if two things are considered: 1) The angle remains small. 2) ratio of speeds times belt length gives a small periodic distance: d = (V_part/V_belt) * L_belt (d) would be the distance between high/low spots along the chamfered edge.

@ROBRENZ

4 жыл бұрын

You will get a secondary burr on the diagonal

More interesting viewing from Robin.

Thanks Robin, I hope Tony is watching :)

I like the way u used the top of the end mill instead of the bottom. I hate going to use an end mill that someone has used only the the first 2 mm so the bottom is blunt and top half has never even seen metal.

Thanks for this posting Rob. Suggestion for the chamfer meister: Position the slide at a shallow angle across the belt, rather than inline with the belt direction. The finish will not be quite as flawless as the inline grinding, but simpler than working out an oscillating arrangement.

@ROBRENZ

4 жыл бұрын

You will get a secondary burr on the diagonal

No, you’re not sick, we machinist types all have a love relationship with iron and steel.

+ a soothing, medicinal video---antidote to society mayhem :)

@ROBRENZ

4 жыл бұрын

Glad you enjoyed it!

I got a very nice surface plate for next to nothing... could use it to stick on the sanding paper. I have to check... it may be a bit large at 800 x 600 mm. There is a separate video on it I remember. This particular plate is not in A+ shape anymore so I suppose it would make a good plate for this purpose. I may run a stone over it to check for burrs. And in fact since yesterday I am the proud owner of a Jung surface grinder so 'precision ground toolroom stones' are now within reach. Not to mention the recent addition of a mill and a shaper, next to my already vast amount of lathes and various machines.

I am very intrigued by your milling machine, is there an overview video? or will there be?

Poetry in motion👍🏼

That looks like a hiedenhain screen dose use those 1vpp scales as servo feedbacks . I like the price of the kent cnc your gonna have everybody looking for one of those trak machines . I like cheap tooling ( you tube smell-O-vision) Its wet dog hair that cast iron. chevy crankshafts v8 SB .720 throws/two on the end 1.1" High tension blade dose it drill thinning helps. drilled a scrapyard R/R track sombody welded on ( This piece of R/R track really means somthing to me) found where the weld heat effected zone I guess a really hard alloy can be formed there most difficult piece of metal i ever cut found the value of having a couple carbide and m42 drills beautiful drill out yourself there must be stress relieved good save