That's very cute. it hadn't occured to me that you could have 3d persistence of vision, but as soon as you see it, its obvious.

Thank you for the great review. This is about $3300 to US including DHL shipping. I agree about the reflow oven, I use a table top Convection Toaster Oven 20 seconds and remove PCBA. If making duplicate PCBs set timer to the previously noted value and make many! They also have a decent Stencil Printers for about ~ $415 shipped. These have fine pitch threads for precision adjustment, not the crude 1/4-20 bolts of other models. Thanks again for this.

I love that jumping frogs😇. If I see that in my childhood , sure I give u all my money for that.

Very nice, thank you so much for the insights.

@n0f8r

5 ай бұрын

you're welcome!

Amazing.

Hi Kevin, excellent advice. What type of paste do you use? Thanks

Seems there's a major problem with Charmhigh's more expensive machines and their pneumatic feeders bouncing parts in the tape before pick-up - video from Sean the Unexpected maker here: kzread.info/dash/bejne/qKONs66CY6rXeJc.html Thanks to @j anderson, @Evils Dexter and @mr dashpuppy for pointing this out. Note there's actually a real problem with the camera on their cheaper machines as well - like the one in this video - but it's well documented on the forum (desktop pick'n'place google group) and you can work around it. Basically on startup the camera is often not detected properly and you need to restart the pnp machine until it is.

@mrechbreger

4 жыл бұрын

Those feeders are from an external company not from Charmhigh directly. Even if they bundle them they're not directly from them. It seems like some part is broke (due to wrong installation) in his feeders. Which is not his fault though.

@dholi2k

3 жыл бұрын

I've had the same machine (T560P4) for 3 years and never had the same problems as Sean. I've seen his videos and seems like he just got a bad one. I've made boards with over 200 components (0402 size and up) and only sometimes have to fix 2 to 3 components max. You get what you pay for at the end of the day and these machines cost a fraction of their counterparts, but once tuned, they do actually work well.

@Nickle314

Жыл бұрын

Questions. Are there any pick and place machines that also dispense the solder? At low volumes, it removes a step. Almost just another nozzle. How many nozzles do you need in total?

Would this machine be good enough for a QFN48 0.4mm pitch IC?

What is the thickness of the sheet metal that is used for the solder stencil?

@n0f8r

Жыл бұрын

PCBWay's standard stencil thickness: 0.12mm

Kevin, there's got to be a way to flash all of those cards at once. Can you split the cable and go to 4 from 1? or 100 from for that matter.

@n0f8r

3 жыл бұрын

Cool idea - but since this video I've realised I can run the serial upload at a much higher speed of 460800 baud and still get reliable loading. I thought I experimented with diff upload speeds at the time, so maybe it's down to ESP core or PlatformIO improvements since then. Anyway it takes about 5 seconds per board now.

What is your opinion now after 2 years. We are in a somewhat similar situation and are considering this machine. Any experience with 0402?

@n0f8r

2 жыл бұрын

Personally I wouldn't feel comfortable trying to place 0402. I feel like there is some amount home/zero drift during sessions. I limit myself to 0603 and that mostly seems fine. You could check over on the groups.google.com/g/desktop-pick-and-place forum for other folks experience with 0402 though. There do seem to be a growing number of people using this machine (and the 48VA/B) actively there now which is a big plus. The vision video on/off thing is still an issue for me, and the solution so far is still the same - restarting the software, or the machine if necessary, and it's normally ok after a couple of tries. Haven't looked for any alternatives - but going by the continuing and expanding activity on google group I'm guessing it's still the main option at this price point.

2:42 why do you take of the diffuser?

@n0f8r

7 ай бұрын

It blocked and slowed heat ramp, with it in place boards would cook instead of reflow

You should do a python script so a button press flashes the board and use an external button working as a keyboard much easier

How is this machine performing here in March of 21? We are looking at a PnP machine for our own operations. BTW a T962 Oven is stupid easy to use and is set and forget.

@n0f8r

3 жыл бұрын

haven't used it since the initial run - will be firing it up again very shortly for a second run though. I bought it because 4-mation uses 4 different boards and it was at least similar in cost if not actually cheaper than paying for board assembly. Also since I've not outsourced board assembly before, it felt less risky. The problem with the 36VA is the camera module - it's super flaky. Out of the box it just would not work, at all. That might have been because of the virus on the supplied USB stick with the software. A full PC wipe and re-install of windows 10 pro with known clean software version worked, but it's still flaky. Sometimes when you start the machine and the app, the camera just doesn't work, and you have to power cycle the machine and restart the app until the camera starts working. Once it's working though it stays working until you power down.

@n0f8r

2 жыл бұрын

@derekspeare - did you pull the trigger in the end? I used the 36VA again recently to process a second batch of boards, and as before it was not seamless, but it worked with some babying. Now I realise that the main problem is not that the camera fails occasionally and requires restart (it still does), but that there is drift or random shift of coordinates between runs, requiring checking of pick-up coordinates and adjustment for every run, But given that I can't afford a "real" PnP machine, or the time to build my own, it still seems like a rational compromise for my purposes...

@DerekSpeareDSD

2 жыл бұрын

@@n0f8r No, not yet lol...your experiences are the reasons why I have held off. I did buy a seven thousand dollar laser cutter instead. We build by hand and frankly, we're really good at building the components we manufacture. We hand place QFN and 0402 parts without issues :D For the money this machine costs, it has to work and do so reliably, and that's not something I've been convinced it will do...and has to be able to run several thousand boards a year :P

@n0f8r

2 жыл бұрын

@@DerekSpeareDSD several thousand boards a year would not be a problem. Machine is definitely not reliable, it does need a lot of babying - still orders of magnitude faster than doing it by hand though - at least for me anyway. In a full day I could easily do about 200 of these boards now, just haven't needed to yet :( Course - I deliberately avoided 0402 in my designs because I was eyeing this machine and forum advice was "your milage may vary" for 0402. Jealous of your laser cutter! been wanting one for years... Still driving an hour each way to a maker space that has a decent one...

@DerekSpeareDSD

2 жыл бұрын

@@n0f8r Laser cutter is good - works and keeps working. We usually stay no smaller than 0603, but can do 0402. Our stuff is pretty simple, though. I can build myself about 50 in a day...but it's tedious as F. If this machine was "fire and forget", I'd have bought one long ago :/

Thank you China. PS: Good video.

too bad charmhigh is lately screwing people with defective machines

@JasonLeaman

4 жыл бұрын

AGREED !

i felt like killing myself at 2:34, i just bought a big reflow with conveyor belt and 5 zones and i am new to this smt nonsense. : (

Price in India how much