First Proper CNC Router

[diycnc]

Just stumbled across this on YouTube and thought it was worth sharing. This guy cuts aluminium on a 3D printed MPCNC better than most videos iv seen from people with a "propper" diy cnc router! Mighty impressive!
Hope my machine can perform even half as well as this.
https://youtu.be/zefnrPRvc9Q

[Kitwn]

Very impressive! That just goes to show how important it is to spend time learning how to use the tools you have to their maximum capability.

I'm certainly tempted to try out my router on aluminium. I hadn't really though it was up to any serious work it until I saw that.

[JAZZCNC]

I'm certainly tempted to try out my router on aluminium. I hadn't really though it was up to any serious work it until I saw that.

It's the adaptive tool paths that allow him to get away with it as they take very lite cuts but at full depth. If you notice when profiling using typical profile toolpath he was using a very small depth of cut(DOC) and feed rate because the machine wouldn't be able to handle taking correct DOC to suit the tool diameter. However Still impressive to say 3D printed.!

[Kitwn]

It's the adaptive tool paths that allow him to get away with it as they take very lite cuts but at full depth.

I noticed that. I think it's something my beloved CamBam software cannot do and might just be the last straw that kicks my a**e into gear and makes me put the effort into learning to use Fusion 360. I'm sure my machine is rigid enough, or it will be when I finally find a suppllier for the right sized Ally plates to convert my Z-axis from it's current plywood prototype assembly.

[diycnc]

Transformer arived today. Very please to see it came with a mount bracket too. Couldn't wait to test it so wired it up, only to spend half hour trying to figure out why there was no output voltage... turns out my multimeter had died! Try again tomorrow with a new one.

Thinking of building a small wooded cabinet for all the electronics, maybe with a plexiglass window if I can keep my wiring looking nice and tidy. Are wooded cabinets considered safe?

[AndyUK]

Thinking of building a small wooded cabinet for all the electronics, maybe with a plexiglass window if I can keep my wiring looking nice and tidy. Are wooded cabinets considered safe?

I don't think theres anything wrong with a wooden cabinet - plenty of people do it. I think metal is probably better at keeping moisture out, (electrical) noise in, and means anything that manages to go bang is contained by a strong earth-connected box, but its probably overkill for many of these machines. From a financial perspective, my metal cab certainly wasn't cheap, and I'm pretty sure its not going to add any functionality to my build. I have a sneaking suspicion mine is mainly for aesthetics....

Another option is to grab yourself a server rack with a glass front (reasonably inexpensive on ebay - especially the kits or 2nd hand), or use a large PC case.

[cropwell]

Another option is to grab yourself a server rack with a glass front (reasonably inexpensive on ebay - especially the kits or 2nd hand), or use a large PC case.

Server cabinets are cheap enough, the larger ones can't be given away sometimes. I have one dismantled in storage, deep enough to put a tool cabinet in the front and the control electronics in the back.

I built my control box in an old computer case, with the computer in another :-


It got a bit messy recently when I splashed it with a solution of black ABS, nothing like the mess when a spray can exploded on my garage

Cheers,

Rob-T

[diycnc]

Got a new multimeter and I'm getting 33v from each secondary. Glad I didn't get a 35v transformer or I would be very close to the 80v max.

To wire this thing in series, am I correct in thinking I connect the yellow and black?


Also the drivers dont have positive and negative marked on the input, both are just labelled AC. I'm guessing that because it AC it doesn't matter which way around it connected?

[AndyUK]

To wire this thing in series, am I correct in thinking I connect the yellow and black?

Yep.

[diycnc]

The drivers dont have positive and negative marked on the input, both are just labelled AC. I'm guessing thats because its AC it doesn't matter which way around its connected?
Does this also apply to the location of the fuse?