I wish to start to publish some cnc stuff videos on YouTube, so here’s the first one.
In the next one I will show this babe in action.
I know, I know, a Mitutoyo Micrometer and Caliper set for US $60, shipping included, can’t be true. Chinese tools aren’t so bad, but these Mitutoyo chinese counterfeits are a joke.The mic doesn’t even look like the real one, and the caliper is the typical chinese cheap caliper (well, a little bit better may be, but not a Mitutoyo). The mic is usable, but I think the caliper needs some tweaking to make it a worth tool. The seller, jingshengyang2088, has a 99% positive feedback. Lesson learned.
Are you searching for a new, cheap power supply for your CNC project? Well, here you have two options for a 24V / 8A supply.
I bought Sonyang for $35 just here. I don’t remember how much I paid for the MW one, but for sure it was in the same range. So here are the guts, Sonyang on top, MW below.
Some things to point out:
- Yellow plastic cover on MW is not well designed: can’t be fully opened (I will just remove it).
- Soldered fuse on MW, socket fuse on Sonyang.
- Dual output 24V terminal on MW; triple on Sonyang.
- Way better output rectifier heatsink on Sonyang.
- Overall larger components on Sonyang.
Of course a visual inspection of the boards doesn’t tell the full history, but to me, there’s a obvious choice.
Update: Second power supply brand is “Meang Wel”, not “Mean Well” as I thought. Real Mean Well power supplies seems to be a lot better.
I’ve got these motor mounts from rattmmotor88 ebay seller for just $15.67 each one, shipping and hex screws included. Shipping was really fast (fedex), just eight days (I use to wait 30 to 50 days for items from china).
Packaging could be better; there are some scratches, but nothing you can’t fix with a file. Internal milling is great. External sanding finishing looks nice, but flatness is somewhat compromised; milling finishing for mounting surfaces would have been great. I don’t understand why they make motor recess 42mm diameter when it should be 38mm; anyway this is not a serious issue. Of course a critical parameter in these mounts is the space they add between motor and mount surface; 40mm in this case.
As this kind of mount allows a lot of play between leadscrew axis and motor axis, you should be careful every time you install X or Y motors, especially if you’ve got heavy motors and/or your couplings are “flexible type”.
Posted in All, CNC
Tagged new stuff, reviews