Quote Originally Posted by Neale View Post
What you are looking for is "linear power supply" as opposed to "switch mode power supply". Might help in a search. Commercially, the kind of thing you are looking for is "PS806-12 Linear power supply" from Zapp. I'm sure that you could build one for less, as already suggested, but the Zapp supply is the kind of specification that you need. I'm currently running an MDF router with one of these supplies, three SY60 motors, and M752 drivers. These drivers are old analogue boxes, now superseded by things like the AM882, but the combination is fine for this class of machine. The MDF structure can't take much more power anyway!
Thanks ! I've been struggling with this for a while. Are you sure that Zapp's will work ? It says it's 68V 6A. I think I would need something like 12A (=4.2A * 4 * .7) ?
I just checked and the M752 is very close to the AM882, but for $8 difference I think I'd rather go with AM882 :)
How heavy is your MDF machine, what is the area ? My gantry is a 1500 x 350 x 140mm torsion box (1 horizontal rib and 6 vertical ones) made from 22mm MDF. Approximated weight with Z and spindle is about 60kg. I think I overbuilt this haha.

Quote Originally Posted by JAZZCNC View Post
Mostly the reason why you'll struggle to find a full start to finish guide is for the legal side of things. Now with due respect to Mycnc Forum members, who are ALL obviously highly intelligent by the fact they joined, but I know there are still lots of Muppets out there who watch but don't fully read or take time to ask or understand what's involved but instead jump in with both feet eyes shut.!!
I understand 100%. But a disclaimer is enough to warn people, right ? Plus, it legally protects you from being held responsible of anything. Too bad that shops like Zapp's won't make those tutorials, since they commercially sell those things.

Quote Originally Posted by JAZZCNC View Post
So if you get no joy just ask and I'll gladly help but I won't post it here. PM me then just you, me and one other will read it.!!
That didn't fall on deaf ears ;) I will PM you some time this week. First need to finish my "stepper problem" thread :) Then will order BOB, AM882s, and motors. Maybe I'll ask Fred at BST Automation if he can get those for me.

Thanks to everyone for their kindness and the time they spent replying to me ! It's nice to see this lively community, that I will try my best to give back to when I get the opportunity.