Search found 727 matches

by martyscncgarage
Sun Jan 14, 2018 8:00 pm
Forum: Centroid Acorn CNC Controller
Topic: Emco compact 8 Acorn Conversion progress
Replies: 19
Views: 410

Re: Emco compact 8 Acorn Conversion progress

frijoli wrote:
Sun Jan 14, 2018 7:24 pm
Steady as she goes. I do a little, then test, do a little...
I wish I had two weeks off work. I could finish this whole project. As it is I get about 4 hours on the weekends when I am not traveling.
WOW! Impressive! I hope you haven't forgotten anything! :shock:
by martyscncgarage
Sun Jan 14, 2018 6:52 pm
Forum: Centroid Acorn CNC Controller
Topic: Inrush current limiter?
Replies: 19
Views: 139

Re: Inrush current limiter?

Where did you get the toroidal supply? Came with no paperwork? If there is ZERO resistance something is open on the secondary side.....IF indeed you have the output correct. Picture please.... Came from a surplus outlet on the west coast recommended by Jerry Biehler (macona on HSM) & it was NIB. I ...
by martyscncgarage
Sun Jan 14, 2018 6:20 pm
Forum: Centroid Acorn CNC Controller
Topic: Inrush current limiter?
Replies: 19
Views: 139

Re: Inrush current limiter?

Mine has yellow, orange, gray & green. Resistance reading across the yellow/orange pair is 1ohm, gray/green is the same. I tied those pairs together, then the hot to one pair & neutral to the other. Plugged in the juice & no sparks, flames or blown fuse but there's no output. Does it matter which p...
by martyscncgarage
Sun Jan 14, 2018 5:16 pm
Forum: Centroid Acorn CNC Controller
Topic: Inrush current limiter?
Replies: 19
Views: 139

Re: Inrush current limiter?

Milton, All the Torroids that I have with 4 wires for the primary windings have two sets of the same colors. All of mine are red and black. For 110v (120) the reds go together for one pair and the blacks go together for the other pair. So the windings are wired in parallel! For 230 volt, the red an...
by martyscncgarage
Sun Jan 14, 2018 5:02 pm
Forum: Centroid Acorn CNC Controller
Topic: Acorn + Ajax AL-818 lathe
Replies: 12
Views: 130

Re: Acorn + Ajax AL-818 lathe

I think they will ok as well. You might wait until tomorrow see if Keith responds with the motor specs.
by martyscncgarage
Sun Jan 14, 2018 2:22 pm
Forum: Centroid Acorn CNC Controller
Topic: Inrush current limiter?
Replies: 19
Views: 139

Re: Inrush current limiter?

I have a 36V-16A toroid (wired for 110V input) for my mill's power supply. At the moment I have 2 x 100VDC-10000mfd caps and a 100V-30A rectifier. Is there a ballpark inrush current limiter value I can use? The data I found at "Google Engineering University" is way over my head so I'm hoping someon...
by martyscncgarage
Sun Jan 14, 2018 2:12 pm
Forum: Centroid Acorn CNC Controller
Topic: Acorn + Ajax AL-818 lathe
Replies: 12
Views: 130

Re: Acorn + Ajax AL-818 lathe

A few years ago I picked up an Ajax AL-818 lathe minus the servos & control system. It came with some aftermarket components like CNC4PC controller, Granite Devices drives, a Toroidal Transformer & PMDX Power Prep Module and 3 servos. The servos are a bit too big for this setup so I'm leaning towar...
by martyscncgarage
Sun Jan 14, 2018 2:05 pm
Forum: Centroid Acorn CNC Controller
Topic: HERCUS Mill Retrofit
Replies: 40
Views: 449

Re: HERCUS Mill Retrofit

Another step closer....now you have to mount that motor.....
by martyscncgarage
Sun Jan 14, 2018 8:13 am
Forum: Centroid Acorn CNC Controller
Topic: need help with new cnc set up
Replies: 10
Views: 337

Re: need help with new cnc set up

Progress and moving forward cautiously is good!
by martyscncgarage
Sat Jan 13, 2018 7:56 pm
Forum: Centroid Acorn CNC Controller
Topic: HERCUS Mill Retrofit
Replies: 40
Views: 449

Re: HERCUS Mill Retrofit

Okay Marty, so i tested the VFD as per your suggestion and have taken a photo. It works as expected. i used the one gnd to connect to the battery and the FWD & REV terminals. I tried a 1.5v & 9V battery and seems to scale nicely. IMG_0742.jpg So i have done up a wiring diagram. My only concern (not...