Search found 127 matches

by briuz
Mon Sep 20, 2021 5:29 pm
Forum: Centroid Acorn CNC Controller
Topic: Controlling Lathe turret as axis with stepper and no encoder
Replies: 4
Views: 1611

Re: Controlling Lathe turret as axis with stepper and no encoder

#4120 is the tool number With 400 steps per revolution and a 4:1 gear ratio, that would be 1,600 steps per revolution. Without any lock/unlock commands the idea is as follows: 1. Get the tool number from #4120 2. Calculate the position (angle) of the tool in degrees like: Angle = Tool * 45 3. G00 A[...
by briuz
Mon Sep 20, 2021 5:29 pm
Forum: Acorn CNC Tech Tips Knowledge Base, Look Here! before posting
Topic: Controlling Lathe turret as axis with stepper and no encoder
Replies: 4
Views: 2795

Re: Controlling Lathe turret as axis with stepper and no encoder

#4120 is the tool number With 400 steps per revolution and a 4:1 gear ratio, that would be 1,600 steps per revolution. Without any lock/unlock commands the idea is as follows: 1. Get the tool number from #4120 2. Calculate the position (angle) of the tool in degrees like: Angle = Tool * 45 3. G00 A[...
by briuz
Fri Sep 17, 2021 9:36 am
Forum: Centroid Acorn CNC Controller
Topic: Controlling Lathe turret as axis with stepper and no encoder
Replies: 4
Views: 1611

Re: Controlling Lathe turret as axis with stepper and no encoder

Here is the code I use to turn the turret on my Portable Collet Production Lathe that is under development. The "Raise Paw" and "Lower Pawl" sections would be replaced by the relays to lock or unlock the collet. (This code will change as the next version of my turret uses a locki...
by briuz
Fri Sep 17, 2021 9:36 am
Forum: Acorn CNC Tech Tips Knowledge Base, Look Here! before posting
Topic: Controlling Lathe turret as axis with stepper and no encoder
Replies: 4
Views: 2795

Re: Controlling Lathe turret as axis with stepper and no encoder

Here is the code I use to turn the turret on my Portable Collet Production Lathe that is under development. The "Raise Paw" and "Lower Pawl" sections would be replaced by the relays to lock or unlock the collet. (This code will change as the next version of my turret uses a locki...
by briuz
Fri Aug 27, 2021 2:32 pm
Forum: Centroid Acorn CNC Controller
Topic: 4th Axis?
Replies: 3
Views: 1397

Re: 4th Axis?

Sounds like a feature request! :mrgreen:
tblough wrote: Fri Aug 27, 2021 1:48 pm None of Centroids products will do gear hobbing yet. You can certainly use a 4th axis as a positioner when using a form cutter.
by briuz
Fri Aug 27, 2021 11:06 am
Forum: Centroid Acorn CNC Controller
Topic: 4th Axis?
Replies: 3
Views: 1397

Re: 4th Axis?

Without more information, we don't have much to go on. For gears I'd use a stepper motor controlled rotary table with a tail stock. I have 4 inch tables for the Sherline mills and a 6 inch table for the Tormach. As long as the stepper motor driver has step and direction connections (most, if not all...
by briuz
Thu Jun 17, 2021 8:43 pm
Forum: Centroid Acorn CNC Controller
Topic: VCP design - too much?
Replies: 7
Views: 2807

Re: VCP design - too much?

Looks good! Simple and nice layout.
by briuz
Thu Jun 10, 2021 12:23 pm
Forum: Centroid Acorn CNC Controller
Topic: Doesnt work with MACH3?
Replies: 38
Views: 11001

Re: Doesnt work with MACH3?

I've used Mach3 and I've used Acorn. While you don't need the Pro software to use Acorn, that $160 extra for the Pro software will be quickly forgotten after you use Acorn for a week.
by briuz
Tue May 25, 2021 9:09 am
Forum: Centroid Acorn CNC Controller
Topic: ACORN powered CNC Router with DIY ATC Spindle
Replies: 15
Views: 5609

Re: ACORN powered CNC Router with DIY ATC Spindle

Impressive! Very nice and well done! I look forward to seeing your future videos!

Brenden
by briuz
Mon Mar 29, 2021 11:50 am
Forum: Centroid Acorn CNC Controller
Topic: Hall Effect Sensor Compatable with Acorn
Replies: 3
Views: 1617

Re: Hall Effect Sensor Compatable with Acorn

Hello, I've used a U58821 successfully from Adafruit (https://www.adafruit.com/product/158) for a homing sensor for a turret. It's 3.5 to 24 vdc so should work fine at 5 vdc. I've also used a Digikey part 620-1830-1-ND successfully for a turret homing sensor for a 3.3 vdc circuit. (This is rated 2.8...