Search found 181 matches
- Fri Jul 17, 2020 8:26 am
- Forum: Centroid Acorn CNC Controller
- Topic: Acorn Carousel Tool Changer
- Replies: 45
- Views: 19977
Re: Acorn Carousel Tool Changer
No problem. I started with a 23 frame motor but with the carousel loaded with tools it was on the edge of loosing steps. I upgrade to a 34 frame closed loop stepper with a 3:1 reduction & haven't had a problem since. If you want some more info on my setup you can see it here; https://centroidcnc...
- Fri Jul 17, 2020 12:12 am
- Forum: Centroid Acorn CNC Controller
- Topic: Acorn Carousel Tool Changer
- Replies: 45
- Views: 19977
Re: Acorn Carousel Tool Changer
I used the reduction ratio to increase torque of the stepper. This reduced the jerk in start stop motion. As you can imagine the moment of inertia of a full carousel is significant. I have since upgraded to a larger frame stepper. I would imagine that with a DMM servo you will need to step down sign...
- Mon Jun 22, 2020 5:20 am
- Forum: Centroid Acorn CNC Controller
- Topic: Ether 1616 controlled Stepper
- Replies: 28
- Views: 12439
Re: Ether 1616 controlled Stepper
I used a generic leadshine style closed loop stepper for the carousel & a Velocio ACE PLC to generate the pulses for the stepper.
The PLC file is on page 2 of this thread & the M6 macro on page 3.
If you break down the steps required a toolchanger is not too difficult.
Regards,
Michael
The PLC file is on page 2 of this thread & the M6 macro on page 3.
If you break down the steps required a toolchanger is not too difficult.
Regards,
Michael
- Mon Jun 22, 2020 12:36 am
- Forum: Centroid Acorn CNC Controller
- Topic: Umbrella ATC Guidance
- Replies: 11
- Views: 4422
Re: Umbrella ATC Guidance
I have done an ATC both ways, using the A Axis & stepper is by far the easiest. Converted to Ether1616 control to allow use of A-Axis for future use. Both setups listed below with macros attached. A-Axis https://centroidcncforum.com/viewtopic.php?f=60&t=3172 Ether1616 https://centroidcncforu...
- Thu May 07, 2020 10:22 pm
- Forum: Centroid Acorn CNC Controller
- Topic: cnc barrel rifling machine
- Replies: 5
- Views: 3528
Re: cnc barrel rifling machine
Could this be done with the spindle indexed with an encoder & cut in a similar fashion to a single point internal thread?
Just a matter of generating G code for the rifling pitch.
Just a matter of generating G code for the rifling pitch.
- Thu Apr 09, 2020 3:12 am
- Forum: Centroid Acorn CNC Controller
- Topic: Ether 1616 controlled Stepper
- Replies: 28
- Views: 12439
Re: Ether 1616 controlled Stepper
Ok a quick update as this social isolating has allowed me to get back into the shed. Have worked out the logic to control carousel through the Ether1616. Using a cheap PLC (Velocio) to interface to E1616 with 4 bit logic for positioning with two other bits to activate move & signal move complete...
- Tue Apr 07, 2020 2:51 am
- Forum: Centroid Acorn CNC Controller
- Topic: Spindle Fan M Code
- Replies: 15
- Views: 5835
Re: Spindle Fan M Code
Thanks CNCNW,
Found that the m94 /31, m95 /31 will turn cooling fan on & off when assigned in wizard.
Possibly include a run on timer and/or a thermo switch as Marty suggests.
Regards,
Michael
Found that the m94 /31, m95 /31 will turn cooling fan on & off when assigned in wizard.
Possibly include a run on timer and/or a thermo switch as Marty suggests.
Regards,
Michael
- Mon Apr 06, 2020 8:34 am
- Forum: Centroid Acorn CNC Controller
- Topic: Spindle Fan M Code
- Replies: 15
- Views: 5835
Spindle Fan M Code
As the title say's, is there a standard spindle cooling fan M Code. I have assigned the fan to an Output (output 1 currently, also assigned in the wizard) & would like to turn the fan on or off with a command. Also is there a way to have the fan run time controlled by Acorn PLC is is it best don...
- Sat Mar 07, 2020 8:54 pm
- Forum: Centroid Acorn CNC Controller
- Topic: Z axis accumulating negative error (Resolved)
- Replies: 12
- Views: 6361
Re: Z axis accumulating negative error
Slodat, I had the exact same issues as you & ended up running via the DB25 port with differential drivers. I found this this to be most repeatable. I am also currently testing CNC4PC C86 board with some success but still early at this time, however it needs 12v supply. Even though its supposedly...
- Mon Feb 24, 2020 12:41 am
- Forum: Centroid Acorn CNC Controller
- Topic: Control Panel
- Replies: 4
- Views: 2652
Re: Control Panel
I don't think there is really such a thing as too big. To get decent cable control & ventilation space around your drives you will use all of it. Potentially you could have up to 6 drives in the cabinet with 4 axis, spindle & toolchanger. The extra depth of the one you listed would be handy ...