Search found 37 matches

by pburgh
Sat Oct 27, 2018 9:28 pm
Forum: Centroid Acorn CNC Controller
Topic: Help needed with PM-940m CNC VS conversion to the Acorn Controller
Replies: 78
Views: 27198

Re: Help needed with PM-940m CNC VS conversion to the Acorn Controller

Here are some screen caps of the diagrams and posts.
Hope this helps.
by pburgh
Sat Oct 27, 2018 9:18 pm
Forum: Centroid Acorn CNC Controller
Topic: Help needed with PM-940m CNC VS conversion to the Acorn Controller
Replies: 78
Views: 27198

Re: Help needed with PM-940m CNC VS conversion to the Acorn Controller

thanks for the link to those schematics.. had an interesting time registering to the hobby machinist but was successful. could not view the schematic it said I did not have permission.. So you can't see the posts on page 2? I don't think there is anything special about that post. Also, PZ is correc...
by pburgh
Sat Oct 27, 2018 8:31 pm
Forum: Centroid Acorn CNC Controller
Topic: Help needed with PM-940m CNC VS conversion to the Acorn Controller
Replies: 78
Views: 27198

Re: Help needed with PM-940m CNC VS conversion to the Acorn Controller

NcKarl, Do you have a PM-940 that you are experiencing the issue with? I had to wire my relays back in to make it work. RickwJenn was able to eliminate the relays by following Jake's diagram. Please see the following post: https://www.hobby-machinist.com/threads/pm-940m-cnc-vs-motion-controller-conv...
by pburgh
Fri Aug 17, 2018 8:34 am
Forum: Centroid Acorn CNC Controller
Topic: Passive Probe Issue
Replies: 9
Views: 2893

Re: Passive Probe Issue

Thanks for the feedback Marty. I appreciate it.
Regards,
Doug
by pburgh
Thu Aug 16, 2018 7:53 pm
Forum: Centroid Acorn CNC Controller
Topic: Spindle Encoder
Replies: 11
Views: 3984

Re: Spindle Encoder

In this scenario, i can go with either. I'm going to put a timing pulley on it so if there is a good shafted encoder i can go that direction, and if there is a good hollow shaft encoder i can adapt that too. The big thing to me now is if it will work with the higher RPM and if it will work well with...
by pburgh
Thu Aug 16, 2018 2:57 pm
Forum: Centroid Acorn CNC Controller
Topic: Spindle Encoder
Replies: 11
Views: 3984

Re: Spindle Encoder

I didn't talk to the folks at PM, but the guy that setup the bearing carrier did something similar to his. So, i'll see where it goes. The one thing that I need to do is be sure that i'm putting a decent encoder in place because i'm going to have to mount it in the head of the spindle once I take th...
by pburgh
Thu Aug 16, 2018 11:24 am
Forum: Centroid Acorn CNC Controller
Topic: Spindle Encoder
Replies: 11
Views: 3984

Re: Spindle Encoder

Thanks for the replies guys. I have the Variable speed version and not the 6 speed mill. I had a guy modify an extra bearing carrier that I had and he told me to try it with the bearings that are in there that they were good to around 6500 RPM. I'm also changing the motor and going to a belt drive. ...
by pburgh
Wed Aug 15, 2018 7:44 pm
Forum: Centroid Acorn CNC Controller
Topic: Spindle Encoder
Replies: 11
Views: 3984

Re: Spindle Encoder

Thanks Dave for the input. The one you bought from Centroid, is it the same one that they have listed in the accessory section of the AllInOne page? Or did you call in and have them suggest one?

Thanks again,
Doug
by pburgh
Wed Aug 15, 2018 5:10 pm
Forum: Centroid Acorn CNC Controller
Topic: Spindle Encoder
Replies: 11
Views: 3984

Spindle Encoder

Hi All, I'm looking to add a spindle encoder to my PM-940 machine with the Acorn. I'm figuring on using 2 timing pulleys/belt in this setup attached to the spindle. I'd like to get one that's decent, but isn't going to break the bank. My spindle will probably run between 6 to 7000 RPM. Can anyone re...
by pburgh
Wed Aug 15, 2018 5:01 pm
Forum: Centroid Acorn CNC Controller
Topic: Passive Probe Issue
Replies: 9
Views: 2893

Re: Passive Probe Issue

In Acorn I have Input 7 set to Probe Tripped NO and I have input 6 set to Probe Detect NO, but there is nothing connected to the input 6 terminal.
Attached is the Tormach doc for the probe. Pretty straight forward. Not much info.

Regards,
Doug