Search found 14 matches

by Accu-Slice
Mon Dec 18, 2023 10:36 pm
Forum: Centroid Acorn CNC Controller
Topic: Dmm Servo Spindle Motor High speed problem
Replies: 1
Views: 2810

Dmm Servo Spindle Motor High speed problem

I recently installed the DMM DYN4 - 1.3 KW servo motor as a spindle motor on my PM30 mill. For the most part it is working fine. The problem is that if it is operating at speeds over 2000 rpm and then is issued an M5 Stop command the servo controller faults with an over voltage error message. If I a...
by Accu-Slice
Wed Nov 15, 2023 2:56 am
Forum: Centroid Acorn CNC Controller
Topic: Using the DMM 1.8 KW Servo motor for a mill spindle
Replies: 1
Views: 305

Using the DMM 1.8 KW Servo motor for a mill spindle

I have been working on trying to hook up a DMM 1.8 KW Servo motor for use as a spindle motor on my PM30MV mill. The problem that I am currently seeing is that the servo motor is running constantly at around 150 rpm. I did change the OnPosRange to 111 and the MaxSpeed to 13 as suggested by DMM with n...
by Accu-Slice
Fri Oct 27, 2023 11:41 pm
Forum: Centroid Acorn CNC Controller
Topic: DMM servos, seeing 90 VAC on the noise filter case
Replies: 4
Views: 699

DMM servos, seeing 90 VAC on the noise filter case

I have been running the Acorn system using 3 DMM servos for my PM30 mill. I have been using the setup wiring as per DMM and Acorn directions. However, whenever I put a ground to the 1 amp noise filter the system faults. I measured for leaks and other voltages and what I discovered was a 90 VAC volta...
by Accu-Slice
Mon Jan 24, 2022 12:04 am
Forum: Centroid Acorn CNC Controller
Topic: Spindle Motor on PM-30MV Integration into Acorn
Replies: 21
Views: 4143

Spindle Motor on PM-30MV Integration into Acorn

I recently converted my PM-30MV mill to CNC. However, the spindle motor in not integrated into the Acorn software. It appears that there are three possible ways to integrate the spindle motor into the Acorn software. 1. Rewiring the PM spindle motor module as Franko did in a video series several yea...
by Accu-Slice
Sat Jan 22, 2022 8:34 pm
Forum: Centroid Acorn CNC Controller
Topic: Videos on CNC conversion of PM-30MV
Replies: 2
Views: 806

Videos on CNC conversion of PM-30MV

I just recently posted 3 videos on the CNC conversion of my Precision Mathews PM-30MV Mill. For this conversion I used the Centroid Acorn control board and software, the DMM model DYN4 Servos and the Arizona CNC ball screw conversion kit. The three YouTube videos are as follows: PM-30MV Mill CNC Con...
by Accu-Slice
Sat Jan 22, 2022 8:34 pm
Forum: Success Stories
Topic: Videos on CNC conversion of PM-30MV
Replies: 1
Views: 1626

Videos on CNC conversion of PM-30MV

I just recently posted 3 videos on the CNC conversion of my Precision Mathews PM-30MV Mill. For this conversion I used the Centroid Acorn control board and software, the DMM model DYN4 Servos and the Arizona CNC ball screw conversion kit. The three YouTube videos are as follows: PM-30MV Mill CNC Con...
by Accu-Slice
Tue Jan 11, 2022 2:44 pm
Forum: Centroid Acorn CNC Controller
Topic: Axis calibration
Replies: 2
Views: 943

Axis calibration

I just upgraded my PM30 to CNC. In running my first part it was out of calibration. I remember that Marty did a video on calibrating the axis. Anyone know which video this was?

Thanks.
by Accu-Slice
Sat Jan 01, 2022 9:01 pm
Forum: Centroid Acorn CNC Controller
Topic: Home All
Replies: 1
Views: 684

Home All

If you are using three switches (x, y & z) Home All switches, do you still need another set of three switches for Limit All? I thought that if you used the three switches (x, y, z) with Home All and the soft limits you should not need the Limit All switches.
by Accu-Slice
Tue Nov 09, 2021 1:29 am
Forum: Centroid Acorn CNC Controller
Topic: Trouble getting servo motor movement (DMM DYN4)
Replies: 37
Views: 9597

Re: Trouble getting servo motor movement (DMM DYN4)

Additional follow up: I turns out that the problem was the emi filter being grounded. The back panel on which everything is mounted for my case is metal, All the system components are screwed into this plate and therefore grounded. When I isolated the emi filter from the back plate, the system worke...
by Accu-Slice
Mon Nov 08, 2021 6:38 pm
Forum: Centroid Acorn CNC Controller
Topic: Trouble getting servo motor movement (DMM DYN4)
Replies: 37
Views: 9597

Re: Trouble getting servo motor movement (DMM DYN4)

Problem Solved. After reassembling the entire circuit and doing a systematic checking of all wiring and components, I discovered that the problem was with one of the EMI filters. Although it checked out with 0.3 ohm across each of the terminals, it was defective. When I bypassed it the system worked...