Search found 2189 matches

by Gary Campbell
Thu Apr 25, 2024 4:05 pm
Forum: Centroid Acorn CNC Controller
Topic: Enable outputs on Acorn
Replies: 5
Views: 69

Re: Enable outputs on Acorn

Although the drives are enabled by default, I am looking to disable them when required
.

Can you explain when that would be?
by Gary Campbell
Thu Apr 25, 2024 4:03 pm
Forum: Centroid Acorn CNC Controller
Topic: Older Shopbot desktop build
Replies: 3
Views: 85

Re: Older Shopbot desktop build

The power supply is 48V as you remember. 6.7A I believe those Haydon Kerk motors draw 2 amps, so 6.7A on the PS should be good I will look into limit switch upgrades. Should be plenty of choices but if you have a known accurate/reliable recommendation I welcome it. I prefer proximity sensors. I wou...
by Gary Campbell
Wed Apr 24, 2024 9:07 pm
Forum: Buy, Sell, Trade
Topic: CNC Depot 4hp 12krpm 4 pole ATC Spindle
Replies: 0
Views: 305

CNC Depot 4hp 12krpm 4 pole ATC Spindle

Custom ordered in 2021, this 12,000 rpm four pole spindle is designed for milling metal and plastics, it has a drawbar sensor and encoder added as options. Coupled with an 800 htz Hitachi VFD and controlled via sensorless vector control it has great low rpm performance. Unit has 100-120 hours on it,...
by Gary Campbell
Wed Apr 24, 2024 5:43 pm
Forum: Centroid Acorn CNC Controller
Topic: Older Shopbot desktop build
Replies: 3
Views: 85

Re: Older Shopbot desktop build

Your project is more than doable. I have done a small format drilling machine with that exact combo and would suggest, that since you don't need, and therefore don't need to pay for, all of the IO features on the MX-4660. I would recommend the LeadShine DM-542E at $35 each ($140 total) rather than t...
by Gary Campbell
Sun Apr 21, 2024 12:57 am
Forum: Centroid Acorn CNC Controller
Topic: Losing connection with open loop steppers.
Replies: 6
Views: 155

Re: Losing connection with open loop steppers.

You should use 48vdc with those drives
by Gary Campbell
Sat Apr 20, 2024 5:49 pm
Forum: Centroid Acorn CNC Controller
Topic: Losing connection with open loop steppers.
Replies: 6
Views: 155

Re: Losing connection with open loop steppers.

What voltage is the power supply for the drives?

Set your step pulse to 100khtz. Those drives are not 200k
by Gary Campbell
Fri Apr 19, 2024 3:59 pm
Forum: Centroid Acorn CNC Controller
Topic: 2006 ShopBot PRT Alpha controller upgrade...
Replies: 9
Views: 300

Re: 2006 ShopBot PRT Alpha controller upgrade...

Gene... In theory what you wish to do is possible, but in reality, very difficult for the inexperienced. Here are the reasons: 1) Without gear reduction you would have a 0.318.. turns ratio. Far below what is required for Centroid. That direct drive alpha was so bad that SB traded them out for gearm...
by Gary Campbell
Fri Apr 19, 2024 10:38 am
Forum: Buy, Sell, Trade
Topic: Acorn ClearPath ATC Control for AVID, ShopBot, CAMaster
Replies: 0
Views: 872

Acorn ClearPath ATC Control for AVID, ShopBot, CAMaster

New for 2024, a modular designed control box which virtually eliminates the need for user connections inside the control box. Originally designed as a Teknic ClearPath upgrade controller for AVID & ShopBot owners, the use of AVID and CNC Depot compatible modular conventions adds the flexibility ...