Search found 669 matches

by Dave_C
Mon Nov 27, 2017 9:09 pm
Forum: Centroid Acorn CNC Controller
Topic: Grizzly G0678 - 8" x 30" Variable-Speed Vertical Mill CNC Conversion
Replies: 18
Views: 7861

Re: Grizzly G0678 - 8" x 30" Variable-Speed Vertical Mill CNC Conversion

I appreciate the feedback on the Metric ball screws. I've been reading the Centroid Manual and I think I can see how to set it all up. I did some math for the 5mm lead so I could see what I needed to enter in the table for "motor turns per inch".

Dave C.
by Dave_C
Sat Nov 25, 2017 4:33 pm
Forum: Centroid Acorn CNC Controller
Topic: G0678 CNC Conversion Thread
Replies: 206
Views: 56758

Re: G0678 CNC Conversion Thread

Centroid Acorn! I've been a fan of Centorid for years, I've just never had the privilege of owning one or using one. I've watched lots of videos from CNC Keith! I actually have a nephew who runs 6 Atrump machines that have Centroid Controllers and he loves them. In fact just last night we started a ...
by Dave_C
Fri Nov 24, 2017 3:54 pm
Forum: Centroid Acorn CNC Controller
Topic: G0678 CNC Conversion Thread
Replies: 206
Views: 56758

G0678 CNC Conversion Thread

I bit the bullet today and bought the Grizzly G0678 mill to do my Centroid Acorn conversion! I'll share the build pics on this thread for anyone interested in doing the same project or something similar. In this case you need a mill to make mill parts and I already have a mill with good reliable DRO...
by Dave_C
Wed Nov 22, 2017 7:22 pm
Forum: Centroid Acorn CNC Controller
Topic: Grizzly G0678 - 8" x 30" Variable-Speed Vertical Mill CNC Conversion
Replies: 18
Views: 7861

Re: Grizzly G0678 - 8" x 30" Variable-Speed Vertical Mill CNC Conversion

I just stopped by the Missouri Grizzly warehouse yesterday and they have been out of the G0678 Mill for a bit. They have 5 on back order already and say they have 13 on order, expected delivery about the 2nd week of December. So maybe I will go ahead and get one so I can start on this conversion. In...
by Dave_C
Sat Nov 18, 2017 9:50 am
Forum: Centroid Acorn CNC Controller
Topic: Benefits of Clearpath servos?
Replies: 18
Views: 7869

Re: Benefits of Clearpath servos?

All, I am using these closed loop steppers mentioned in the above post AKA "Hybrid Servos" and they are quite nice. I have the 1200 Oz In version on a G4003G conversion (12X36 Lathe) and they are smooth as silk and never miss a step. Right now you can buy them for $250 each! I paid the $50...
by Dave_C
Fri Nov 17, 2017 3:46 pm
Forum: Centroid Acorn CNC Controller
Topic: One PC for multiple Acorns?
Replies: 25
Views: 10305

Re: One PC for multiple Acorns?

I get that running one PC for one lath and two Mills is going to be a challenge but, Is it as much of a challenge to use one PC for 1 lathe and just 1 mill. For example, I have a rolling stand for the computer, monitor, keyboard and mouse in my small shop space and I would like to not have two of th...
by Dave_C
Fri Nov 17, 2017 3:25 pm
Forum: Centroid Acorn CNC Controller
Topic: Gear ranges
Replies: 13
Views: 5698

Re: Gear ranges

Marty, Nope, I have a 2 HP 3 phase motor with a 2HP VFD. So I'm good with just using three of the gear ranges as that is about all I use now! I see no reason to complicate the issue now that I have read the above post. I could still use the spindle manually if there was something that did not fit in...
by Dave_C
Thu Nov 16, 2017 8:11 pm
Forum: Centroid Acorn CNC Controller
Topic: Gear ranges
Replies: 13
Views: 5698

Gear ranges

I've just printed out the Centroid manual before I attempt to convert my very successful Lathe conversion from Mach 3 to an Acorn setup. Here is my question: How does the Centroid software account for the fact that I have 9 gear ranges to choose from? I use the 1,000 RPM range the most but I have 1,...
by Dave_C
Wed Nov 15, 2017 8:52 pm
Forum: Centroid Acorn CNC Controller
Topic: Grizzly G0678 - 8" x 30" Variable-Speed Vertical Mill CNC Conversion
Replies: 18
Views: 7861

Re: Grizzly G0678 - 8" x 30" Variable-Speed Vertical Mill CNC Conversion

Franco, I'm thinking about doing a G0678 Grizzly Mill as well! Like you, I've looked at all sorts of mill types and sizes and I keep coming back to this mill. I like it for all the same reasons you listed and some you didn't list like the fact that it has a one shot oil system and a hardened table w...