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Author Topic: Cnc Id od and thread grinder  (Read 984 times)

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Cnc Id od and thread grinder
« on: July 24, 2019, 02:33:42 PM »
Well started on a project to build a small Id od grinder. Almost all the pieces are in and had a few set backs. I'm includingapic of some of the initial electronics.  I'll have some questions soon but wish me luck.

Offline Tweakie.CNC

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Re: Cnc Id od and thread grinder
« Reply #1 on: July 25, 2019, 01:12:52 AM »
Hi Mark,

I am looking forward to following your build project - all looks good so far  :)

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.
Re: Cnc Id od and thread grinder
« Reply #2 on: July 25, 2019, 08:04:23 AM »
Just got the cross slide in last night.  Today I'm measuring and designing the adapter plates and mounts and figuring out heights for the main axis.  1 question I am planning on using a stepper for the spindle ( Low rpm)  and a y axis for the thread grinding. Is there a way to config mach that way. 1 time keep turning 2nd move proportionally to the z axis. ( the 2nd I can do with gcode easy enough).
Re: Cnc Id od and thread grinder
« Reply #3 on: July 25, 2019, 08:09:26 AM »
100mm linear axis

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Re: Cnc Id od and thread grinder
« Reply #4 on: July 26, 2019, 01:19:39 AM »
Quote
1 question I am planning on using a stepper for the spindle ( Low rpm)  and a y axis for the thread grinding. Is there a way to config mach that way. 1 time keep turning 2nd move proportionally to the z axis. ( the 2nd I can do with gcode easy enough).

I am not sure I fully understand this ?

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.
Re: Cnc Id od and thread grinder
« Reply #5 on: July 26, 2019, 01:50:39 AM »
When I am grinding the od.  I want the steeper to just rotate at a rpm. When i go to grind in the threading want to be able to control rotation like threading on a lathe. Slow rpm and directly proportional to movement in the z axis

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Re: Cnc Id od and thread grinder
« Reply #6 on: July 26, 2019, 03:00:14 AM »
Yes it could be done where the work rotation is essentially a Rotary Axis.

Are you planning on Mach3 or Mach4 ?

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.
Re: Cnc Id od and thread grinder
« Reply #7 on: July 26, 2019, 03:26:43 AM »
Probably 4 seems more adaptable
Re: Cnc Id od and thread grinder
« Reply #8 on: July 29, 2019, 06:43:10 PM »
Made the plate to mount the x axis to the z axis.  Had to get metric access for the pillow blocks (linear bearings) damn they cost.  Thank God I'll be able to use imperial feathers for most of the rest.  I'll post a  pic tomorrow. It's still at work right now.
Re: Cnc Id od and thread grinder
« Reply #9 on: August 01, 2019, 08:45:26 AM »
Opps just reread it metric screws and imperial threads.  Oh well here is the latest pic. Base plate is next on the list.
« Last Edit: August 01, 2019, 10:26:29 AM by Tweakie.CNC »