Messages

8721

General Mach Discussion / Re: BOARD PROBLEM HELP REQUIRED

« on: March 12, 2009, 03:34:27 AM »

Hi Stephen,

It sounds obvious but recheck that you have the Z Axis stepper coils connected correctly.

Tweakie.

8722

Show"N"Tell ( What you have made with your CNC machine.) / Re: Building a 4th Axis from scratch.

« on: March 11, 2009, 08:57:50 AM »

Well that's it - the mechanicals are all complete now, it just leaves the electricals to be sorted.

Tweakie.

8723

General Mach Discussion / Re: Can "Direction" &"Steps" signals be saved and stored in physical "memory"?

« on: March 11, 2009, 03:21:36 AM »

Hi Richard,

Would be nice wouldn't it - but as Jim has just implied saving 60k of pulses for every inch of movement for each axis you would need one big ROM.

Tweakie.

8724

General Mach Discussion / Re: Help with verify button

« on: March 10, 2009, 01:44:00 PM »

Hi Ron,

I would also check that there is no binding or tight spots on your X Axis slides and leadscrew. This could cause lost steps and the stepped sides to the milling pattern that you mention.

Tweakie.

8725

General Mach Discussion / Re: Strange Problem

« on: March 10, 2009, 01:34:46 PM »

I would suggest that you check the LPT connection between your computer and machine. A broken / intermittent connection on the Y axis step pin (whichever one you have chosen) could possibly cause this problem.

Tweakie.

8726

Tangent Corner / Re: Metal shredder

« on: March 10, 2009, 11:51:43 AM »

Wow ! - don't want to let your CNC anywhere near that.

Tweakie.

8727

Show"N"Tell ( Your Machines) / Re: CNC watch lathe

« on: March 10, 2009, 10:10:56 AM »

Nice work Vince.

Tweakie.

8728

Show"N"Tell ( What you have made with your CNC machine.) / Re: Building a 4th Axis from scratch.

« on: March 10, 2009, 10:00:29 AM »

I haven't the faintest idea how to set up Mach to drive a fourth axis yet. There are plenty of posts on this subject (i've checked already) so I will have to do a lot of reading before I can make anything.

Tweakie.

8729

Show"N"Tell ( What you have made with your CNC machine.) / Re: Building a 4th Axis from scratch.

« on: March 10, 2009, 09:23:33 AM »

Just finished making the stepper motor mounting this morning - can't wait to try it out but I have to do a bit more electronics to extend my driver card to include a fourth axis driver.
Fortunately, I have a stepper test rig so I can run it on the bench just to make sure there are no tight spots and that the stepper has enough torque.

Here are a couple more pictures.

Tweakie.

8730

General Mach Discussion / Re: Newbie needs help

« on: March 10, 2009, 09:12:15 AM »

Gerald,

Please don't forget to post some pictures of the stuff you make.

Tweakie.