Messages

201

General Mach Discussion / Re: Interested in Low Power Laser Engraving

« on: March 05, 2013, 05:27:42 PM »

Nick,

Look here to see where we are with the art today.

http://hobbycncart.com/forum/63-151-25

Please join the forum.  It's Hungarian, but we have an English section, and Google translate takes care of the rest.

It is easy to get started, but does take a little investment.

Regards,
John Champlain

202

Screen designer tips and tutorials / Re: CLOCK TIME DRO

« on: February 27, 2013, 08:45:47 PM »

And you can't use the time display in Windows taskbar?  Seems odd, to me (no offense), to duplicate it.
John Champlain

203

General Mach Discussion / Re: Scale Problem?

« on: February 26, 2013, 02:10:05 PM »

Jim,
Sorry, but I'm out of suggestions/thoughts other than trying a reload of Mach3.  Perhaps one of the power users here will step in with help.

Good Luck,
John Champlain

204

General Mach Discussion / Re: Scale Problem?

« on: February 25, 2013, 09:39:19 PM »

Jim,

X too large, Y too small.  Seems odd.  What is your backlash?

John Champlain

205

General Mach Discussion / Re: Scale Problem?

« on: February 25, 2013, 09:40:04 AM »

Jim,
If just the X, and only sometimes, you may just be operating at the ragged edge of your steppers ability.  Not knowing more about your part or machine, I recommend that you try lowering the velocity and aceleration by 25% (or any % you choose) to see if the problem goes away.

John Champlain

206

General Mach Discussion / Re: Very odd rapids stepper motor stalling problem

« on: February 23, 2013, 12:14:40 PM »

I've experienced a similar (same) issue, but thought it was my controls.  Try changing the G0s to G1s to see if the problems goes away.  I've not had another recurrence since eliminating G0s in my code.

I first experienced this issue when I switched to the later versions of M3 (.058+ ?) so I could use M10/M11 commands with my laser diode machine.

I do believe it is a Mach3 bug.

John Champlain

207

Show"N"Tell ( What you have made with your CNC machine.) / Re: Mirror Lasering With Shades

« on: February 20, 2013, 11:42:24 PM »

Thanks Jeff,
I used .007" resolution at 35ipm, max. power, and laser output setting.  I was also careful to not wipe off the burn residue before spraying on a light coat of clear lacquer.

I think a lot depends on the original image.  I'm still trying to get a handle on that aspect; I just don't post my failures 

John

208

Show"N"Tell ( What you have made with your CNC machine.) / Re: Mirror Lasering With Shades

« on: February 20, 2013, 01:20:05 PM »

Used the artist canvas that Jeff discovered to laser this one.  Clear lacquer spray for protection.  Size 6 x 8 inches.

Thanks Jeff.

209

General Mach Discussion / Re: mach 3 help/ machine build?

« on: February 19, 2013, 03:58:04 PM »

Andy,
You may also want to get a breakout board designed to plugin to the SS.  CNC4PC is a good one to look at.  There may be others, but I like my C25 from CNC4PC.com.

Regards,
John Champlain.

210

Share Your GCode / Re: How to speed up simple G Code

« on: February 13, 2013, 01:11:07 PM »

Thanks Jack,
The many ways in which Mach3 can be (is) used never ceases to amaze me.
John Champlain