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Messages - Tweakie.CNC

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281
General Mach Discussion / Re: Engraving problems
« on: April 02, 2020, 06:03:35 AM »
Your Gcode files ran correctly here without any sloping of the sides.

Interesting that you have the feed-rate set at 12,000 mm/min which an axis would not achieve over such a short distance as the zig-zag path. When I set the correct laser power for maximum velocity on the long strokes over-burn was created on the zig-zag. This results in pretty poor engraving results as can be seen in my pic. and it is really not the correct way to laser engrave anything.

I think you need to create a better toolpath and run at a modest feed-rate and see what results you get then. Something else worth trying (and this may correct your sloping sides) is changing your Ports & Pins / Motor Outputs / Step Low Active to Active Low (tick) for the X, A and Y axis.

Tweakie.


282
General Mach Discussion / Re: Engraving problems
« on: April 02, 2020, 01:09:12 AM »
If you .zip and attach the zig-zag Gcode file that is causing you problems I will run it here to see if the problem persists. Also attach your <your profile>.xml file (Mach3 folder (typically Mach3Mill.xml)) then I can check your settings to see if anything there is causing an issue. You need to rename the .xml file to hardus.xml before it can be attached (all files / attachments posted to the forum need a unique name).

Tweakie.

283
General Mach Discussion / Re: Engraving problems
« on: April 01, 2020, 09:55:21 AM »
You settings seem quite modest so the only other thing that I can suggest is that you look for some sort of mechanical slippage on your X Axis drive chain.

284
General Mach Discussion / Re: Engraving problems
« on: April 01, 2020, 06:27:40 AM »
What are your Velocity and Acceleration settings for each axis ?

285
General Mach Discussion / Re: Using a PWM controlled laser
« on: April 01, 2020, 05:23:12 AM »
This post details my solution;  https://www.machsupport.com/forum/index.php?topic=12444.msg265104#msg265104

Perhaps other posts in the same thread may be of interest to you.

Tweakie.

287
General Mach Discussion / Re: Engraving problems
« on: April 01, 2020, 05:16:33 AM »
My guess is that you are loosing steps - try reducing Velocity and Acceleration in motor tuning and save the changes.

288
General Mach Discussion / Re: Hall of shame
« on: March 30, 2020, 06:21:01 AM »
In an earlier post I mentioned how FasterCNC started trading as DDream
( https://www.machsupport.com/forum/index.php?topic=24331.msg236818#msg236818 )
this pic. (showing their own, in house, Pirate license usage) was taken from their current DDream EC300 and EC500 product manuals.

Tweakie.

289
General Mach Discussion / Re: mach 3 problem
« on: March 29, 2020, 06:50:26 AM »
Just a tip but IMO it is better to use a dedicated PC just for running Mach and have all your CAD/CAM, etc. on another computer.

Tweakie.

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