Mach3 PEP5 settings

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Skotty58
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Joined: Sun Nov 13, 2016 6:26 pm

Mach3 PEP5 settings

Postby Skotty58 » Tue Dec 13, 2016 10:20 pm

Thought Id move this topic to here since Im using PEP5

Well at the settings you are telling me to use in regards to PEP5 are not working........

Ive increased the Velocity and Accel to get the best speed and the machine is moving along nicely. Ive also taken a photo and didn't do anything special to it and generated the G-Code and the whole image is just washed out. No detail at all as you can see in the photo below. The dithered photo starts to show something but is going to fast ( but I don't know that until I sped it up and saw the results). Once I slowed it down i start to see something.

My Current Mach3 settings are as follows:
X & Y 4000, 124.98, 50
PEP5 is: feed rate 90, .01 pixel (I tried the .006 and its worse and the image is too small), Left 45º engraving angle
Attachments
Screen Shot 2016-12-13 at 9.49.30 PM.jpg
Screen Shot 2016-12-13 at 9.49.30 PM.jpg (367.24 KiB) Viewed 4575 times
Screen Shot 2016-12-13 at 9.49.19 PM.jpg
Screen Shot 2016-12-13 at 9.49.19 PM.jpg (145.03 KiB) Viewed 4575 times
Screen Shot 2015-11-09 at 4.14.17 PM.jpg
Screen Shot 2015-11-09 at 4.14.17 PM.jpg (50.47 KiB) Viewed 4575 times

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Picengravertoo
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Re: Mach3 PEP5 settings

Postby Picengravertoo » Wed Dec 14, 2016 9:15 am

Looks like your laser is not focused as small as can be which causes overlapping burning with no detail. Post a snapshot of your PEP5 settings too. The dithered image engraving is burning in white areas where there should be no laser power.

If you use a Pixel Resolution other then .01, you need to resize the image in the editor set with the PR you are using. The instructions are on page 7 in the Tutorial.

Skotty58
Posts: 41
Joined: Sun Nov 13, 2016 6:26 pm

Re: Mach3 PEP5 settings

Postby Skotty58 » Wed Dec 14, 2016 10:29 am

Heres a pic of my DOT, but I have no way of measuring it.

The Picture is saved at .006 pixels and Ive since changed the angle on the beam to match the 45º motion.
Attachments
Screen Shot 2015-11-09 at 4.14.17 PM.jpg
Screen Shot 2015-11-09 at 4.14.17 PM.jpg (50.47 KiB) Viewed 4562 times
Screen Shot 2016-12-14 at 10.22.04 AM.jpg
Screen Shot 2016-12-14 at 10.22.04 AM.jpg (183.32 KiB) Viewed 4562 times
Screen Shot 2016-12-13 at 11.54.28 AM.jpg
Screen Shot 2016-12-13 at 11.54.28 AM.jpg (77.44 KiB) Viewed 4562 times

Skotty58
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Joined: Sun Nov 13, 2016 6:26 pm

Re: Mach3 PEP5 settings

Postby Skotty58 » Wed Dec 14, 2016 10:30 am

Oh and since the sample burning Ive also changed the settings in the Engraving options house the FRC and Extended edge, but I have not tried them yet

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Picengravertoo
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Re: Mach3 PEP5 settings

Postby Picengravertoo » Wed Dec 14, 2016 10:38 am

You need to increase the feedrate some for the Extended Edge. Your set feedrate is 90 IPM, so I don't recommend anything less then half (45IPM). It may cause some jarring going from 10 IPM to 90 IPM abruptly. Extend the Edge out a little further too. 15-20 Width in Pixels = .09"-.12".

Skotty58
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Joined: Sun Nov 13, 2016 6:26 pm

Re: Mach3 PEP5 settings

Postby Skotty58 » Wed Dec 14, 2016 10:48 am

Thank you for the quick reply,
Just to clarify something.. When editing an image and adjusting the size, what should the Pixel resolution be set at?
Im reading conflicting information and was told that it should be the same size as the laser dot about .006

Is that incorrect?

Skotty58
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Joined: Sun Nov 13, 2016 6:26 pm

Re: Mach3 PEP5 settings

Postby Skotty58 » Wed Dec 14, 2016 10:51 am

Ok I just took that image and raised the pixels up to .09 and resized it to a reasonable size and its all blurry.

And I've changed the pixel resolution in the Gcode setup to .09 and now the same image is 54x43 inches.. UUGH!!

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Picengravertoo
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Re: Mach3 PEP5 settings

Postby Picengravertoo » Wed Dec 14, 2016 11:01 am

You have to use the same Pixel Resolution in the editor for resizing as you do in the PEP5 settings, otherwise it will not engrave the size you want. The Pixel Resolution sets the stepover in the gcode. If your laser's focal point is .01 and you set a PR of .006, your laser's burn lines will overlap and cause what I'm seeing in your engravings.

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Re: Mach3 PEP5 settings

Postby Picengravertoo » Wed Dec 14, 2016 11:06 am

Why did you change the Pixel Resolution to .09?? I stated to set the Extended Edge Width in Pixels to 15 which equals .09 distance. You multiply the Pixel Resolution by the Width in Pixels to get the distance the laser beam extends past the engraving before it reverses directions. .006 X 15 = .09.

Skotty58
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Re: Mach3 PEP5 settings

Postby Skotty58 » Wed Dec 14, 2016 11:12 am

Sorry I misunderstood that


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