sliptonic wrote:But I'm still wondering whether using G1/G0 to control laser on/off wouldn't be safer, more intuitive, and more broadly compatible with different g-code generators than using the Z position.
sliptonic wrote:My bed is completely manual right now, but I can imagine adding a stepper to allow for automatic touch-off focusing and maybe stepping down to change the focus on multiple passes but HeeksCNC doesn't do anything beyond 3 axis control.
BenJackson wrote:Modelart wrote:Can you tell me how PP pins 14 and 17 are connected to PSU, for your setup?
Pin 14 ("PWM") goes to "input" in your diagram (labelled "IN" on my laser PSU). On Bart's board there's a jumper to select 14 vs 15.
Pin 17 ("laser-final") goes to TH I believe. That also happens on Bart's interface board so I'd have to double check, but I think TL is only the front panel test-fire button.
You can use the pot to set power and ignore pin 14 if you want. Bill French is doing that in his configuration. With PPI 100% power will be your usual choice (just reduced PPI) but you will still want to set it lower for things like paper.
For raster engraving you will need to turn the pot down because your laser probably can't move X fast enough to engrave at 100% power. For rastering you'll pick the highest X speed your laser is capable of and then set the depth of engraving with power.
Modelart wrote:i made a bad png file?, have you some png file to test?
bill.french wrote:Modelart wrote:i made a bad png file?, have you some png file to test?
It should genreate an "actual.png" file... look for that. It should be B&W and is what's actually engraved.
Modelart wrote:EDIT: i figure that this happens when z is negative, for z positive, doesnt fire at all, im lost....
Modelart wrote:yeah, thats strange, genterate actual.png file, 1x1px blank(empty file) aprox 73bytes. I surelly missed something
Modelart wrote:It needs to be in the directory where you start EMC
commit b00edf842f3df55d037a2d117ff4df14b2978cdc
Author: Ben Jackson <ben@ben.com>
Date: Wed Jan 4 22:17:51 2012 -0800
Add Tkinter GUI message boxes for M144 errors
Any configuration errors will result in an error dialog. Some
startup code has been cleaned up.
A new configuration [RASTER]IMAGE_PATH lets you specify where M144
should search for images. If the file cannot be found a warning
dialog will be shown followed by a file selector to choose an
alternate image.
commit 667dfe4c7159dcd5b7d4c95a1c205287fb484160
Author: Ben Jackson <ben@ben.com>
Date: Tue Jan 3 20:56:43 2012 -0800
Modify M144 for compatibility with [TRAJ]LINEAR_UNITS=inches configs
commit be80545e16fb526a106b3d572b00214c6b9ba90d
Author: Ben Jackson <ben@ben.com>
Date: Tue Jan 3 00:10:07 2012 -0800
Loop back the tool control signals so they are a no-op and M6
does not hang EMC.
Modelart wrote:Theres any way to change scans direction from x to y, for non 2.x laser machines. I know how to do it inside emc2 (ie changing axis), but a parameter inside the o145 routine call would be great.
sliptonic wrote:I got rastering working yesterday. Very very cool!. I had to uncomment the appropriate lines in the [FILTER] section of the .ini file.
If that's standard procedure, you might want to add a note in the README file.
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