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Posted · UM2E+ mod for laser engraving

I recently added a 10-Watt laser to my UM2E+ printer. I also have a UM3E printer, which I used to print parts to do this. I have carefully enclosed the printer, ventilated it to outside, added OD3+ door and window for safety, coupled with wearing OD3+ goggles. I've attached a photo of the setup. It functions re asonably well, using both Inkscape and T2Laser software packages. What I would very much appreciate help with now has to do with the printer firmware. I see various comments about firmware mods for related purposes in the community, but I have no experience at all with the software packages mentioned. The particular items that would be most valuable are, first of all, a disabling of the firmware command causing the printer to home the head after each print job. That is no longer possible with the laser attached, since the laser mount would hit the wall just before it gets to the home position. What I do now is simply switch off the printer when it starts to head home. Other items would include the automatic "kickstart" for the fans, I'm using the fan control to provide the control of the laser power. The extra "flashes" when it goes up from zero are not desired. What would perhaps be most useful of all, though, would be the ability to see and control the X, Y, and Z values from the  menu and to set the the X, Y, and Z limits that now exist because of the presence of the laser. I will be very interested in any comments or suggestions as to how I should proceed.Laser-equipped UM2E+

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