We have got a lot of people wanting to upgrade the Replicator 1 and its plethora of clones with our laser kits. Customers have done this already, but we have been so busy that we have not gotten the instructions out! Wait no longer, here it is!
Connecting the Laser
This will work with up to version E of the makerbot mightyboard that was shipped open source. The mightyboard has an EXTRA FET for use on the board. On versions of this board that are shipped from Makerbot the FET is there, but check if you are buying from a third party. We are going to use this to turn on and off the laser.
The location on the board for this is shown in the following picture:
Connect the “+” pin to the laser driver header H2 “+” terminal and the “-” pin to the laser driver H2 “-” terminal.
Turning it ON and Off with G Code
To turn the laser on and off in your program use the following G Code:
- M126 (Laser ON)
- M127 (Laser OFF)
Of course part of the fun is figuring out how to mount the laser to the machine. Some people have already done some mounts for their builds and shared them. For the clones of the Replicator with 2 extruders, one customer has milled out the middle of the two extruders and placed the Laser between them to maximize the cutting area. The file is here: http://www.thingiverse.com/thing:472126/#files
Another mount for the Flashforge printer is here as a replacement for the left extruder. Thanks to our customer for this: http://www.thingiverse.com/thing:607867 .
We now have laser shielding to fit these larger rectangular printers! Click HERE to check it out.
Remember Safety First!
The laser used in this project is very powerful and all safety precautions must be taken. Use proper safety eyewear to prevent injury to eyes. This is a project and J Tech Photonics, Inc. is not responsible or liable for any and all damage or injury caused to people or property. The use of these instructions to make a laser cutter is under your own discretion and all safety precautions should be followed. J Tech Photonics, Inc. is not affiliated in any way with Makerbot and they may change hardware and software at any time making these instructions invalid.