Robots Everywhere Wiki
Now that the spambots have been defeated, on to the content! I know the layout of this page is terrible, but bear with me please.
If you have a request, please put it on the LCheapo Whiteboard page, so they are easy to group. In particular, let me know if you want a 24V adapter, a custom mount, have an urgency, or want direct international shipping.
You can see the holders being printed here: http://f3.to/pview.htm
http://robots-everywhere.com/re_wiki/images/listino%20laser.odt This is a preliminary datasheet.
Buying a L-Cheapo
If you want a L-Cheapo but did not contribute to the Indiegogo campaign, email me at email@example.com
Building a L-Cheapo
https://sites.google.com/site/dtrlpf/home/diodes/445-m140-didoes This is the laser diode I am using, from DTR-LPF.
https://sites.google.com/site/dtrlpf/home/diode-modules This is the optical enclosure, also from DTR-LPF.
DTR-LPF sells excellent diodes and optics, but you can NOT use their driver circuit for the L-Cheapo! You need something a little beefier, like my driver, the schematic of which you can find here.
The bill of materials is here and includes the heatsink and fan.
You will need to drill through the heatsink -- you can do that by hand, or print a jig for a drill press or drill guide for a better cut. It's very important that the laser module fit snugly into the heatsink, for good thermal conductivity. Apply thermal paste liberally! Some of the pictures don't have thermal paste, that's just to show where everything goes -- you want the paste to be there when you run the laser. https://www.youtube.com/watch?v=1olPQ63jgbc Video of the jig here.
http://www.thingiverse.com/thing:354453 This is the plastic part, in both Solidoodle and generic versions; designs for other printers will come as I make them. It is intended to be printed all-in-one, no gluing necessary. The kickstand is also included. I recommend printing in PLA, since it's a bit more rigid. This also includes the jig.
The LCheapoAssembly page shows you how to put it all together. Fan placement is important!
Setting up a L-Cheapo
Running a L-Cheapo
You can use your existing 3D printing software!
I draw the object in Sketchup and then use the "push" command to raise it to the height I want, then export to STL and slice normally. Be sure that your start/end gcode sets the Z axis to the proper focal length!
You can find my Skeinforge profiles here: http://f3.to/re_wiki/images/solidoodle%20skeinforge%20profiles.zip
BY OPERATING A L-CHEAPO LASER, WHETHER BOUGHT AS A KIT OR BUILT FROM PLANS, YOU AGREE AND ACCEPT:
-You are old enough to vote in your country of citizenship.
-You know the potential hazards in using high power lasers.
-You will wear professional laser-eye-protection when operating the laser.
-You will use this device in a legal and safe manner.
-You relieve the seller from any liability arising from the sale or use of this component /device / item.
-You will NEVER use / run this device outside of a CNC tool, or in front of crowds / bystanders.
-All items are made on REQUEST, so no refunds OR warranty given. However, we will work with you to replace DOA components.
Special thanks to Emily for teaching me how to roll out a product, and providing the seed money!
A big thank you to our early funders: Riley August, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com