Our lovely build platforms for Noisebridge’s RepRaps George and Gracie have been completed. Each one was made using a piece of poorly cut 3/8″ acrylic, and two layers of 1/8″ Plywood, laser cut to size. The holes for all three parts of each platform were also laser cut. For vitamins, I used four M3x16 Socket Cap bolts, and three M3 Nuts per bolt separating each part of the platform.
Hey laser cutting people: I have discovered excellent settings for laser cutting 1/8″ plywood. Regulate the current to just a pinch under 15mA and use the following settings:
3 Passes / 18.75% Speed / 100% power.
The reduced speed (25% to 18.75% – a 25% reduction) seems to account for the needed power, while the reduced number of passes (also a 25% and thus proportional reduction) reduces the excess char that is produced by the laser.
I’m going to be borrowing one of our Cupcake CNC’s over thanksgiving weekend to make a ton of prints. If all goes well, I’ll bring it back on Sunday with at least two sets of Prusa RPs printed, along with some spools and other goodies if time and materials permit. Awesomeness shall ensue.
Also, feast your eyes on two new Replicators to this world! one of them, currently just a concept/in early stages of design and development could be the successor to the Prusa Mendel, and the other could be the first real “RepRap for the rest of us” type thing.
Gobble Gobble! Go forth and replicate!
Fantastic day at Replicator Wednesday, although unproductive, for the power was reset while I was printing prusa parts, and I lost the print. However, this is why PLA is so wonderful. When I was done swearing, I could simply toss the PLA garbage in the Blue recycling bin as a category 7.
A word to the wise: If you wanna learn CAD, DO NOT START WITH GOOGLE SKETCHUP. I’m a recovering SketchUp user, and am now learning PTC Creo. At the very least, I can export to .stl (and all the other things as well)
We made a giant fastener. We used the laser cutter. More fun shall ensue…
Hello, all. I’m Elijah, and I work with NoiseRep, or in other words: The folks who futz around with and build the 3D Printers.
I myself am helping to build George and Gracie. They are not from television from ages past, nor are they whales from Star Trek IV (Although if you do research about that movie you’ll see why they kind of are related to those whales). They are the names of the two new RepRap Prusa Mendels that I, Miloh, and Andrew are working on bringing into this world.
I’ll have updates thereof, as well as updates from our regularly scheduled event, Replicator Wednesday. By the way, y’all should all go to that. It runs on Wednesdays from 1700 to 2200. There, you can learn about and how to do 3D printing.
Say, why not an update now? As it stands, the frames of both Prusas are tightened up, and we are building up the Y-Stages. I’ll run along and buy some plywood and bring it in on Wednesday (2 November). We had some acrylic, but cutting it (with a jig-saw) didn’t go so well.
Miloh has our ten NEMA-17 stepper motors needed for the two machines. It’s getting exciting because we pretty much have everything we need to assemble the machines.
Anyway, that which does not get finished on Wednesdays, I try to finish on Sundays if I’m not already busy. Hopefully the machines will be done in a few weeks.
That’s all for now. I shall attempt to make an update at least one weekly, but I’m very busy at this time.