I stand corrected nite69, it appears that your work has been noticed and approved of by the Shapeways folks.by ManDrake - Casting and Moldmaking Working Group
Remember that Shapeways is an extension of the Makerbot Industries. They are against any effort to expand the Reprap project beyond the Makerbot.by ManDrake - Casting and Moldmaking Working Group
murd Wrote: ------------------------------------------------------- > Polyurethane is available, but not so > conveniently or cheaply. I've just got to take > more care over the catalyst proportion and mix and > fill faster, the stuff is plenty tough enough done > properly. For 20 bucks you can get enough Polyurethane resin to pour an entire set of Mendel parts with a 30% failuby ManDrake - Casting and Moldmaking Working Group
Murd great design! You should pick up some Polyurethane Resin from an arts supply store. Extremely simple to work with and will set up in 15 minutes. I'm using it to test all my molds because it's so quick and easy to mix.by ManDrake - Casting and Moldmaking Working Group
I'm in the process of a detailed survey of the Mendel parts right now. The molding process is actually more interesting than the printer for me at the moment. But that's because there are so many haters on this site of pouring technology, I feel like I have to implement it just to poke them in the eye. I upgraded Dr. Bowyer's original pouring plans to use a new kind of Urethane Plastic that's avaby ManDrake - Casting and Moldmaking Working Group
Would it be possible to get your Reprap to print a negative of a part to be used as a mold? You could pour the pieces in the negative minus all the holes, which could easily be drilled out after the fact.by ManDrake - Casting and Moldmaking Working Group
Thanks Dr. Bowyer's for helping out the community! Did you use a heated platform to make the larger pieces? They look awesome.by ManDrake - For Sale
I've never done anything but silicone molds, they use a simple spray to release from the molds. I think it's technical name is Dichloromonofluoroethane Dimethylmethane Butane. Here's the name brand I used, but I don't think it actually matters the brand.by ManDrake - Casting and Moldmaking Working Group
Can anyone just show up?by ManDrake - Baltimore/Wash. DC (and environs) RUG