Sunday, July 17, 2011

Integrated Parametric RepRap developments

I finally have had time to start working on my IPR project again.  I have a set of prototype parts printed out and have cut plywood sides and rods.

IPR main frame

Although I already have several things I want to change I plan to assemble it as much as possible before making any changes. I expect to assemble it a few times before working out all the bugs.  So far I like how it is coming together and think this is a good compromise between a Sell's Mendel and a Prusa Mendel (Although it has much more in common with the Sell's).

I bought some T-Rex 500 R/C helicopter gears that I was thinking of using for a new extruder design but I think the main gear may be larger than I want.  I have some R/C car gears on the way that should be closer to the size of the stock Wade's gears (they may even work on a stock body).

T-Rex 500 gears with Wade's gears
There are more pictures on Flicker

Thursday, July 7, 2011

A very big 3D printer

Extruder Drive
My friends at Metrix Create: Space have just completed the first major step in yet another very cool project.  They have converted an old CNC router table into a FDM 3D printer.
They are using a industrial shredder to convert old milk jugs into HDPE chips.  They are then fed into a hopper and a drill and auger bit push them into a custom extruder heater body.

While most RepRap sized printers use a 0.5mm nozzle this printer is using a 6mm nozzle.  This size is needed to have reasonable print speeds.  They initially plan to print a boat (for a milk carton derby?) and are looking for feedback on what they should print next.

I think 3D scans of people printed life size could be very cool.  Maybe this would be an interesting thing to print...