From John:

Where John MakerBots, etc.

Check out this nice array of machines. On his blog, John writes that the Prusa Mendel (left) and the Tantillus (right) are both using parts made with his Thing-O-Matic. That’s a family photo if I’ve ever seen one! Thanks for sharing, John.

Prusa Mendel Cupcake production files by kliment

A “printing plate,” sometimes referred to as a “production plate,” is the practice of organizing the pieces of a multi-part print so that several parts will fit onto a build area.  They help streamline printing and production by reducing the number of separate printing tasks.  Organizing your multi-part print onto plates is a relatively easy design trick for improving your speed of production.  Here are a few tips in case you’re doing this:

• Draw a square or rectangle the shape of your build platform into the design.  Try to organize your parts onto that square¹ and delete the square when done. ²
• Start by placing the largest piece onto a square, then adding the largest piece you can manage to the plate.  Add as many little pieces as you can around the larger parts.
• If you are printing slot-together parts, you can safely mirror or flip the pieces.  Once printed, they’ll be functionally identical whether they were printed face-up or face-down.
• Packing parts together can actually reduce warping and curling.  You may find that the extra parts will either provide apron-like mechanical advantages by holding down corners or thermal walls.
• If certain parts need to be printed multiple times, put them with other parts that need to be printed multiple times.  In the case of Dino-Girl’s spidersaur, it has two different kinds of legs – four identical long legs and four identical shorter legs.  It also had a body panel and a fang part that needed to be printed twice each.  I created one plate with a long leg, a short leg, and the body panel and another plate with a long leg, short leg, and the fang part.  If you print each of those plates twice, you end up with four long legs, four short legs, two body panels, and two fang parts.
• Ask for help!  I had a lot of trouble organizing the last five parts onto the fifth printing plate.  I enlisted the help of two other Thingiverse citizens, Syvwlch and Renosis, in organizing this plate.  They each solved it in a nearly identical fashion in far less time than I had spent trying to figure it out.
• Use a stepper extruder.  If you’re packing parts in closely together, you’re going to want the kind of fine-grain control a MK6 stepper extruder can provide.

What other tips do you have for creating printing plates?

1. Or rectangle [↩]
2. Ed of Softsolder.com suggests using a matrix of small cubes. [↩]

Thingiverse citizen Pattywac recently launched two design challenges – a Holiday Design Challenge and a MakerMe Design challenge.  Each winner gets $40.00 from Pattywac and an additional $100.00 in MakerBot store credit from MakerBot Industries!  Without further ado, here’s Pattwac’s announcement of the winners!

Holidays Challenge

Nicholas C. Lewis' print of Kliment's Holiday Prusa Mendel Set!

There ended up being 21 holidays-tagged items to judge, many of them being closely evaluated to each other.  Thingiverse citizen Kliment ended up winning with the Holiday-ized Prusa Mendel design, in part, due to the huge response from the community.  This design was able to incorporate the holiday spirit and will continue to give for years to come by allowing others to print other Things and hopefully other 3-D printers.

MakerMe Challenge

Nutcracker by psync

There were only two entries to this contest but they were both pretty cool.  Citizen psync was able to fit his Holidays Nutcracker into the MakerBot for some z-axis walnut smashing action while citizen Nickames was able to create an egg-bot style attachment for the Makerbot.  Nickames ended up taking home the W with the egg-bot attachment due to the response from the community and the fact that it will allow a whole new range of designs to be posted on and printed from Thingiverse.

Congratulations Kliment and Nickames!

Shooting for 300

Josef Průša is giving a talk at the TedX event in Prague on November 20th.  You may recognize his name from his contributions to the development of the next generation RepRap printer, the Mendel.  Josef has been working to simplify the parts and reduce the print time for the parts necessary to create a RepRap printer.  In order to demonstrate the possibilities of DIY 3D printing, Josef is looking to give away 300 printed whistles at this event.

As of yesterday, Josef still has 250 more whistles to go.  Can you help Josef spread the word by sending him some whistles to give away?