Research and Development in Self-Replicating Open-Source 3D Printing
How can we correct for every single inaccuracy, non-linearity, bend in an axis slider, error in steps-per-millimeter and all the rest in a RepRap machine using just one technique? Read on… Here’s me, deliberately blocking the nozzle of my RepRap Fisher.
We have designed and made the electronics for our multi-filament drive. It is in the form of an Arduino shield with DC H-bridge motor controllers, opto-sensors and an I2C interface. The I2C means that it will be possible to drive
We are developing a multi-filament drive to a single nozzle hot end, as mentioned in this previous post about filament stream merging. It will require an in-line filament guillotine, and we have just finished the first version. This is a
Making RepRap prints stronger without doing a lot of work. The other day a tweet about filling the interior of RepRap prints with more plastic after the print is finished prompted me to look at an old idea of
This is a design for a 3D printer filament merging Y for multiple-material RepRaps. The design is based on a wonderfully simple idea from Martin Zeman. It is easy to print, to construct, and to put together. In operation it works very
Inspired by Jo Prusa’s flexible printing bed that attached to his machines magnetically, we decided to do the same for our RepRap Fishers. We got some 10mm x 10mm x 5mm neodymium magnets from eBay, and a 200mm square sheet of
A conventional angle gauge (such as the one above) can’t measure the angle of an object with a sharp corner, because the hub of the gauge is the pin about which it rotates. New 3D printed angle gauge – This
This is a brief blog post to get an idea into the public domain to prevent its being patented. I’ll probably work up more detail later. Plastic extrusions are widespread: guttering, pipes, curtain rails and so on are all examples.
The Simblee RFD77402 distance sensor (thanks to Victoria Stamps on Twitter for bringing it to my attention) is not very big and not very expensive (about $6). It is the little black chip on the green carrier: It is an
The other day Richard Horne (a.k.a. RichRap) tweeted “It would be nice if you could chemically soften [3D print material] after printing.” This is a really clever idea – you could make a two-material print with two hard materials that stayed