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Month: November 2017

Update on Printed Bearings

Update on Printed Bearings

Sadly the printed bearings in the previous post do not work as well as one might like… I put it in a lathe at 200 rpm for 10 minutes and the PTFE bearing surfaces wore terribly badly. Sigh… However, we

Adrian November 28, 2017November 28, 2017 Experiments 3 Comments Read more

Printed Bearings

Printed Bearings

My design for RepRap Lorenz uses printed sliding bearings with PTFE inserts running on stainless steel tubes: So I thought I’d try printing replacements for rotary journal or needle-roller bearings.  Here’s the very first test. It is pretty rigid, and rotates freely.  Obviously

Adrian November 21, 2017November 28, 2017 Experiments 1 Comment Read more

Time-of-Flight Distances

Simblee RFD77402 distance sensor

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

Adrian November 17, 2017November 17, 2017 Ideas and Inventions No Comments Read more
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