by Jon Bondy | Oct 7, 2015 | Uncategorized
I was recently commissioned to print all of the parts for a Compost Crusher/Grinder that my customer found on Thingiverse. Here are all of the parts. Took most of a week to print and cost about $300
by Jon Bondy | May 16, 2015 | Uncategorized
I was recently asked to produce 3D printed and then cast reproductions of the lock mechanisms for Enigma cipher machines. This describes my first cut at the casting. My experience has been that two part molds do not release well from the casts, so this time I went...
by Jon Bondy | Dec 3, 2014 | Uncategorized
I created two simple molds, one for a sphere, the other for an angular spheroid approximation: I forgot to put a releasing agent inside the mold, which bit me later on. Last time, I used grease. I then used clamps to hold the mold halves in place, and then poured the...
by Jon Bondy | Nov 14, 2014 | Uncategorized
One of my customers wanted a prototype of a handle with a metal tang inside. The original thought was to print everything in plastic, but I pointed out that the heft and balance of the prototype would not be realistic. Instead I suggested that we print the handle in...
by Jon Bondy | Sep 21, 2014 | Uncategorized
Open flames are not permitted at the Champlain Maker Fair, and commercial hot plates are difficult to control and unnecessarily large. And I did not make them. So…. I took a page from my friend Ralph Lemnah’s book and purchased some PID temperature controllers off of...
by Jon Bondy | Jul 16, 2014 | Uncategorized
It took a few weeks, but they’re all done. Each print consists of 2 parts, for a total of 5 hours of print time per print.