Deltafab has been a kind of dream project for me. I've always been fascinated by the speed of delta robots.  In June of this year I had first started pondering how would be the best way to go about making a mostly reprappable delta robot. I eventually thought about breaking up the pivots into two locations. IContinue reading "Deltafab Part 1 of many"

I spent most of the first third of my Winter break off from University hacking on the printrbot design posted by whosawhatsis. I wanted to make a few optimizations and most importantly separate the parameterizations of the smooth and threaded rod. Unfortunately, I altered a bit too much in the script to merge easily. Lesson learned, make small alterationsContinue reading "Printrbot Part 1"

More likely back to the mixtape mendel project. I have had, in my head, the ideas I want to implement into version 0.2. Many of these things are fundamentally sound. I also wanted to test out some of the hardware and software I would be using on testing mixtape mendel. Partially to eliminate variables. MostContinue reading "Mixtape Mendel Updates"

Here is what I have learned from version 0.1. - Tapping plastic works well. - I need to make my parts a tad bit thicker. - In OpenSCAD, I should never use scaling factors to describe walls, but rather hard millimeter values. - Having a configuration file would be awesome. - I should flip theContinue reading "Version 0.1 to 0.2"

I figure I will just post up some pics. It turns out I need to rework the top piece and bottom piece, because the motor hits the side rods on the triangle. This effectively makes my x travel around 2cm. 6cm if I pretend the print bed is non existent. I am going to flipContinue reading "2cm of Z travel and other updates"

http://www.thingiverse.com/thing:6067 I have been preparing for my Science Olympiad competition the past week. I already have a road map for next week, and have started thinking about version 0.2 for mixtape Mendel. All I can say is expect alot next week. My smooth rod will be here possibly, and I will be printing and designingContinue reading "Why this week hasn’t had any developments"

Yes, lots to blog about about. First, the top piece. I got most of my ideas from hacklab.to for this part. Most of it isn't interesting, except for an accident in the design I made. I had originally intended to shift the motors outward to allow for room for the nuts. As I was finalizingContinue reading "The top piece, mistake turned experiment, and looking like a printer"

These pieces were very simple to design. I had three main ideas I wanted to implement. The first was glue free bushing holders. My idea was to wrap the plastic around the bushings, so they get pressure fit within the cavity. You can still pop the smooth rod off, but now they align better andContinue reading "X end pieces"

Ok, so sometime last week I was messing around and realized that I could totally eliminate a bearing from the printer. The realization was that the pulley inner circumference was a tad bit over 8mm, so a M8 rod could go right between the belt if everything lined up just right. Well it took upContinue reading "Y Motor Bracket"

This is going to be short and sweet. I have decided to use Whosawhatasis' bar clamps in addition to his vertexes. They are here. I have done this for two reasons. The major one is the bars perpendicular have zero gap between them, as illustrated here. There is a gap between the two bars onContinue reading "Bar Clamps"