Tag Archives: 3D-print

Workshop Projects

It has been very busy here with numerous projects but the main project has been a new simple CNC router.

P1010604 This is based on the “Mostly Printed CNC” machine that has featured on Hackaday, Thingiverse and other websites. This is small 3-axis machine with belt drives on the x & y axis. The z-axis has been upgraded to a lead-screw and nut.
The purpose of this machine is to get familiar with the software & hardware before commencing work on a larger platform router and then on to a third machine which should be a solid steel frame for machining metal parts. Continue reading Workshop Projects

Replacing Obsolete Parts

This was a practical application of using 3D-printing to fabricate replacements for obsolete parts. The center caps for Holden Commodores with steel rims is a good addition to crate a tidy standard looking vehicle. These parts were commonly available and many were probably thrown away when steel rims were upgraded to alloy wheels but now a set can be from $100 – $180. Continue reading Replacing Obsolete Parts

FEA Simulation & Real Life Testing

I wanted to make an improvement to the quadcopter since the timber arms, although cheap to replace, tend to break too easily. The main problem is that on impact the force tends to split the timber where it mounts into the hub.
I came up with a quick printed arm design and then did some testing. This also gave me a chance to compare the real life results with the FEA simulation. Here are the results. Continue reading FEA Simulation & Real Life Testing

Toroidal Pick-Off

What is a toroidal pick-off?
This was a recent project to create a toroidal (doughnut) shape to surround a pelletron-chain in a high voltage machine with an applied potential. The cut-away section is to allow the chain to come out without damaging the part if it were to break while running.

Toroid 1 Continue reading Toroidal Pick-Off