Category 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

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

Workshop Lighting

I recently added some LED lighting to my workshop. There are several “Star” type LED modules, as well as some MR16 downlights. These were situated above the work bench and helped to highlight the work area, two of the MR16 lamps also illuminated a dart board. I had the idea of hiding the dartboard lights underneath the shelf above the board which would also allow the lighting to be off the wall reducing the amount of shadows created. Continue reading Workshop Lighting

3D-Printed Tooling

When working on a Honda CRM 250 I needed to disassemble the engines water pump from the casing to replace the seal.

To do this the impeller needs to be unscrewed from the shaft. There is a hex on the nose of the impeller which can be gripped with a spanner or socket, the other side is not so easy. A lot of people simply jam a screwdriver in between the teeth of the plastic gear and the aluminium casing but I wasn’t happy that this would allow me to unscrew the impeller without damaging the gear. If you look closely in the photos you can see some cracks where the gear is pressed onto the shaft (apparently quite common on these engines). Continue reading 3D-Printed Tooling