Tag Archives: Software

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

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

Further Refinement of Motard Brake Bracket

Following on from the earlier post I have carried out further refinement with FEA of the Motard brake bracket.

The first design was somewhat simplified to provide mounting of the Aprilia brake caliper to the CRM 250 without too complex a shape so that it could be produced using a manually operated mill and some hand tools to fabricate. Looking at the results from the simulation showed one area that required improvement, between the upper caliper mounting bolt and the upper bracket bolt. As the following image shows.

Front Fork and Brake_Lite_Weak spot Continue reading Further Refinement of Motard Brake Bracket

FEA of Motard Brake Bracket

Sorry for the lack of updates as I was overseas for a few weeks.

Now to the article, FEA or Finite Element Analysis is an excellent tool for verifying and improving your design. The following image is of a model I have created of the Honda CRM250 front fork with the custom designed adapter bracket and radially mounted caliper from an Aprilia RS-125. Continue reading FEA of Motard Brake Bracket