Sorry for the lack of posts but the past several months have been quite busy relocating from the east coast to the west coast.
One advantage of relocating is it gives a good opportunity to reconfigure the work space and take advantages of lessons learnt in the previous workshop. Technology keeps involving and being able to incorporate some new ideas is always welcome.
Continue reading Relocation
As mentioned previously on this blog, this is a motard style conversion of a Honda CRM 250 using a 2007 model Aprilia RS-125 wheels, discs and front brake caliper.
A custom bracket was designed in Solidworks to adapt the radially mounted caliper to the original brake caliper mounting holes. Designing in 3D allowed the part to be simulated (FEA) with heavy braking loads and calculate the factor of safety, stress, strain and distortion.
One of the advantages of using the Aprilia wheels over the popular wire spoke wheels is that they incorporate a cush-drive to reduce driveline vibrations. Continue reading Motard Complete & Tested
It has been very busy here with numerous projects but the main project has been a new simple CNC router.
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
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
With the development of so many consumer, DIY and kit CNC mills, lathes, Laser-cutters, 3D-printers and other assorted NC machines that line our wishlists it can be easy to forget that a lot can be accomplished with manual tooling.
Continue reading You Don’t Always Need A CNC
A recent project was figuring out how to adapting a YZ-125 motorbike engine to a go-kart frame.
A kart usually has two parallel tubes to mount an engine to sometimes a flat plate that is welded into the frame. A motorbike on the other hand has a frame that encircles the engine or even uses the engine as a stressed member forming part of the chassis. The kart for this engine had a flat steel plate with a few slotted holes to bolt the engine in place and was situated behind the axle close to the centerline. Continue reading Adapting a Motorcycle Engine to a Go-Kart
The fabrication of the motard bracket, to adapt the Aprilia RS-125 radial mounted caliper to the Honda CRM-250 front forks, is now complete and the results are quite pleasing.
Continue reading Finished Fabrication of Motard Bracket
The pick-off is now finished.
The linishing was completed using an abrasive “flap-wheel” with a little bit of hand finishing. Continue reading Pick-Off Finished
The toroidal pick-off from the previous post has been printed. Continue reading Toroidal Pick-Off Printed
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.
Continue reading Toroidal Pick-Off