A new printer has arrived at Speeddevice.
The MP CNC (Mostly Printed CNC) is now working and being tested as a pen plotter before attaching a rotary tool. There have been some interesting problems. To find out more about those and my recommendations read on. Continue reading MPCNC Testing
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
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
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
Recently turned a few spacers on the lathe for the CRM to motard conversion (see earlier posts – CRM 250 with Aprilia RS-125 wheels & brakes).
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.
Here is a drawing of the basic Motard Bracket.
I hope to make this using a manual mill, drill press and hand-tools when time permits.