Wednesday 18 February 2015

working on the Helix spoke wheel

Today I had some time so I did some turning on the lathe. I made a two piece bearing cup for the speedometer.It needed two slots in front of the bearing. I do need to align the wheel in the fork, but so far so good. I did a mock up with a 10 inch inner tube, looks quite like a slick tyre. Not bad…







Saturday 7 February 2015

Project #4; the ceramic exhaust



The ceramic project was on hold for a while. Working in ceramic in my wood/metal workshop is no good combo. So during the Dutch Design Week I was able to do some work again. Instead of my original plan to cast it in porcelain I decided to press mould the exhaust.

I made a chamber with 'cups' to diffuse the air flow.




drying tent


This is the second one with diamond shaped cups for diffusion. Plus a nice one sticking out at the back...



ready for firing to 1240 Celsius
 After firing the second exhaust turned out to have shrunk more on one side, I used two different types of clay; one had more molocite in it. They are both still in one piece and have no cracks. next is glazing...



the RV90 so far


So far the 1981 RV90 still needs a new kickstart axle, new battery, rear brake lever and new fork seals.
Slow but steady

quick tyre flip for the Helix and some work on the lathe for the Elite fatty

 Used the drill press to release the old tyre from the rim. Quick and easy without tyre spoons flying around...
 And some good leg work...
Voila, back on nice new 120/70-12 rubber


 Made a bearing cup for the right swing arm on the Spacy/Elite. It fits right in a 57mm inside tube.
Had to drill a new hole for the valve on the other side of the steel rim and close the other side. My initial tyre 225/45-10 turned out to have too little clearance to the engine. I'll probably end up using a stretched 150/80-10 inch tyre.