Thursday, 4 September 2014

Production goes fulltime

Got a week off work next week so dragbike production goes full time for a few days!
Recent good weather meant i've pretty much finished bronze welding the frame
It's also been decided - after watching some videos of the runs at shakey that it would improve traction off the line if we could make the wheelbase a bit longer, so i have some new, slightly longer axle adjuster blocks to make for the bopchop. Only 1 inch longer, but with 3 links added to the chain it will allow the back wheel to go back 2 inches. i can't go any longer without crude modifications to the bodywork, and as it stands i'm having to make an extended chain guard.

The second half of the wheel 'hub' is done now too. Only polishing left to do!
I had some parts water cut this week too. Mk2 axle blocks for the new bike and the back wheel, which also incorporated the front and back engine mounting brackets.
It marks an end to having thicker parts water cut.  It takes a disproportionately long time to cut thicker bits of ally and therefore gets expensive. A jigsaw, and then onto the milling machine for the big things in future, or maybe it's time for a bandsaw?
The wheel is a 6 spoke curved design to match the front. I started machining it this evening. I started by boring the center hole by mounting it on a faceplate in the lathe, then skimmed the outside edge too. This allowed me to transfer it over to mill and center it accurately on the rotary table, where i;ve made a start on drilling the bolt holes.

Taking a short break before any more progress however. We are off to Santa Pod to watch the last 2 days of the European finals. Tomorrows qualifying includes an evening session .... Top fuel in the dark!

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