Tuesday, 31 July 2007

First CAD bits


I know they're not much to look at, but at least it's a start. The drawing above is straight out of the AP racing catalogue and is their 10" disc with integral mounting bell. I had wondered about designing my own hub-cum-mounting bell but as I've said earlier, I don't want to price the car out of the market and the less machining that potential racers have to do the better. For those who like looking at catalogues it's part number CP2222-258/59

Now, I know this looks unbelievably unlike a Wilwood Powerlite calliper, but don't worry. What I've done is create a volume model which encompasses the maximum dimensions for the calliper. If this fits under the virtual wheel, then I'll know I haven't got a problem when it comes to the real thing. The last thing I want to do is waste oodles of time generating a micron perfect facsimile of the calliper only to find that tolerance build-ups in the real thing lead to an expensive aluminium-to-aluminium contact.

Anyway, with these two bits designed I can move on to getting the upright designed. I'll be trying to make the upright as light as possible, by designing pockets into it. So that I don't make the thing ludicrously weak, I'll be taking advantage of the built-in FEA to SolidWorks.

1 comment:

Aidan Hird said...

Do you want to borrow one of my (well, actually, they're still Adrian's until he tells me where to put the cash) handbrake Powerlites to check dimensions of the handbrake section? I won't be needing them for a bit.