My new project need simple cad program advice

[Aaron Coffee]

I don't know if I should admit what it is, it might make purists go ballistic. Oh, well. The blue swing arm and wheel are from a 65-69 Honda S65, the red swing arm that I used half of is off another Honda, don't know exactly what, as it was longer than the blue one and had a different size bushing. I wanted the chain on the right side, to flip the wheel, the slot on one side of the swing arm was wider than the other. I started to file the small slot, then it hit me, just flip the swing atm upside down. I was going to remove the shock mounts, then thought about leaving them, in case I need to add weight to aid in traction if need be.

[Aaron Coffee]

Another question. This is a ways off yet, but what are people's thoughts. Varnish, polyurethane or tung oil for the wood finish? Will be using either 5/4 or 1 x3 box store oak. We used multiple coats of tung oil on the soap box derby floorboards, and it seems to stand up pretty good, not sure of uv stability though. Thoughts?

[Pmullen503]

Spar varnish is UV resistant. Everything else depends on what it says on the label. I'm assuming you'll store this under cover so UV exposure will not be the same as something stored outside in the sun.

Cool build, a car museum not too far from me has one of these.

[tony.latham]

Thoughts?

I have not done a woody, so keep that in context.

But if I were to do one, I would fiberglass/epoxy and then coat with a quality spar varnish for UV protection.

Fiberglassing is a rather simple affair.





Without glassing, the plywood may check.



Tony