Search found 42 matches

by ironband
Thu May 16, 2019 9:05 am
Forum: Do-It-Yourself
Topic: Stop section
Replies: 6
Views: 182

Re: Stop section

The friction material can be had at McMaster Carr in 10 or 50ft lengths.

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by ironband
Fri Apr 05, 2019 10:59 pm
Forum: General Car/Truck Racer Topics
Topic: Is XPS foam lighter then balsa?
Replies: 13
Views: 1086

Re: Is XPS foam lighter then balsa?

Here they are in their final form.
Image
by ironband
Tue Mar 19, 2019 6:50 pm
Forum: General Topics
Topic: Tips for winning the SLOWest Car?
Replies: 14
Views: 990

Re: Tips for winning the SLOWest Car?

Usually just triggered by air. Here's a video:

https://www.youtube.com/watch?v=2BoLztcYYlg
by ironband
Tue Mar 19, 2019 6:15 pm
Forum: General Topics
Topic: Tips for winning the SLOWest Car?
Replies: 14
Views: 990

Re: Tips for winning the SLOWest Car?

Are you allowed a sail? The best snail racers use a sail that deploys during the downhill, slowing the car down, then folds down as the car coasts slowly to the finish.

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by ironband
Sat Mar 16, 2019 4:24 pm
Forum: General Car/Truck Racer Topics
Topic: Is XPS foam lighter then balsa?
Replies: 13
Views: 1086

Re: Is XPS foam lighter then balsa?

No, sorry. Not that light :)

12.2g
by ironband
Sat Mar 16, 2019 9:26 am
Forum: General Topics
Topic: Red Rocket ?
Replies: 13
Views: 3148

Re: Red Rocket ?

Why is all the good stuff unavailable in Cali? Grr.....
by ironband
Fri Mar 15, 2019 8:29 pm
Forum: General Car/Truck Racer Topics
Topic: Is XPS foam lighter then balsa?
Replies: 13
Views: 1086

Re: Is XPS foam lighter then balsa?

Image

They're coming along.
by ironband
Thu Mar 07, 2019 9:31 am
Forum: General Car/Truck Racer Topics
Topic: Is XPS foam lighter then balsa?
Replies: 13
Views: 1086

Re: Is XPS foam lighter then balsa?

Yeah, basically Modge Podge or White glue watered down.

I haven't finished a set yet to take pics of, but when I have something pic worthy I'll throw it up.
by ironband
Wed Mar 06, 2019 8:41 pm
Forum: General Car/Truck Racer Topics
Topic: Is XPS foam lighter then balsa?
Replies: 13
Views: 1086

Re: Is XPS foam lighter then balsa?

Yeah, tests with acrylic gloss paint have been less than satisfactory. However, I think some PVA and then urethane over that could be quite durable.
by ironband
Tue Mar 05, 2019 11:57 pm
Forum: Car & Semi-Truck Construction
Topic: Hello brand new here.
Replies: 122
Views: 11117

Re: Hello brand new here.

I'd lube before tuning. As I understand it Krytox is good for weeks after application. I'm not really familiar with the oil application process, but I believe you just put a drop on the axle, turn it to coat the area that the wheel will ride on, put it in the wheel, and soak up any excess with some ...
by ironband
Tue Mar 05, 2019 11:52 pm
Forum: General Car/Truck Racer Topics
Topic: Is XPS foam lighter then balsa?
Replies: 13
Views: 1086

Re: Is XPS foam lighter then balsa?

I'm working on a set right now (and here I thought I was being creative...)

It seems to cut and sand well, and as I understand it a thin layer of acrylic paint will serve to protect and strengthen them.
by ironband
Mon Mar 04, 2019 2:15 pm
Forum: General Car/Truck Racer Topics
Topic: Are we due for new wheels?
Replies: 4
Views: 602

Are we due for new wheels?

I've noticed some of the vendors indicating that the BSA wheel quality has gotten pretty bad suddenly. I looked at the calendar and realized it is 2019, ten years since the "new" wheels came out in 2009. Before that, we got a wheel update in 1999. Before that, looks like 1988 or so. So 10-11 years s...
by ironband
Wed Feb 20, 2019 2:08 pm
Forum: General Topics
Topic: Pinewood Derby Rules
Replies: 4
Views: 662

Re: Pinewood Derby Rules

B. The body of the car must be made from the block of wood provided in an official B.S.A. PINEWOOD DERBY Kit (Cat. No. P1622). The wheels must be placed in the slots provided (the original slots are cut at 4 1/2”). Wheels may not be designed to ride upon the guide strip of the track. I'd ask for cla...
by ironband
Mon Feb 11, 2019 7:48 pm
Forum: Car & Semi-Truck Construction
Topic: Advice on modifying car for districts please
Replies: 10
Views: 1198

Re: Advice on modifying car for districts please

That's a good point - in my experience using a 1.5 degree bend will allow for migration and steer while the wheels still "ride flat". If the rule prohibition is against bent axles, then you might not go this way, but if the rules just say that the wheels have to "be flat" then that might be a way to...
by ironband
Mon Feb 11, 2019 9:57 am
Forum: Car & Semi-Truck Construction
Topic: Advice on modifying car for districts please
Replies: 10
Views: 1198

Re: Advice on modifying car for districts please

A few things here: 1. Revell wheels are heavier than their BSA counterparts, and therefore slower on a normal sized track. 2. Revell axles, while having a better surface finish, are smaller than their BSA counterparts, and therefore slower than a properly prepped BSA axle. 3. Most BSA axles have a s...