Ladder cars?

[derbydentist]

Bulldog do you coat those bodies with ca glue? Do you need to put a balsa cross beam in the middle section on those or is it rigid enough as you have it shown there? Thanks

 

[BulldogRacing]

My cars have run with and with out a cross beam, I have noticed the monocoat stays more flat when i have a cross beam but the speed is no different.

 

[derbydentist]

Sweet thanks ! How much do the bodies weigh with and without fenders?

 

[BulldogRacing]

5-6 grams

 

[derbydentist]

5-6 grams

Nice!

 

[Troy Taylor]

5-6 grams

Wow. What kind of wood are you using to get that light?

 

[jatofau1]

I use pine out of the boys scout box or sugar pine. I built jigs like bulldogs. My bodies are around 4.7g to 4.9g. consistently.

 

[BulldogRacing]

Sugar pine for me.

 

[Troy Taylor]

My first attempts. Top car is 10.5 g, second down is 7.5g and closest is 4.5g. The one with fenders is 11.5 now, several coats of paint on them.
I am wondering if the lightest one is too thin?

 

[Troy Taylor]

My camera stinks, here is a better shot of first fender attempt. I plan on doing 1 piece fenders between front and back wheels on the other 2 shorter wheel base cars.

 

[gdurban]

They look great!! Fenders are awesome.

 

[derbydentist]

Paint job looks great on those fenders!
Nice job on the bodies as far as I can tell- I've never attempted the ladder body

 

[derbydentist]

I use pine out of the boys scout box or sugar pine. I built jigs like bulldogs. My bodies are around 4.7g to 4.9g. consistently.

Is the jig just like a plastic stencil piece that has the shapes of the cut outs on it? I'm not in the premium section otherwise I would watch Bulldogs video on the bodies

 

[jatofau1]

Is the jig just like a plastic stencil piece that has the shapes of the cut outs on it? I'm not in the premium section otherwise I would watch Bulldogs video on the bodies

The jig is a routing jig made out of wood. The jig allows you to use a router to route out the weight pockets and body sections. Bulldogs method requires several jigs. I have one jig for the rear weight pocket, one jig for the fwd weight pocket, one for the body cut out that hogs out the body aft of the fwd wheel and the last jig routes out the fwd section in front of the wheel. You can design one jig that you can adjust but I was too lazy to design it.

 

[Troy Taylor]

They look great!! Fenders are awesome.

Thanks. I sanded the balsa fenders as smooth as i could before CA glue, up to 400 grit. Sanded again to 400 grit after coating CA glue, then the primer coat was so smooth i only used 600 grit before gloss black paint. I plan to finish with holographic color change paint over the gloss black, then maybe clear coat if it needs it.

 

[DerbyGuys]

The jig is a routing jig made out of wood. The jig allows you to use a router to route out the weight pockets and body sections. Bulldogs method requires several jigs. I have one jig for the rear weight pocket, one jig for the fwd weight pocket, one for the body cut out that hogs out the body aft of the fwd wheel and the last jig routes out the fwd section in front of the wheel. You can design on jig that you can adjust but I was too lazy to design it.

Thank you for that info - I was picturing something else in my head. I'm sure it gives you super consistent bodies like Bulldogs pictures