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Big Bill 06-12-2011 02:02 PM

Powder Puff Derby

Not sure if this question belongs here but I've received help from this forum in the past, so I thought some may have some ideas.

My daughter entered a Powder Puff Derby for Girl Scouts and needs to make a race car out of wood. The wood is pine, and is 7" long x 1 3/4" wide x 1 1/4" deep. The theme she wants to make is a hair brush but I'm having trouble making the bristles.
I tried a router to make "slots" horizontal and vertical, skipping every other one with the hope of leaving a "post" to be the bristle, but they keep breaking on me when I crosscut against whichever "slot" I make first. I then tried drawing a pattern, then drilling every other "hole", but that isn't working out too well either.
Any ideas how I might make these bristles out of the block of pine?

If this question dosen't fit to this forum, I understand. Thanks :)

DangerMouse 06-12-2011 02:06 PM

Can you post a picture? I'm having a hard time imagining what you are attempting to do.


Ron6519 06-12-2011 02:25 PM

Why not just drill holes and insert the bristles in there.

Big Bill 06-12-2011 02:42 PM

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Originally Posted by DangerMouse (Post 665926)
Can you post a picture? I'm having a hard time imagining what you are attempting to do.


Hi, Here's a picture:

Big Bill 06-12-2011 02:45 PM

Thanks, :)

I guess I could drill holes and insert the bristles, but I was trying to keep it as a total wood theme. I just want to give the impression of a brush, I think it would look cool if I could do that.

DangerMouse 06-12-2011 02:53 PM

The way you're trying to do it will continue to fail. The rotation of the router is working against you.
I would either use a table saw to do the second passes or drill and use round wooden dowels for the bristles.


Big Bill 06-12-2011 02:57 PM

Thanks DM. That's perfect advice! :) I'll try the table saw on the second pass and see what happens. Thank you!


DangerMouse 06-12-2011 03:01 PM

If you have a fine tooth blade, it'll chip out less too.... (hopefully)


DangerMouse 06-12-2011 03:09 PM

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If it were me, and the second pass worked out, I'd also attempt diagonal cuts to 'round' out the bristles too.


Big Bill 06-12-2011 03:12 PM

True.... maybe I'll try one of my hand saws first to (hopefully) control the chip out? Hey.... if I can't get it right I can always change the "theme", but I'm not a quitter so I'll give it my all first! Thanks again. :thumbsup:

kwikfishron 06-12-2011 03:13 PM

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I think even if the table saw works the pieces will be very fragile (especially with Pine), too much so for the intended use.

I like the drill and dowel idea better. You could even use toothpicks. A little bit of curve to the block wouldn’t hurt either.

Big Bill 06-12-2011 03:14 PM

Another good idea! :)

DangerMouse 06-12-2011 03:20 PM

Wow, I didn't read well enough to see "7" long x 1 3/4" wide x 1 1/4" deep".
Is this just to be an ornament for a soap box derby type RIDEABLE car(t)?
Or is this the base for a small toy type car? If this is the case, drill and dowel/toothpick, yup.
Working this small of a project is hard and can even be dangerous on a table saw.

Sorry about that.


kwikfishron 06-12-2011 03:31 PM

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Big difference between the Soap Box and the Powder Puff class.:laughing:

Big Bill 06-12-2011 03:39 PM

LOL! Not a rideable derby. It's the same as the Pinewood Derby that the Boy Scouts have.... except for the girls:

I'll be careful whatever way I do it. Thanks

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