Included pin diameter

« Prev
1
Next »

Vodka Racing SUPER MOD [Mo0:12] Posts: 170	Included pin diameter Sept 20, 2009 11:34:29 GMT -7 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Vodka Racing on Sept 20, 2009 11:34:29 GMT -7 What should be the diameter of the included pin? Thanks!

2FAST4U PDDR Administrator jewkesengineering.com Posts: 1,760	Included pin diameter Sept 20, 2009 12:53:43 GMT -7 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by 2FAST4U on Sept 20, 2009 12:53:43 GMT -7 Sept 20, 2009 11:34:29 GMT -7 Vodka Racing said: What should be the diameter of the included pin? Thanks! 1/8th inch...
	www.jewkesengineering.com Home of the High Performance Pinewood Derby Speed Supplies... Get The Edge On The Competition!!!

Vodka Racing
SUPER MOD

[Mo0:12]

Posts: 170

Included pin diameter Sept 20, 2009 13:50:17 GMT -7

Quote

Post by Vodka Racing on Sept 20, 2009 13:50:17 GMT -7

Yesterday I got a 1/8" x 12" long hss drill bit to use across the length of The Block. The bit was noticable smaller than my included pin. Using digital calipers my included pin measures 0.16" (closest to 4mm) and not 0.125" (1/8"). What are the side effects of using a larger pin?

ACME Racing SUPER MOD [Mo0:4] Posts: 944	Included pin diameter Sept 20, 2009 15:33:18 GMT -7 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by ACME Racing on Sept 20, 2009 15:33:18 GMT -7 The pin I got with the BLOCK is .125 inch. So the 1/8 long drill bit should work. Maybe Jewkes supplier got the pins wrong?

2FAST4U
PDDR Administrator

jewkesengineering.com

Posts: 1,760

Included pin diameter Sept 20, 2009 18:12:52 GMT -7

Quote

Post by 2FAST4U on Sept 20, 2009 18:12:52 GMT -7

Sept 20, 2009 13:50:17 GMT -7 Vodka Racing said:

the only pins i have are .125. I did get a couple of tester pins for more cant... it looks like you got my secrete

... give me your address in a pm and i will send one out monday...

Last Edit: Sept 20, 2009 18:25:56 GMT -7 by 2FAST4U

www.jewkesengineering.com

Home of the High Performance Pinewood Derby Speed Supplies...

Get The Edge On The Competition!!!

ACME Racing SUPER MOD [Mo0:4] Posts: 944	Included pin diameter Sept 20, 2009 18:20:14 GMT -7 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by ACME Racing on Sept 20, 2009 18:20:14 GMT -7 Glenn, I need you to really screw up and send me a box full of secret supplies! I won't tell a soul!

resophonic1
Guest

Included pin diameter Sept 24, 2009 18:39:46 GMT -7

Quote

Post by resophonic1 on Sept 24, 2009 18:39:46 GMT -7

I bought a stock piece of round bar 1/8" in diameter from my local hobby shop. I cut it the same length as the block, that is what I currently use for my sheme. I also bought a piece of 3/16" round bar but I have not tried it to see if that degree cant would be faster. Until I get a track and timer there's only so much you can do to test different car designs.

Last Edit: Sept 24, 2009 18:41:07 GMT -7 by resophonic1

Vodka Racing
SUPER MOD

[Mo0:12]

Posts: 170

Included pin diameter Sept 27, 2009 22:56:57 GMT -7

Quote

Post by Vodka Racing on Sept 27, 2009 22:56:57 GMT -7

Sept 20, 2009 13:50:17 GMT -7 Vodka Racing said:

My bad, I mistook the pin that comes with the Proxxon bench drill press for the Block pin.

I found the Block pin and it measures 0.125".

And now I lost the drill press pin. ;D

W Racing SUPER MOD W Racing [Mo0:12] Posts: 1,706	Included pin diameter Sept 28, 2009 7:29:04 GMT -7 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by W Racing on Sept 28, 2009 7:29:04 GMT -7 Vodka, It is fortunate that you switched them around. ;D

Shoutbox

Post Quick Questions and Comments

Vitamin K: pony I'd love to see a video of your putty technique, if you were so inclined. Feb 23, 2018 8:35:34 GMT -7

pony: Don't over heat the axle. I did that once too and I had to resand the axle. Two seconds of the flame is all I did. I hold the axle in the drill chuck, heat it then immediately spin it against the silly putty. I then wipe the axle down by hand. Feb 23, 2018 22:02:58 GMT -7

pony: I do the same technique with the hard ski waxes which I use a lot. You can heat the axle or if you don't want to use the heat just hold the hard ski wax against the spinning axle. Use high speed. The ski wax transfers by friction and the heat of the spin. Feb 23, 2018 22:06:02 GMT -7

pony: Remember though you still need some form of silicone on the axle after the ski wax. Plastics on steel always needs silicone. I don't have the technical know how to do a video and post it. It's the same process as polishing compounds and polishing wheels. Feb 23, 2018 22:09:47 GMT -7

pony: In everyday Cub scout races the Jig or the Max-Pro is good enough. The Silly Putty was only .001 faster. If the Silly Putty feels old and dried out I'd try to get some more and just use the heat of the spinning axle to get it to transfer over to the axle. Feb 23, 2018 23:45:42 GMT -7

corvid: Thanks for clarifying and the additional great info and best of luck racing today! Feb 24, 2018 9:53:58 GMT -7

pony: Has anyone had trouble with their timers? Mine seems to have lost .015 or all my cars are dogs. Feb 28, 2018 7:19:58 GMT -7

Zeebzob: Pony, I would check the gate first. I have found the gate to be a cause of a sudden time discrepancy. Mar 1, 2018 7:54:43 GMT -7

pony: Thanks, Zeeb. I did work on the gate prior to this loss of speed or time. It's the way of the world, you try to fix something and you screw up something else. Mar 1, 2018 8:40:34 GMT -7

pony: Glenn's razor wheels ruled the track at nationals again. Apr 28, 2018 19:14:24 GMT -7

hacksaw: Where is the 2018 race schedule? May 19, 2018 19:08:08 GMT -7

Gone Racing: I agree with Pony. Hard to beat Glenn's razor wheels. Aug 31, 2018 6:33:18 GMT -7

cherokeechuck: Hey al just saying hi and hoping to have a series here soon.... Nov 29, 2018 21:05:36 GMT -7

Gone Racing: Hey Pony! Where you been? Dec 30, 2018 17:58:25 GMT -7

pony: Been working on some writing projects. My sons and I attempt to write screenplays, but haven't sold any yet. No agent. It's tough. Jan 1, 2019 16:32:57 GMT -7

2FAST4U: keep trying eric...