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Experimental "pinned" FK leadwire clips


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#1 MSwiss

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Posted 27 November 2017 - 12:47 PM

I've been pinning the Red Fox guide shoes, the last 3 or 4 months, to provide some extra durability in crashes.
 
Now, I'm providing a pinned FK lead wire clip, for those who like the "no-heat" concept of the FK wire clip, but were a bit leery, they could get knocked off in a bad crash.

 

I'm 99.8% sure this will prevent that.
 
For those who want to play with the concept, I'll provide my FK lead wire clips, drilled, for $2.00 per pair.
 
If you would also like a couple of the cotter clips, as shown in the below pic, it will be an additional 50 cents, or $2.50 for the set of 4 pieces.
 
I'm thinking while it wouldn't provide the heat sinking, the cotter clips provide, twisted craft wire will also work, and won't have any clearance issues with interiors, etc.
 

Be aware, on ones that are drilled, the hole is in the retention "leaf spring", so I wouldn't recommend these, unless you commit to adding some sort of pinning.

 

Info on unmodified clips is below;

http://slotblog.net/...leadwire-clips/

 
20171127_114427-1.jpg


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Mike Swiss
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516





#2 gotboostedvr6

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Posted 27 November 2017 - 01:33 PM

My vote for thread of the year!
Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children's children what it was once like in the United States where men were free. - Ronald Regan #40 (1911 - 2004)

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#3 Matt Sheldon

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Posted 27 November 2017 - 02:37 PM

Won't you tweak the brush arm taking the alligator clip on and off? They are very pliable.


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#4 MSwiss

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Posted 27 November 2017 - 02:48 PM

Hence, the word "experimental". Lol

You can take a bit of the spring out of the cotter clip.

Then it's a matter of using a flat blade screwdriver to pry it open a bit, while pulling it with needle nose pliers.

You can also just use twisted craft wire, and untwist it, clip it off with small side cutters.

Mike Swiss
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#5 MSwiss

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Posted 21 February 2018 - 09:41 PM

For those who want to make sure their clip stays in place, and don't want to risk damaging  the motor tab, by screwing into it, they can use the above system I introduced back in November.


Mike Swiss
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#6 Mark Wampler

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Posted 21 February 2018 - 11:23 PM

Looks like a lot of weight to be dangling off those thin terminals. 


You can quote me.

-Mark

#7 MSwiss

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Posted 21 February 2018 - 11:40 PM

Surface area for superior heat sinking.

If you don't want the weight, you twist craft wire.

Virtually no weight.

The important thing is not to damage those flimsy tabs by twisting a self-tapping screw in it.

Mike Swiss
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#8 Mark Wampler

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Posted 21 February 2018 - 11:52 PM


The important thing is not to damage those flimsy tabs by twisting a self-tapping screw in it.

 

There's no twisting that would affect the terminal.  The screws fit just right, but like you said, you could simply use a wire.  Either way, the concept works.  I like the screws because they are very light, won't flop around like a wire or cotter pin. 

 

Good luck on your design.  Everyone benefits on whatever way racers choose.


You can quote me.

-Mark

#9 MSwiss

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Posted 22 February 2018 - 12:00 AM

How is twisted wire going to flop around?


And if it did, so what?

It's a miniscule amount of weight.

Mike Swiss
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#10 Mark Wampler

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Posted 22 February 2018 - 12:08 AM

I think screws are the best design.  If you have to "twist" a wire, then you're putting stress on the terminal.   A small wire inside the larger terminal hole will vibrate around.  It may keep the clip from coming off, but won't keep the clip from moving around on the terminal.  The screws I show on my post fit just right and will secure the clip and prevent movement between clip and terminal.  The hole size drilled in the clip must match the size of the hole in the terminal.


You can quote me.

-Mark

#11 MSwiss

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Posted 22 February 2018 - 12:21 AM

You apparently don't understand how to put a wire they 2 holes, make a loop, and twist it.

It doesn't put any stress on the tab at all.

Sorry, Mark, but yours is a terrible idea.

You already said the screw is a loose fit.

So you either have the screw vibrate out, or you use Loctite on an electrical connection, and then have to break the loose screw, probably twisting the tab in the process.

Mike Swiss
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516






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