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Remounted My First Gripper


Magnus

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After reading Matt's topic, I got the urge to try my hand at remounting a gripper. I decided to use my hg100 as my guinea pig, since it was way too easy for any practical use, had uneven handles, and had a stupid-high mount - about 1/2", with the non dog-leg being a little worse (yeah, Matt, you though your 300 was bad :D). I drilled and reset both handles to 0.0035", but I didn't epoxy them yet, because I'm going to tinker around with them a little more :shifty The handles still fit nice and snug w/o the epoxy, though, so I was able to test it out. Didn't rgc it yet, but it's definitely better(cal'd @ 38 before, now feels like about ~45). So, here are the before and after pics of my first remount:

Before

After

I think I'll also remount my 2.17-hg250. Mount's pretty darn high on that one, too.

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I'd have said your re-mount is beyond flush, the top of the handles sit above the spring base.

You could see a definite mismatch in the original mount though! :trout

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Nice. I didn't get this when someone mentioned it before either...What do you mean you "drilled" the handles? I couldn't think of how drilling the handle would break it loose from the epoxy.

That original mount is gross.

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Drilling isn't for getting the handle off. Once you get the handle off, you drill the hole for the spring deeper so the spring can be mounted deeper.

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Nice. I didn't get this when someone mentioned it before either...What do you mean you "drilled" the handles? I couldn't think of how drilling the handle would break it loose from the epoxy.

That original mount is gross.

Thanks :) Luke's got it right.

Now, to break it loose, I heated the handles evenly with a heat gun (avoiding the spring), then wrapped them in a piece of leather and mounted them horizontally in the vice, stuck a rod through the spring, then evenly twisted it back and forth until the epoxy crumbled and the spring pulled out.

Btw, I remounted my 2.17 250, too:

Before

After

As you can see, I really buried the spring on this one. It's mounted at about 1/64, but still closes fine and all. It really made a huge difference! Can't wait to rgc it and see where it's at now. The interesting thing about this one is that I found, for some crazy reason, thread-lock in the bottom of the one handle :blink Go figure...

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I'd have said your re-mount is beyond flush, the top of the handles sit above the spring base.

You could see a definite mismatch in the original mount though! :trout

This is how you measure the mount: http://www.nutritiongeeks.com/images/4019.jpg

...and might be -1/64 or more!

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Ah, I see what you mean now, Mike. I was using a feeler gauge to measure between the spring and the corner of the handle. Seems I'm running a negative in both directions! Well, Warren did it too :cool:D

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Ah, I see what you mean now, Mike. I was using a feeler gauge to measure between the spring and the corner of the handle. Seems I'm running a negative in both directions! Well, Warren did it too :cool:D

That's a deep mount! :blink

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Okay, I calibrated them now, so here's the improvements it made:

Hard HG250:

Before, 3/8 mount - 2.17/116.5lb

After, -1/16 mount - 2.38/125lblb

Easy HG100

Before, 1/2in+ mount - 38lb

After, - 1/16 mount - 48lb

Looks like a great improvement. What epoxy will you use?

I used 5-minute epoxy.

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MAKE A MINI GRIPPER! cut the handles 3/8 (1/4 if you have big hands) . and then file them :). I bet it gets close to a #3. not bad.

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