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Making an Aluminium Grip Frame

 
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DeckB26354
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Joined: 24 Oct 2007
Posts: 184

PostPosted: Mon Oct 23, 2017 4:39 am    Post subject: Making an Aluminium Grip Frame Reply with quote

Hello All

So, I have my firing blaster and the sidkit grips. I always knew they were a tad small but the colour was pretty good.

Then I get hold of a pair of the Tomenosuke grips! These are clearly the correct size and in the photo I have laid them over my fitted sidkit grips.



My problem now is that I need a new grip frame and butt plate and I am not sure how to achieve this. Another member very kindly offered some templates and advised me to buy some 1/2" thick aluminium and cut it out from that.

I could really do with any advice or helpful info on this one. Do we know that the original was indeed 1/2" thick? Has anyone else attempted making a grip frame and butt plate from scratch? How do I cut out the inner profile to fit around the bulldog frame? So many questions!!!

Any feedback much appreciated. Very Happy
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djblingbling1
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Joined: 11 Oct 2017
Posts: 43
Location: Salem, OR

PostPosted: Mon Oct 23, 2017 8:54 am    Post subject: Reply with quote

Nothing to add, but following closely as I am in the same boat!

I have to go a bit more custom though because the Charter Arms I am using has been de-commissioned via sawing the grip frame off, so I need to get creative with that area of the blaster.
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veektohr
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Joined: 26 Feb 2016
Posts: 211
Location: Los Angeles

PostPosted: Mon Oct 23, 2017 7:15 pm    Post subject: Reply with quote

You could cut it out via the template on a band saw, and do final fitting with a belt sander & rotary tool. That's how I was planning on making mine until recently.

Based on the dimensions of the grips I have, I think 1/2 inch is pretty spot on. On the restoration photos you can see a rough finish like they'd been faced with a sanding belt, so perhaps the true dimension is slightly less.

I've got some stuff in the works, but I'm currently moving/starting a new job. I hope to have some updates soon! Your blaster is gorgeous Smile
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hauptmann
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Joined: 26 May 2010
Posts: 100
Location: California

PostPosted: Mon Oct 23, 2017 9:49 pm    Post subject: Reply with quote

HI,
I started on an aluminum grip fram for a Coyle kit I had for a while. I ended up selling the kit, but though I didn't complete the grip frame, I learned enough in starting it to offer a small bit of advice.

1/2" plate is the right thickness. It's easy enough to trace out the frame and the bulldog grip frame cavity then bandsaw the rough shape. As long as you have a band saw. Use a thin blade, like 1/8" wide so you can make the tight turns in the shape. A small contact wheel on a belt grinder would be best for profiling the outer shape, but there are other methods too.

Here's what I came up with:



The tricky bit is creating the blind slot for the hammer clearance at the top of the frame. I don't remember exactly how I did it, but vaguely remember using the edge of a grinding wheel or might have possibly used the band saw making repeated cuts. I milling machine would work best, if you have one in your back pocket....

Good luck!
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DeckB26354
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Joined: 24 Oct 2007
Posts: 184

PostPosted: Tue Oct 24, 2017 5:26 am    Post subject: Reply with quote

Well, thank you both so much for the invaluable info!

Love the photos, hauptmann. Really useful but quite frightening at the same time! Makes me realise what a huge job this is going to be. Shocked

Ogrotesque1 has been the star who has offered the templates and I have asked him to trace around the grip frame and butt plate with measurements written down in mm as well, so that I can print them off in exactly the same size. This seems like the best idea. At least then I have something to cut around. I know what you mean about the inner part of the frame and the hammer clearance. Possibly the toughest part.

As soon as I have the templates, I will have a go and keep you posted here with some pictures. Laughing

Thank you again all and if anyone else has some more info, observations or advice, I would love to hear it.
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DeckB26354
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Joined: 24 Oct 2007
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PostPosted: Tue Oct 24, 2017 5:55 am    Post subject: Reply with quote

Just had a few thoughts.

veektohr - you referred to a rough finish in the restoration photos, like they'd been faced with a sanding belt. Do you mean the diagonal lines on the face of the grip frame as in the photo?



hauptmann - I see the same lines on your grips only at a different angle. Was this finish the result of a sanding belt?

Also, while I am asking, does anyone else see a screw receptor inserted into the gips (circled in red) rather than just a screw thread tapped? I am wondering if the aluminium is too soft to hold the screw for the Amber grips on its own.
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veektohr
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Joined: 26 Feb 2016
Posts: 211
Location: Los Angeles

PostPosted: Tue Oct 24, 2017 9:33 am    Post subject: Reply with quote

Yeah, that grain has always looked like the finish left by low-grit sand paper to me.
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DeckB26354
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Joined: 24 Oct 2007
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PostPosted: Tue Oct 24, 2017 1:40 pm    Post subject: Reply with quote

Ok, thank you for that clarification. Looking at the finish again that makes sense.
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DeckB26354
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Joined: 24 Oct 2007
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PostPosted: Wed Nov 15, 2017 8:17 am    Post subject: Reply with quote

Hi All

OK, well I have the Aluminium company lined up to make the cut from the templates. I also have found someone who can drill and tap. However, I need a new Bulldog Grip Frame & Trigger Guard and Numrich (https://www.gunpartscorp.com/products/322860) have decided to stop shipping to the UK! Evil or Very Mad

Is there anyone out there who has one of these or can buy and send me one please? I really need some simple but crucial assistance!
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BR12819
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Joined: 31 Oct 2006
Posts: 166
Location: Atlanta, GA

PostPosted: Wed Nov 15, 2017 12:36 pm    Post subject: Reply with quote

DeckB26354 wrote:
Hi All

OK, well I have the Aluminium company lined up to make the cut from the templates. I also have found someone who can drill and tap. However, I need a new Bulldog Grip Frame & Trigger Guard and Numrich (https://www.gunpartscorp.com/products/322860) have decided to stop shipping to the UK! Evil or Very Mad

Is there anyone out there who has one of these or can buy and send me one please? I really need some simple but crucial assistance!


PM sent!
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