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Okay..... so I don't have their hair!
Whitesnake - Here I Go Again '87 (Official Music Video)

A few weeks ago I posted a thread about receiving a box of Harrison Design Parts. that music themed message was "something happening here"
Well.. the rest of the package arrived today. Fresh from Elliott at JEM Guns.
The project will be deemed "Last One vol. 3" (I thought I was done doing this two projects ago)
This is really only a 1/2 project as I intend to repurpose a complete upper assembly to this lower half.

The first step starts tomorrow. Measure 6 times before cutting anything.

Follow along if you wish....... "UNFOLLOW" if you don't.

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Makin' the popcorn. 🦈
 
Discussion starter · #24 · (Edited)
I’m in but hope your not making this..

No Sir… Hell, I’m so old that my .45, .40 S&W and 10mm are loaded so light. Even the Poodles can step aside.
 
Discussion starter · #25 ·
Update….

I start my process by running the deck over some 800 grit on my granite surface to remove burrs & bumps. I also want to see if it is flat so I can use it as a datum plane for taking measurements
I then check the critical holes for acceptable diameters. Hence the gage pins.
I also used my gage pins to find slot width for dim. D
Height gage & indicator to measure dim. B
Height gage, indicator & pins to measure dim. A
Height gage & indicator to measure dim. C (bottom pic)

Now I have frame numbers. So…. What to do with them??? (See next Update)


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Discussion starter · #26 ·
So here's what I do.
I get the numbers for the slide. (which I had when I used this top end on another frame.
The comparison tells me what to work & what to leave alone.

The numbers told me all is good except for the frame rail width. .003" had to come off to have a zero gap fit.
I use my frame rail stoning jig. I take a starting measurement and work one side down .0015"
I turn the frame around and take off .001" This is where I switch to 800 grip paper in the jig. I work that side a bit more until I can start slide & frame together. I turn the frame again to polish that rail at 800.
Turning one more time until I can get the slide fully on under pressure. I keep going until the slide will hang by itself but move under thumb pressure.
That's where I stop because I know it will loosen as I have this slide on & off numerous times before I even shoot it.

The blue slide is not covered because its proprietary. Its covered because its already finished.
Scratch avoidance.

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Okay..... so I don't have their hair!
Whitesnake - Here I Go Again '87 (Official Music Video)

A few weeks ago I posted a thread about receiving a box of Harrison Design Parts. that music themed message was "something happening here"
Well.. the rest of the package arrived today. Fresh from Elliott at JEM Guns.
The project will be deemed "Last One vol. 3" (I thought I was done doing this two projects ago)
This is really only a 1/2 project as I intend to repurpose a complete upper assembly to this lower half.

The first step starts tomorrow. Measure 6 times before cutting anything.

Follow along if you wish....... "UNFOLLOW" if you don't.

View attachment 1831091 View attachment 1831099
Where do I subscribe for “Last Ones: Volume 4 - 7” ?
 
Okay..... so I don't have their hair!
Whitesnake - Here I Go Again '87 (Official Music Video)

A few weeks ago I posted a thread about receiving a box of Harrison Design Parts. that music themed message was "something happening here"
Well.. the rest of the package arrived today. Fresh from Elliott at JEM Guns.
The project will be deemed "Last One vol. 3" (I thought I was done doing this two projects ago)
This is really only a 1/2 project as I intend to repurpose a complete upper assembly to this lower half.

The first step starts tomorrow. Measure 6 times before cutting anything.

Follow along if you wish....... "UNFOLLOW" if you don't.

View attachment 1831091 View attachment 1831099
I love this!
 
Discussion starter · #38 ·
Update...

My usual process or sequents of events are:
Fit slide to frame... fit barrel to slide... fit barrel-slide assembly to frame (lower lugs, link etc)
Since this top end is complete from a previous project. I'll fast forward to the checking the top assy. to this frame. I inked the lower barrel lugs and installed a .200" dia pin and cycled a few times. The contact looks like the original project might have used a .197-.198" pin.
One issue I'm trying to avoid is having to refinish the slide. After seeing the rear of slide matchup with the rear of frame with a full size SS pin. I might have to work the lugs just a touch to get full pin contact and move the slide forward just a touch..... Or... not give a shyt about the grinding all parts to get that all-is-one fit.

Moving on... I like to get the grip safety functional at this point. I start with the largest pin I can get thru frame & GS at start. I then blue the frame radius and rub contact points until I can get the GS to use a full size pin and give full travel.

Note* All fancy blending of parts will happen after the gun is functionally complete and test fired.

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