Measuring drilling tapping

Get this forum started.
1911 plate, handy jig for milling, barrel fitting, slide fitting.
As mentioned in another thread, drill rod, and undersized drill rod from McMaster Carr come in all the 1911 sizes and many more. Very tight tolerance, 2"-3" long. 2 or 3 bucks a piece.
Ebay for aluminum plate, bolts, and 90 angle

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I use a precision angle plate and a pin gauge set to dial the frame in. I also don’t use a 1911 plate.

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:+1:

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Here is my ordinate sketch for the plate, using decking height and slide stop as zeros, although when I actually cut it I lowered the top below the slide cut.

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That’s awesome. I’m actually sitting in a drafting class right now. The casino is sending me here twice a week

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Drafting class is a great foundation for tons of stuff.
I took it in high school in the 70s and still helps me out.

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There are some missing dimensions from your drawing. Are the holes for the grip screw bushings clearance holes, tapped, or drilled out to receive a pin? The hole that (I presume) lines up with the the magazine catch also lacks a dimensional call out. The Length and thickness of the plate are not called out, as well.

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I’m learning the easy way AutoCad

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Holy moly, thought I was over on the 1911 forum for a minute.
For the plate, more then 3 or 4 pins over constrain the frame anyway. Makes 0 difference how thick the plate is. But you knew all that, just busting my chops, right? :rofl:

Learned acad in the 80’s if I remember correctly. ACAD 9/DOS 3.x? Played around with revit, and inventor, both pretty cool, but still running ACAD on the personal. Kinda like the 1911 of computer drafting.
We are using Revitzo or something like that now, got a team of brainiacs doing all the 3d modeling. I’m just the hammer.

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I always try error on the side of too much information than not enough. I have a bad habit of double dimensioning in my personal work, so that I don’t have to do math at the machine.

I think that people may want to make one of your plates. Some folks get frustrated if things are not completely spelled out for them if it’s their first time doing a project like this. For people not as skilled as you, it’s like not having all the pieces for a puzzle.

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Worst thing if you totally screw up your out 5 bucks worth of metal, and gained 10 bucks worth of knowledge. No reason to overcomplicate it.

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I really enjoyed getting my precision machinist apprentice certification.
Too bad i cannot do anything with it around here.

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