Angle Plate

Cobra

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H-M Supporter Gold Member
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Apr 24, 2013
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709
Started a new project this week. Making an angle plate to use on the mill.

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Sketches for the project.

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Nice material to work with 1/2 X 6 ground mild steel from McMaster-Carr.

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Cutting up the stock for the upper and lower plates and the hinge piece.
 
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Cleaning up the plates.

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Basic shapes completed

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Cutting the notch for the upper plate.
Using the lower plate and clamps to stiffen the part just in case but it cut very nicely. Not quite like aluminium but certainly easier than 4140.

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Cutting the bearing holes in the hinge piece.
 
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Taping holes in the hinge piece. Kept the holes blind for looks.

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Adding the pin holes to the top plate. Holes were drilled and reamed to 0.250" and then drilled 0.850" for the 5/16 threads. Using the remaining piece of 0.250 hole to maintain alignment of the hinge pins.

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Adding pivot screw holes to the upper plate. The G0755 is just big enough to thread with the part on edge!
 
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Making the hinge pins. Using a vertical shear tool to cut down the 5/16 threaded rod to match the 1/4 inch holes.

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Rounding the corners of the upper plate for clearance for the hinge.

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Drilling and counter-sinking the lower plate for the hinge piece.

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Drilling and pining the hinge to the lower plate.
 
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Corner rounding the hinge piece with 0.25 radius tool. Learned from Tom's Techniques that the corner rounding mill cutters like climb milling better than conventional. First time using these cutters but they worked well.

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Taping the piviot holes for the lower plate.

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Preparing the material for the support slides for the sides of the plate. Wouldn't you know that the only handy material was twice as wide and half again as thick as needed for the part?
Might have been quicker to go out and buy more but too late now.

That's as far as I have progressed to date. I will post more photos as the work gets done.
 
Got back at it yesterday and this morning.

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Facing the material down to 3/16 before sawing to the width.

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Sawing to width and bringing to finished size before slotting.

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Supports finished on the belt grinder.

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Checking for fit.
 
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Hinge pins trimmed to length and slotted for screwdriver.

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Just needs a few holes now.

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I thought I got tired of drilling - tapping was worse!

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Top plate complete.

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Bottom plate complete. Holes match the t-slots of the mill for the times that I cannot use it in the vise.

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Complete!
 
Very nice! Thanks for taking the time to document and post this!
 
Really nice. I need to do one of these.
I think you may want a tapping head for the mill though.
R
 
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