Squaring Guard Slot

rick c

Member
Guy's,

I came up with a way to square a guard slot with out using a file. It's easy and the corners are nice and sharp.I use a square rotary broach bit.I mill the slot with a 1/8" endmill. Then chuck the rotary bit in the mill,no power needed.Move the bit to the end of the slot and raise the bit. Move the table .002" and lower the bit.This shaves the radius out of the slot.Raise bit move table .002" and repeat. Keep doing this until slot is nice and square.Just the downward motion of the quil.

I hope this helps,

Rick
 

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Cool trick. Where did you pick up your broach from?

Polygon Solutions (239)628-4800.The stock sizes are $54.00 3/16" is .190" and will go through .400" stock.You can order custom sizes and they can be longer up to .800" for an extra $20.00 I think.

Rick
 
My first thought was, could this be done with a drill press? I'm assuming fine adjustments would be necessary. But if that would work using a drill press that could save lots of time and FRUSTRATIONS!!!
Thanks fo rthe tip! Rex
 
My first thought was, could this be done with a drill press? I'm assuming fine adjustments would be necessary. But if that would work using a drill press that could save lots of time and FRUSTRATIONS!!!
Thanks fo rthe tip! Rex

Rex,

I think you could use a drill press with a X Y table.

Rick
 
Rex,

I think you could use a drill press with a X Y table.

Rick

With using a X Y table, and that this uses a shearing motion, could an arbor press be used or something similar? Also, how much do these run? And how many sizes do they come in? What I have in mind I would need the shank to be smaller, where did you get yours from? Looks like there just might be hope left for me to make a decent hidden tang....hope is a good thing!
 
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