[TheForge] 2 things

[schade at acegroup.cc]

On Apr 30, 2008, at 6:28 PM, schade at acegroup.cc wrote:

>
> On Apr 30, 2008, at 3:50 PM, Mark Novak wrote:
>
>> 2. What tool options are out there that would help me drill a 
>> centered hole into the end of mild steel rod (besides a punch to make 
>> a starter dent)? I have a drill press and a drill press vise, but I'm 
>> trying to make a single hole in many inch long sections of half-inch 
>> rod and don't want to have to set each one in the vise, trying to get 
>> it lined up each time with the bit and the starter dent, etc... Help!
>>
>
> You could make a little fixture in an hour. Take a piece of say 1-1/2" 
> thick  flat bar a couple of inches long. If you don't have 1-1/2" just 
> stack and edge weld (spots) what you have.
>
> Take another piece of flat bar say 1/4"-1/2" thick but otherwise the 
> same dimension as the first piece.
>
> Tack the edges lightly with your welder.
>
> Drill a small hole thru the thinner piece and down into the other 
> piece at least 1" (the length of your part).
>
> Then drill two tap drill sized holes for 1/4"-20 thru both pieces.
>
> Then grind your welds holding the pieces together.
>
> Then drill the two holes in your top plate with a 1/4" clearance hole.


** then tap both holes 1/2"-20 in your 1-1/2" block.

>
> Then drill and tap a 1/4-20 hole thru the side of your 1-1/2" plate.
>
> Done.
>
> To use put your fixture in your vice.
>
> Put your part in the hole in the 1-1/2" piece and put a set screw in 
> the 1/4-20 side hole to hold it for drilling.
>
> Then screw your top plate (drill bushing) down and drill your hole.
>
> repeat
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