I just finished boring a 20mm x 11mm flat bottom hole in a piece of 1" x 2" square stock with my drill press!
-Harbor Freight drill press (the cheap one)
-Cross slide vice (the cheap one)
-M3 drill and tap
-M3 machine screw
-4mm 4fl end mill ($6.50 victormachine)
-graduated drill bits from 1/8" - 1/2"
-scrap aluminum I-Beam
-Jigaloo spray lube
-2x M3 washers
Find dead center on the square stock with a ruler and scribe.
Drill from 1/8" to 1/2" at your desired depth.
Find center on back side...drill and tap for M3 machine screw.
Drill a hole in the top of the I-Beam just big enough for the M3 screw.
Spray top of I-Beam and bottom of stock with lube.
Thread machine screw through 2 washers, I-Beam, and into stock...snugly.
Insert I-Beam into vice...now you have your "Rotary Table". (sort of)
Center 4mm end mill in the 1/2" hole.
Set depth in VERY SMALL increments to widen hole out to 20mm.
Manually rotate square stock a full rotation.
Return to center and increase depth.
Repeat for approx. 17hrs ( ) or until you reach your desired depth.
I was told by the neighbor that I could borrow his lathe...but all of his cutting tools and tail stop chuck were stolen. It has a 3-jaw chuck. I accidentally ordered square stock instead of more hex bar, so I figured a 3-jaw chuck wouldn't work. (and I don't have lathe bits)
Now I got a 1" square stock lamp head to make a face cap for and do some finning!
I'll finish this one and my little 3/4" hex for the single...and maybe justify sending all of my pieces off to be anodized.
Pic's tomorrow...I'm tired now.
Results 1 to 12 of 12
Check out the hottest mountain bike products from these brands!
See All Interbike Coverage - Click Here »