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Mungeclimber
Trad climber
sorry, just posting out loud.
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LET THE SPARKS FLY WHERE THEY MAY!!!
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bluering
Trad climber
Santa Clara, Ca.
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pretty cool!
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SteveW
Trad climber
The state of confusion
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Thanks for the update!
They look sweet!
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deuce4
climber
Hobart, Australia
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Hi Theron-
You might find something better, but we just used inexpensive cobalt steel drills for the carabiner hole. We only got about 10 holes per drill, but I recall we were getting the drills for a couple bucks each from one of our suppliers. Lots of oil!
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healyje
Trad climber
Portland, Oregon
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Sweet, the jig is up!
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Roxy
Trad climber
CA Central Coast
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sweet pics...
that's prolly good porn for ol' weld_it
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adatesman
Trad climber
philadelphia, pa
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If you can find a supplier (or just someone with a Winslow drill sharpener) you may find the Winslow-Bickford drill point just the ticket for this. Basically it's a cross between the Helical point (S-shaped crown that's self centering and minimizes the thrust force required) and a Racon point (full radius to minimize wear on the tool and burr on exiting). From the looks of it the radius on the drill edge should allow the drill to center properly given the taper of the hammer head. Link to Winslow site
Of course the other option would be to spot drill with an endmill to get rid of the taper and then do the drilling, but that adds an operation...
EDIT- BTW, I used to have one of their HR machines and their Helical and Bickford points really are as awesome as they make them sound. Damn expensive machine, but worth it if you're doing enough drilling. What really sold me on it was one job we had that was a 6" diameter filter screen .250" thick in 302 (304?) stainless with about a 500 #46 holes in it (0.081"). With conventional drill points and spot drilling we were getting ~5 holes per drill (spot drilling would work harden the piece at the hole location a bit), with the Bickford point it was closer to 30 per drill and eliminated the spot drill op without putting hole location out of the +/-0.005 tolerance. Oh, and there was practically no burr on the exit side. Of course putting the Bickford point on drills that small was a bit of a PITA, but the difference was amazing.
EDITx2- Hmm... Those numbers don't sound quite right. I either have the thickness or the drill diameter off, as I distinctly recall the holes being ~7x diameter. Dunno, and for whatever reason the number 80 is stuck in my head with it, so maybe it was #80 drills. I do recall them being close to the small limit of what the machine would do and given that it was 15 years ago I'm surprised I even remember it at all!
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msiddens
Trad climber
Mountain View
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sweet
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Acer
Big Wall climber
AZ
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SWEET!!
I'll just take mine raw though.
It is amazing how much you can learn here on the Taco.
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Ed Hartouni
Trad climber
Livermore, CA
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May 19, 2010 - 12:36am PT
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bump to the top
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squishy
Mountain climber
sacramento
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May 19, 2010 - 12:06pm PT
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awesome work, keep it up...
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billygoat
climber
Pees on beard to seek mates.
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May 28, 2010 - 07:36pm PT
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Any updates?
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RDB
Social climber
way out there
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May 29, 2010 - 12:22am PT
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sweet!
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dangry
Trad climber
the bay-sierra complex
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Jun 22, 2010 - 02:51pm PT
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bump
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T Moses
Big Wall climber
Paso Robles
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Topic Author's Reply - Jun 23, 2010 - 12:05am PT
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Sorry to keep ya'll in the dark. I've been really busy with regular production and the rest of life. I've got to be able to pay for the remaining proccesses and keep the family semi happy.
The milling of the face is complete. I have test run grinding the pick and it is no big deal. The last real hurdle for the heads is the 'biner hole drilling. I've got a couple ideas I'm going to explore over the next week or so.
I'll post pics of the drilling when I get there.
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Cpt0bvi0u5
Trad climber
Merced CA
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Jun 23, 2010 - 12:45am PT
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Right on! Stoked for the final product mate! Thanks for all the effort you are putting into this!
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healyje
Trad climber
Portland, Oregon
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Jun 23, 2010 - 02:07am PT
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Thanks for the update Theron! Definitely post up some pics on jigging up for drilling the hole.
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BrendenR
Trad climber
Alberta, Canada
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Jun 23, 2010 - 10:08am PT
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Thanks for the update dude!
Looking forward to swinging the beast this summer.
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bluering
Trad climber
Santa Clara, Ca.
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Jun 23, 2010 - 12:09pm PT
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Cool, Theron!
We (at least I) understand you have a regular job and family to tend to in addition to this project.
Thanks for the update.
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