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+--- Thread: Coring through Ohia Logs (/showthread.php?tid=12365)
Coring through Ohia Logs - all bent - 08-14-2013
As I mentioned in an old thread found as I scoured google for some sort of guidance, my company has been contracted to install signs and sign posts for the State and the plans call for drilling a 3" hole, 2 feet deep into ohia logs. We have been using 3" forstner bits on drill presses as well as a 1/2" hole hawg with very little progress to show for our time. Any input will be greatly appreciated.
Thanks
RE: Coring through Ohia Logs - Carey - 08-14-2013
A friend in Rancheros used Jeff Anderson in Ocean View:
http://www.ohiapolesetc.com/
RE: Coring through Ohia Logs - EightFingers - 08-15-2013
I'd do this on a lathe. Drilling into endgrain is the pits! Mount your forstner in the tailstock (using a "jacobs" type chuck) and extensions as needed. Attach the other end of the log to a faceplate and mount on the headstock. Those extension would need to be pretty robust to keep them from wandering off-center, tho'. I've used this method successfully to about 24" with 2" diameter forstner bits.
This might be a good question to pose to the Hawaii woodworkers' guild or even the woodturners' club.
RE: Coring through Ohia Logs - DanielP - 08-16-2013
I would try using twist drill bits, graduating up several times. Keep 'em razor sharp and back them out often to clean the flutes.