CONTROL HORNS Drill

[Larry Caldwell]

A Fostner bit works well too, and cuts a hole with cleaner edges than
does a hole saw.  You still need something behind the wood you are 
drilling.  I got mine from Lowes.

Larru

ronlock at comcast.net wrote:
> One more alternative -
> You can drill holes for dowels with a hole saw.
> It still takes a wood backing and maybe the masking
> tape as well on the back side of the drilled hole.
> Personally, I use 5/8 inch dowels in lieu of 1/2.
> 
> Ron Lockhart
> 
>>Sorry....typing more than thinking ;-)
>>
>>I put a piece of masking tape on the outside of the sheeting of the surface
>>being bored.  If it's relatively sawdust-free, and good tape, it will hold
>>the fibers together as the brass tube cuts through.
>>    I drill mine in the drill press, using the shucks on the press table,
>>drilling from the upper surface to the lower, so the tape is on the lower
>>surface, and against the shuck.
>>    Holding moderate pressure to the surface/shuck, the drill press with the
>>tube will go through it like butter, with only light pressure needed.
>>    Using this technique, one can do both ailerons, both elevators, and the
>>rudder in about 5 minutes, if being slow.
>>    Hardwood dowels are coated with thin epoxy, inserted flush with the
>>sheeting.  If you're cautious, and pre-measure and sand the angles, these
>>can be very cleanly glued in place.
>>    After they're cured, drill centers in the same shucks for the 6-32 bolt.
>>    Works just dandy.
>>
>>Bob Pastorello, Oklahoma
>>NSRCA 199, AMA 46373
>>rcaerobob at cox.net
>>www.rcaerobats.net
>>
>>
>>----- Original Message ----- 
>>From: "Martin X. Moleski, SJ" <moleski at canisius.edu>
>>To: <discussion at nsrca.org>
>>Sent: Wednesday, September 03, 2003 7:58 PM
>>Subject: Re: CONTROL HORNS
>>
>>
>>
>>>--On Wednesday, September 03, 2003 5:43 PM -0500 Bob Pastorello
>>
>><rcaerobob at cox.net> wrote:
>>
>>>>Masking tape on the back side of the tubing drill prevents the tear-out.
>>>
>>>Bob, with a round tube, I'm having trouble picturing the "back side."
>>>
>>>Do you just mean to wrap masking tape around the tube near the cutting
>>>edge?  A depth stop?  Masking tape on the back side of the balsa being
>>>cut?
>>>
>>>Thanks for clarifying.
>>>
>>>Marty #2874
>>>=====================================
>>># To be removed from this list, send a message to
>>># discussion-request at nsrca.org
>>># and put leave discussion on the first line of the body.
>>>#
>>>
>>
>>=====================================
>># To be removed from this list, send a message to 
>># discussion-request at nsrca.org
>># and put leave discussion on the first line of the body.
>>#
>>
> 
> =====================================
> # To be removed from this list, send a message to 
> # discussion-request at nsrca.org
> # and put leave discussion on the first line of the body.
> #
> 
> .
> 

=====================================
# To be removed from this list, send a message to 
# discussion-request at nsrca.org
# and put leave discussion on the first line of the body.
#