those who port their own TB's come in....
08-24-2006, 02:14 PM
#1
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those who port their own TB's come in.... I am using an air die grinder to port it and was wondering if they make a specific bit for grinding aluminum and makes porting the TB easier? if you have one let me know where you got it b/c i have noticed that all hardware stores don't have it (home depot, lowes, etc)
08-24-2006, 04:39 PM
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I had to take the bit I was using over to a grinder with a wire brush on it a couple times to help clean out some of the aluminum that plugged the bit and slowed things down. The first TB I did I did not use the coarse bit I had. I wanted to take it slow, but the second one went a lot quicker after I was more confident in what I was doing and the coarse bit.
08-24-2006, 06:11 PM
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I used 3/4" sanding drums at 60, 120 grit for the material
hogging in an electric die grinder with the voltage dialed
down, and hand finished it with finer grit sandpaper.
Do yourself a favor and mark the outside seating circle,
remove the butterfly and put a few layers of masking
tape to cover the seating circle plus pen line. That way
one "oops" won't ruin your day.
Never had much luck with hard bits in aluminum. Too
much pressure probably but I always load them up and
have to go pick out the aluminum every few minutes.
For this kind of job consumable abrasives are plenty
good enough. The Black & Decker drum sanding kits
at Mart-Mart / Home Depot are plenty cheap. You can
use them in a likewise cheap single-speed electric drill
if you want, with good results.
hogging in an electric die grinder with the voltage dialed
down, and hand finished it with finer grit sandpaper.
Do yourself a favor and mark the outside seating circle,
remove the butterfly and put a few layers of masking
tape to cover the seating circle plus pen line. That way
one "oops" won't ruin your day.
Never had much luck with hard bits in aluminum. Too
much pressure probably but I always load them up and
have to go pick out the aluminum every few minutes.
For this kind of job consumable abrasives are plenty
good enough. The Black & Decker drum sanding kits
at Mart-Mart / Home Depot are plenty cheap. You can
use them in a likewise cheap single-speed electric drill
if you want, with good results.
08-24-2006, 06:25 PM
#6
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Ive ported 50+ Tbs ive always used sanding rolls in 80 first then 120 grit after you sand it down as far as you want it. Go back and use a little 120 grit flap wheel sander that will smooth it out more then go over it by hand with 1200 grit paper. Then polish the inside with a little polishing wheel.
08-24-2006, 07:33 PM
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I just use 60 and 120 sanding rolls, then use 800 grit sandpaper. I heard it flows better when you dont polish it completley smoot. Not sure where that thread was.
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08-24-2006, 09:34 PM
#8
Originally Posted by FireSilverLullaby
I heard it flows better when you dont polish it completley smooth. Not sure where that thread was.
