reaming prop
12-20-2007 | 12:06 PM
#27
RE: reaming prop
12-20-2007 | 03:22 PM
#33
RE: reaming prop
New drill press, drill press vise, fractional, lettered, numbered and metric drills. Heck you have the excuse, get yourself a combination milling machine and drill press.
12-20-2007 | 03:30 PM
#34
Senior Member
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RE: reaming prop
ORIGINAL: JPMacG
New drill press, drill press vise, fractional, lettered, numbered and metric drills. Heck you have the excuse, get yourself a combination milling machine and drill press.
New drill press, drill press vise, fractional, lettered, numbered and metric drills. Heck you have the excuse, get yourself a combination milling machine and drill press.
12-21-2007 | 02:41 PM
#37
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From: Incirlik, TURKEY
RE: reaming prop
ORIGINAL: CGRetired
This is not a flame, but a little bit of logic here. If he can't afford a reamer, I don't think he can afford a drill press.
Prop Reamer.. $9.99 at Tower Hobbies. If you can afford an RC aircraft, you should be able to pick up a prop reamer at those prices.
CGr.
This is not a flame, but a little bit of logic here. If he can't afford a reamer, I don't think he can afford a drill press.
Prop Reamer.. $9.99 at Tower Hobbies. If you can afford an RC aircraft, you should be able to pick up a prop reamer at those prices.
CGr.
ps. whatever you do, don't try to hold the prop in your hand and just run a drill bit the correct size through it. I have been doing structrual repair on fullsize planes for 13 years and the first time i ever put a drill bit into my flesh (or anyone else's for that matter) was a couple weeks ago doing this. I didn't think the plastic prop would have enough bite to "thread" the drill bit through it right into my hand. it did. ouch. worse part is like i said, i know better.
12-21-2007 | 05:28 PM
#38
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From: San Antonio,
TX
RE: reaming prop
Maybe I'm way against the grain here, but I've never used a reamer, don't even own one. I also have used my trusty drill press with positive results. 
BTW, drill press was a gift a long, long time ago. 
But being this is the beginners forum, I'd recommend getting a prop reamer.
BTW, drill press was a gift a long, long time ago. But being this is the beginners forum, I'd recommend getting a prop reamer.
12-21-2007 | 09:56 PM
#40
My Feedback: (6)
RE: reaming prop
It's a tad expensive, but in the long run it will save time: You can buy a drill bit with the tip smaller than the rest of it and just the right size to fit in the original prop hole. Then use that in a drill press. Clamp the prop in a drill press vise. I got mine from B&B Specialties, which advertises in "High Flight" and I think in other modeling magazines, too. Of course, you may need more than one, though I just have one in the right size for my larger engines.
12-22-2007 | 01:34 AM
#41
My Feedback: (1)
RE: reaming prop
http://www.bennettbuilt.com/page9.htm
This type of drill bit works very well with wood props. It is important that the drilling process is well controlled, because if the bit grabs it can cause a "check" in the hub of a wood prop that can lead to prop failure.
This type of drill bit works very well with wood props. It is important that the drilling process is well controlled, because if the bit grabs it can cause a "check" in the hub of a wood prop that can lead to prop failure.
12-22-2007 | 02:17 AM
#42
RE: reaming prop
ORIGINAL: joseph185
is there another way to open up the hole on a prop besides purchasing a prop reamer
is there another way to open up the hole on a prop besides purchasing a prop reamer
Yes, using a drill. A drill press is best. A hand drill, crank or electric, will work. Here are some tips about prop holes that can enhance your sport flying.
The above information concerning using the drill press is mostly all good. Use some common sense care and don't get in a hurry.
If you use a hand drill, secure the prop and use slightly larger drill bits each drilling. As said above, the bit will tend to follow the hole. Let it do so. Then by using several drillings, each just a tad larger, you will get a decently straight hole through the prop.
If you should get the prop hole too large, simply cut yourseld a strip of masking tape, the width slightly less than the prop. Wind this tape around the propshaft ,until you get a build-up that looks good. If the build-up of tape is too much, take some off. If you get too little, add some more. This will work for centering the prop, is easily adjusted or removed, and takes little time.
Now I have some experience in props from the time I was 8-9 years old when I carved props -- or some resemblence of a prop -- for a spark ignition engine and a CO-2 motor. Maybe not the most efficient, but it worked to "git 'er done."
I have a reamer on the worktable and one in my flight box. I much prefer the drill.
12-22-2007 | 06:56 AM
#43
My Feedback: (1)
RE: reaming prop
Well, to be totally honest with you all, my reamer is one of those T-bar types and is not designed to fit in the drill press, if I even had a drill press. It has successfully reamed out...by hand... perhaps 50+ props for me over the past several years, and not a darned one acted up or was out of balance, or off center (as far as I know) in any way. The way I test them is to ream them out to the proper size, mount them on the engine and fly the plane.
CGr
CGr
