McMaster Carr Drill Bushing

Womack2005 · Post by **Womack2005** » Sat Aug 05, 2006 12:05 pm

Does anyone have the part number of the tool needed to drill the Elevator horns? Thanks.

Womack2005 · Post by **Womack2005** » Sat Aug 05, 2006 1:06 pm

Never mind - Made one

captain_john · Post by **captain_john** » Sat Aug 05, 2006 1:09 pm

Yah, I was gonna say...

Thermos and I were just getting ready to look it up for ya. He recently ordered one.

Glad it all worked out!

CJ

Wicked Stick · Post by **Wicked Stick** » Sat Aug 05, 2006 4:27 pm

I simply drilled a hole using my drill press in a "squared" block of wood that was wide enough to fit snug between the horns.. Worked out great for me.

Post by **Spike** » Sun Aug 06, 2006 8:25 am

In your drill press? Hmm, not sure I get it. Are you saying that you held the entire assembly vertical and somehow managed to get the press lined up correctly to do that?

captain_john · Post by **captain_john** » Sun Aug 06, 2006 12:34 pm

Nope, the drill press assured a perpendicular hole in the material. This was then used as a guide after one weldment was drilled as accurately as possible in order to get to the second one within a reasonable tolerance.

CJ

Wicked Stick · Post by **Wicked Stick** » Sun Aug 06, 2006 8:17 pm

Thanks CJ,

He is correct in that we only pre-drilled the block of wood on the drill press, then squeezed it between the two horns laying on the bench and used it as a guide to drill straight across from one to the other.

sorry for the confusion on the first post.

Thermos · Post by **Thermos** » Mon Aug 07, 2006 6:05 am

If anyone is interested, here's the bushing I bought from McMaster-Carr.

8491A049 - Steel Headless Press-Fit Drill Bushing/Liner #40 (0.098") ID, 1/4" OD, 3/4" Length, $9.16 EA

I had to work on the bushing a bit with emery cloth to get it into the HS center hinge bracket bearing. This is a press-fit bushing, and the hinge bearing must have been on the small side.

Dave

Womack2005 · Post by **Womack2005** » Mon Aug 07, 2006 7:01 am

Thanks guys. Thermos, that is the part number I came up with, but I just made one at work out of a bolt.

Wicked Stick · Post by **Wicked Stick** » Mon Aug 07, 2006 10:26 pm

Here's a picture of what I used to drill through my elevator horns.
I measured and drilled the first hole on one, then used the pre-drilled, squared block of wood as a guide to drill through to the other elevator horn.

It worked out just fine, and it's nice and straight, and the elevators work perfectly with no binding whatsoever. Didn't cost me a dime either.

Post by **Spike** » Tue Aug 08, 2006 12:16 am

And here I thought you guys were talking about drilling the holes for the center bearing on the spar.

Womack2005 · Post by **Womack2005** » Tue Aug 08, 2006 6:53 am

Spike, I was

WS, thanks for the pic. I wish I was that far along, but I am just now mounting the elevators for the first time. You must be getting to the home stretch?

captain_john · Post by **captain_john** » Tue Aug 08, 2006 7:01 am

HA!

Miscommunicado!

Well, that is how you do the other hole!

I still haven't drilled the hole you are talking about. I assembled the elevators onto the HS and hung it up on the ceiling a year ago. I figure that when it is all painted and I am balancing the elevators and rigging it all up, I can do it then.

I know, it isn't how others do it, but I want this thing painted before I fly it! It would kill me to take it apart and put it back together in order to paint it. I couldn't endure the downtime!

CJ

Wicked Stick · Post by **Wicked Stick** » Tue Aug 08, 2006 9:33 am

CJ,

That short piece of tubing I gave you will work out great for doing the bearing hole.

For the bearing hole, I just followed Van's instructions and used a piece of aluminum tubing that is the correct size to fit inside the bearing. I then used a drill bit that was snug to the inside of the tubing to drill the pilot hole.

You start by inserting the aluminum tube snugly into the bearing and mounting only one elevator and drilling from the bearing into the elevator horn, then remove that elevator, and mount the other one and drill again. The bearing and the tube become the drill jig. I did it this way and it worked out great.

captain_john · Post by **captain_john** » Tue Aug 08, 2006 9:39 am

Cool, thanks again!

Are we workin' on your plane today?

CJ

Wicked Stick · Post by **Wicked Stick** » Tue Aug 08, 2006 9:39 am

Womack2005 wrote:Spike, I was

WS, thanks for the pic. I wish I was that far along, but I am just now mounting the elevators for the first time. You must be getting to the home stretch?

I can't say that I see the light at the end of the tunnel just yet... That won't happen for probably another years time. I'm reaching that stage of the game where it gets expensive (avionics, instrumentation, prop, etc.)

It's also at that stage in the project where you want to quit your job and work full time on the plane to finish it, but if you do quit your job, then you have no money to pay for it all.

So, I guess I'm off to play the lottery

captain_john · Post by **captain_john** » Tue Aug 08, 2006 9:45 am

Wait a minute! I might be at that stage now!!!

Oh wait, I don't have a job. I teach!

CJ

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McMaster Carr Drill Bushing

McMaster Carr Drill Bushing

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