Cody's Book - bought it but can't find a 27/32 drill bit!!

[DavidD]

Cody, love the book, but now I am stumped.  I have tried 5 hardware stores including home depot and no one, I mean no one carries the 27/32 inch drill bit as a bit or a hole saw.  Now, I have tried a 7/8 inch bit and this make the hole too big, so I am at a loss at what to do!

Looking forward to your reply

David

[Cody Deegan]

Jamestown distributors has them under 1/2" shank drill bits.

jamestowndistributors.com

You might also try the tip in my arm's forum on using a solid piece of aluminum instead of a tube.  That way if the hole is slightly too big the bearing will still be captured and functional.

[David Delaney]

Sorry I haven't read that tip yet. 
So if I have a solid piece - even with a 7/8 drill it should be ok?  I am not sure how that would work - it would slip through just the same, no?

Do you have the url of the tip?

[Brett A. Noe]

With the solid piece, you don't drill all the way through. You only drill the hole for the bolt all the way through.

[David Delaney]

Ok, that sounds good, but doesn't that give more problems ?

1) the bearing sits in the cavity loosely.
2) what size is the rest of the hole that goes all the way through? 5/16 or probably bigger so the thread won't catch from the bolt?
3) heavier, right?

Shoot, I don't want to buy the square tubing unless I know for sure, there goes my plans to build the arm today!

[Brett A. Noe]

You can get the bits from Fastenal as well.

One more thing, You need to change your name to your full real name. It is a requirement of the board. You will be deleted if your name shows up as is.

[David Delaney]

Thanks Brett, I will check Fastenal today - I need to pick up some of the smaller bearings as well.

Thanks for the tip on the user name  : Also, I tried to change my user name, but it will only let me change my real name, not sure how to fix that.

Charles?

[Charles King]

Well David, it worked. Your full nam is showing now.

[Cody Deegan]

You don't have to use the arm tip if it sounds like too much of a hassle.  Just get the bits and follow the plans.  I only posted that tip because I thought it might be beneficial.

[David Delaney]

I appreciate the tip!  I am going with another idea of yours instead - I saw you were using 1/4 ID 5/8 OD bearings - so I am going to try that and get a drill bit for this size instead.  What size would you recommend for this?  I am assuming that the plans will be the same except I can go smaller on the aluminum size and thickness with this new bearing, right?

[David Delaney]

I bought a bunch of aluminum for the posts and discovered only after I had come home and looked at the plans again that it requires Squared aluminum, I bought squared tubing!   I hope this won't make much except for the aesthetics.

[Brett A. Noe]

Which posts are you refering to?

[David Delaney]

In his guide - he has post A, B, C, D etc.  That is what he names them.

[Brett A. Noe]

I looked at my plans. He calls for 1 1/4" square aluminum tube with 1/8" walls. If that is what you have, that is what you need.