Button Sizing and Spacing.

[stace]

Guys,

I'm trying to sort out my cp design and hope you can help?

I understand that a happ button requires a hole of 1 1/8"  is that correct?

What is the overal width of the button including the 'lip' ?

Thanks
Stace 

[4Aaron GE]

Most buttons are spaced 1.5" apart, centre to centre.

[csa3d]

I understand that a happ button requires a hole of 1 1/8"  is that correct?

This is correct.  I personally suggest a fostner bit.  For other hole related questions, don't forget about this thread about hole sizes.

-csa

[vidmouse]

I've also used a step bit... a little rougher going, but
it gave me a cleaner hole.

From what I've read, most people get away with
just using spade bits too.

I think I saw a set of forstner bits at Big Lots the other day for
$15 or so... don't know how good they are though.

[javeryh]

I use forstner bits to drill out the holes and I space them 1-3/8" on center.

[stace]

Thanks Guys 

[Malenko]

I used a spade bit, its all I had 

[NoOne=NBA=]

I use forstner bits to drill out the holes and I space them 1-3/8" on center.

Ditto here.

More important than the type of bit you use is making sure that you are not drilling the hole at an angle.
I don't know how many times I've seen a "defective button" that suddenly worked when you let up some pressure on the keeper nut.

[Avrus]

I used a spade bit and the point on the spade bit allows you to line up the button exactly.

[ArtsNFartsNCrafts]

I purchased my push buttons from ultimarc.  Anyone know the specs on these as far as proper spacing and spade-bit size for drilling?

Thanks!

[Hoopz]

Most buttons are spaced 1.5" apart, centre to centre.

[ArtsNFartsNCrafts]

Ah, so it is the same.  Good deal.  Thanks!