Calculating bolt patterns

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justin caise
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Posts: 28
Joined: Sat Dec 10, 2011 2:40 am
SELF INTRODUCTION: Seemingly still just a wannabe, as I've not actually built a chopper yet. But I know what I'm doing. I'm startin slow, studying, tooling up, and thinking about it properly - someone here once said "The important thing about finishing your first build is to not let your ambitions exceed your abilities." I'm holdin my ambitions just a little ahead of my abilites so's I can stay motivated. Gary said the balance of time and money is key - So, I'm working that, too. Just reallly grateful to find that this incredible resource is still alive and accessible.
I'm hoping to actually connect with and make some friends here this time.
I'm in So NH repairing and riding the low buck jap junk for now... practicing, discovering my fav riding style, learning CAD, machining, designing and building tools. Lonely. I've got friends and family, and riding buds but no close chopper freaks to hold a torch. Aaaaand, I've said too much again....
Location: So New Hampshire, USA

Calculating bolt patterns

Post by justin caise »

A friend of mine has enlisted me for machining some wheel spacers for his hot rod Ford. He's putting chevy wheels on it, and I'm all for mix and match customizing.

In my efforts to calculate the placement of the bolt holes I found these gems.

One is a video explaining the maths.

The other is a website calculator that does the maths for you.

https://youtu.be/PNKyeI5RoKk

and theoreticalmachinist.com

I know this'll come in handy for a thousand chopper projects.
Your car should be old style
Your clothes rather new
Your chopper - a tasteful mix of the two.
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