3 Simple Ways to
Share What You Make

With Instructables you can share what you make with the world — and tap into an ever-growing community of creative experts.

PhotosPhotos

Share one or more photos of a project, recipe, or whatever you've made, quickly and easily.

Step by StepStep-By-Step

Share your step-by-step photos with text instructions of what you made so others can do it too!

VideoVideo

Share your how-to video. You'll need your embed code from a video site such as YouTube.

The simplest bicycle framebuilding jig I could come up with...

Step 7Head tube cones and angle indicator

Head tube cones and angle indicator
The head tube cones are just like the seat tube cone, only larger in diameter.

If you can't get cones made, you could probably rig up something like the simple version of the bottom bracket post, using four socket head allen bolts. You'll have to make one set for each headset size, and you might have to trim the lower corner bracket to make room for the down tube.

I have glued another piece from a cheapo tape measure to this beam so that I can locate the head tube at the right height. Just load in your head tube and slide the lower cone assembly up until you're at the right height.

The angle indicator is the same as the other one, too.

Set your head tube angle and you're ready to start loading tubes!
« Previous StepDownload PDFView All StepsNext Step »

Pro

Get More Out of Instructables

Already have an Account?

close

All Steps Viewing
View all steps of an Instructable on the same page when you're a Pro Member.

Upgrade to Pro today!
41
Followers
5
Author:drwelby
I grew up on Legos and the Whole Earth Catalog. These days: bike builder, map maker, trail sleuth.