Store: Framebuilding Tools
I’m no longer making any of these tools.
Compass Bicycles is selling an updated version of the Frame and Fork Alignment Gauge.
I have no intentions to offer the fork fixture anymore, but have left this page up for existing users.
Frame and Fork Alignment Gauge
When used with a height gauge and a surface plate the Frame and Fork Alignment Gauge allows you to easily check that the dropouts on a bicycle frame or fork are centered with respect to the dropouts, and that the dropouts have the proper spacing. This gauge can check 100mm, 120mm, 130mm, 135mm, and 145mm dropout spacing. The mounting tang is 8mm tall and works well with the clamp that comes with most height gauges. These are made out of 1/4″ thick 6061 aluminum on my CNC mill, and I check each one to make sure that it is within specifications.
The font has changed since these photos were taken, but the shape is identical.
This is too large for my deburring machine, so it is delivered as it comes off of the CNC mill and may have sharp edges. The height gauge shown in the last photo is not included.
I can ship these in a padded envelope to any US address for $5 or anywhere in the world for $14. I’m exploring cheaper options for international shipping.
Credit for the basic design comes from Martin Tweedy.
80/20 Fork Fixture Kit
This fork fixture kit builds quickly into an accurate fork fixture that also has a lot of features that make it convenient to use. There is a lot of brazing access, making it easier to get your torch into every corner of the crown. The toggle clamp makes it easy to install and remove the fork. The axle clamp uses one screw for vertical adjustment of the axle along the fixture, and another screw for rotating the axle in the clamp. The blade support quickly folds out of the way to increase brazing clearance.
This design was tested by 5 beta testers (3 of whom are professional builders) and myself. Here is what Dan Boxer had to say after using it for 3 months:
Having just built three forks on one of Alex’s jigs last week, I must tell you it’s a fine tool.
Easy to load, and un-load, with the fork parts during assembly. My build process requires a lot of this parts in parts out business, so anything that makes this easier is welcome. My other fork jig takes a bit more time to load and un-load, so it just seems to draw out the tedious parts of the process.
Kudos to Alex for a smart design at a very nice price!
and “I have been thinking more about your fork jig and realized it’s a tool I actually look forward to using again. I really couldn’t say that about my other one.”
The kit includes the unique and hard to find parts necessary to build the fixture. You will also need to purchase the extrusion, T-nuts, and some joining plates from 80/20 and small fasteners from a hardware store or other source. It is designed to work with an Anvil front dummy axle, which you can order from Anvil Bikes. A full list of necessary parts is included in the assembly instructions.
It can be assembled in under an hour using only a hacksaw, flat file, and allen keys.
Shipping is $10 in the US.