I was able to complete my axle fixture last night.
I like to “blast tack” components so I can simply weld over the top of them on final weld. To do this I bump my amperage up to nearly double what I would be welding at for the specific material thickness. Then just max the pedal and a small fusion tack will form. This is done very fast and works great when TIG welding because it will allow you to hold a component with one hand while holding the TIG torch with the other to tack.
Bungs final welded.
To prevent the tubing from bowing or pulling I place a TIG rod under the middle and clamp each end flat to the table. Basically pre-loading it to compensate for the contraction.
Bungs welded on the two slider pieces.
Next I cut out the two straddle supports and blast tacked them in a couple places to make them symmetrical.
Blended and speed holes added.
Next I clamped the vertical support tubes in the mill vise and found the middle with an edge finder. DRO’s are so awesome.
Cutting a 1/4” slot to a depth of .800”.
Test fit.
Tacked in position.
Final welding completed.
All components completed and ready to bolt together.
Ready for use and another item knocked off the white board.
Thanks for looking.
Mike