The clutch dome has received something of a battering from the sheet metal hammers in recent weeks and is now almost usable. I partly welded up one of the splits in it but as we are coming to the end of the primary chain guard project it's time to repair the two broken screw lugs and finish welding the split.
This is the setup. Hidden under there is a piece of 2-in angle held vertically in the vice with two magnetic welding clamps attached to it. The clutch dome is sitting on top of a clamps with the remains of the screw hole on a copper plate on top of the vice.
I've cut the old lug off and use the lid to create a straight edge. I've butted it up to a scrap of 1.2 mm sheet steel tightly enough to make an autogenous weld:
Here's the dome with two lug repairs cut to somewhere near the right size, with an accurate template copied from one of the good lugs.
These shape up quite nicely. The holes are drilled with a step drill to avoid the three-sided shape you'll get drilling sheet metal with a twist drill.
The next step is to make some proper screws...
Here's the dome back in place with all the lugs drilled and shaped.
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