Instructables

Step 6: Dome The Cap

Picture of Dome The Cap
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Find two carriage bolts; one larger then the other. File off any letters from the head of the bolts. Using the larger carriage bolt, hammer a convex shape into a scrap piece of wood. Place the cap over the indentation and use the smaller carriage bolt to hammer the initial shape of the dome. After blows to the center, offset the cap to fill out the dome shape in the cap.

Lay the carriage bolt on the edge of the anvil. Hammer the cap over the edge of the bolt to finish off the shaping.
 
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kondzio292 years ago
I'm using these bolts too!
really great stuff :D