hot rodding penn 3/0

[Bryan Young]

Bryan, the spring for the second dog is the hardest part for me. It looks like you used a leaf spring. Details?

I knew I should have taken pictures of the dog set-up.

I cut a groove in the side plate to hold the leaf spring and bent it toward the main gear.  I also cut a groove in the dog so that leaf spring would sit in the dog and would not slide out.

[Alto Mare]

There is lots of information here, just look around. Here is one option:
http://alantani.com/index.php?topic=5473.0

and another:
http://alantani.com/index.php?topic=7864.0
The pin and coiled spring has been working out best for me.

[Keta]

The pin and coiled spring has been working out best for me.

I have dogs with slots and "pins" drawn up but haven't cut any however I've found that the flat spring is easier for me to deal with.