Al carburetor cover.

[steve.murphy]

Thanks for posting , you made it look easy!

[drivejunk]

Nice show of planning, procedure, and patience with a fine result. I like to say, in reference to job ability limits, that I can only make what someone asks me to. The trick is in getting asked. Your patron shows a great deal of confidence in you and that tells a lot. You made a nice deep piece there and it makes me even more curious what working with aluminum is like. Thanks for posting.

[Jaroslav]

Thanks guys. I hope it helps someone. Yes, it's easy part, for me. The good thing is that I know in advance that it will work. Final adjustments to the piece are still possible. If is the material thick sufficiently .
The customer is really testing my endurance. If someone insists on details, it is necessary to fulfill their wishes. It is good that he can see the process that he cannot see elsewhere. We play a game on each other's nerve fibers. It's often a big symphony...
It took about 6 hours for preparation and the first shaping. Another 6 hours for changing the shape according to the customer and preparing for the ribs, making the tool and testing. You just don't speed it up. It's about the result. It should be something to look at and you shouldn't be ashamed of it. There should not be an unnecessary layer of putty on it.

[Jaroslav]

Shaping the ribs.
I reliably cut the holes for the ribs with a vibrating saw.
It leaves minimal damage and burrs to the material.
Shaping in Pullmax. I made a test piece first.
Before completion, I received a historical photo from the customer. I adjusted the shape according to her. I think if he polishes the thing, he won't have to paint it.

[dwmh]

Great result with simple tooling.

[Jaroslav]

Thank you David, I wanted to show that it can be done with simple means and tools. Except for the big Eckold, he did a good job. But it is also doable manually. By hand machine. It would also be possible to press out the ribs with a tool clamped in a vice on the table. The correct procedure is necessary - understanding the direction of the fibers of the material.
I still grinded it a bit.

[Antoine_P]

Thanks for sharing the process..really interesting and a lot to learn from!
Antoine

[Gojeep]

Great result.

[Jaroslav]

Thanks guys. For this part, I knew the result in advance with great certainty. I was a bit taken aback by the final edits, but it worked out too.
So I hope it helped you.

[Steve Hamilton]

hi Jaro
That is a very nice explanation. Thanks for the step by step process. Great end result!