Quite an Unusual one

[Boyan Silyavski]

I know you want a machine to do everything but I was thinking about this cheap 2 axis idea.
Hammer mounted in a steel frame, the hammer can pivot.
A linear actuator connected to the top of the hammer can pivot it to the required angle.
The base rotates under the hammer.



This is not the one I would use but is just an example
18" STROKE LINEAR ACTUATOR | eBay

Eddy,
Thanks!
This is a very fresh idea. I would say the best idea till now.
It still will have to have Z and rotating axis. But this great idea eliminates the gantry and bearings blocks there. It will be best to use screw jack servo motor or similar instead the actuator.

I see a lot of +++:
Only 2 cheap big bearings will support the Z, where the hammer is, the enclosed structure will be more rigid and so on....

It seems doable. I will start working on this design and definitely will bring it to life when i have the big CNC machine ready.

By the way i have my eyes on big THK steel slew ring roller bearings in ebay. For the shell mount rotation. Will dig deeper these days. They ask like 500eur for 60cm diameter bearing assembly which is incredibly cheap. Though the one that suits me seems not to have mounting holes for the actual ring. Will investigate further.


However the Big question for me here is - How i would control that thing? What software? This is quite unclear to me.