I'm somewhere around $300 maybe a bit less into mine. I'll have to spend about $100 for a new 48v power supply so that will bump things up.
I managed to get my trap door drop mechanism sorted out last night. I will be boring the hole larger and making some bushings for the smaller cases. Needs to be big enough for the 50bmg. So far it works real well. Once bushings are made I'll mount the prox. switch so that can be operational.
View from the bottom.

I managed to get my trap door drop mechanism sorted out last night. I will be boring the hole larger and making some bushings for the smaller cases. Needs to be big enough for the 50bmg. So far it works real well. Once bushings are made I'll mount the prox. switch so that can be operational.
View from the bottom.
