Not quite sure, I just started with the game today. I already have a sickass schematic, but I want a blade D: I only have one from Killdozer but it looks like a barber's shaver razer.
The Dozer sucks. It has a range of 1 and hits almost as low as a storable lazer blade. The only good thing about it is the impact force, IF you manage to hit something with it.
You'll get plenty of laser blades eventually.
When you start the game, how you can choose between 3 companies or none, if you pick none, you start with a laser blade with a range of 6 or 8 I forget, and about 15k damage.
Once you get ending 1 and 2, everything in the shop gets put into your inventory, and a few new things show up in the shop.
I think I'm still missing parts because a few schematics say I don't have the parts for them.