3 i thought about some kind of bushing

4:44 PM

True, it might not be so difficult to built. Maybe even as a little serie to sell individually on the bazar, and to be integrate by builder without mill. @Fritz @easymoulds to get an idea, how much would you sell (roughly) these 4 blocks on the bazar if you had to built a small serie of them ? (A block for example is 140x70x30).

Yes that would make much more sense, after all the whole idea with PP is that there are machine shops to build the machines and workshops to use them. If the machine shops are equipped to build the complex parts such as gearboxes, then workshops can build their own frame to carry them, per a recognized design or modify/design their own. Sadly I don't have any workshop machinery or funding, I would be prototyping this myself. The external dimensions of the gearbox in my drawing are 90 x 90 x 150 to accommodate the 16 tooth spur gear, mod 3. The plates are 30mm thick.

90 x 90 fits nicely inside a 100x100 box section crossbeam

Yann

True, it might not be so difficult to built. Maybe even as a little serie to sell individually on the bazar, and to be integrate by builder without mill. @Fritz @easymoulds to get an idea, how much would you sell (roughly) these 4 blocks on the bazar if you had to built a small serie of them ? (A block for example is 140x70x30).

Like a very rough guess can be to multiply the material price x6 then you end up the series for 50-100pcs. ~150€/set. Would get lower in a full-kit environment where the side-costs (communication/sale/marketing) are reduced - in a kit around 80€ I assume. As soon as the design is ready you can check via hubs.com / xometry.eu I'm not really in the sphere of heavy-material removal^^ (edited)

hubs and xometry are pretty expensive i would say, I think you're right, around 80 bucks but I think those guys will want more than that

Agree. I think to get reasonable quotes you have to start at 100 sets always, under that they are industrial prototyping prices - which are usually out of our customers range