The method used for tool position setting is a matter of personal choice but this is what I do.

A Rostock style delta bot with the parts which are typically 3D printed made from medium density fiberboard (MDF). It uses a home made hot end.

It took me 18 long nights to build it

Designed from the ground up as a low cost, highly scalable delta printer. This printer has been built as small as carry on luggage size, up to an 18in wide print surface and is capable of larger. Approximate cost is low to mid $500 range start to finish, including electronics for a basic model.

A work in progress. working to refine the print head/carriage to integrate a bed level probe directly into the print head.

Base is a Delta Kossel Printer modified to be build with openbuild parts like vslot 20x40 , pulley .... It inclued the latest modification for auto level : FSR

I've made a 3D printer

OpenRail attached to a 19" rackmount 15U box.

I hope to have a working prototype built soon.

My first Build with V-slot

You need some mechanical and electronic experience. This is NOT a novice undertaking! a familiarity with linux a plus (but not necessary). Basic woodworking and metal fabrication a big plus as well.

Berrybot inspired delta 3d printer with a few other tweaks and modifications.

Phlatprinter MKII Foam Cutting Machine

A Prusa i3 design running on Open Build's mini V wheels

A simple low cost rotomolder.

Converting a ShapeOKO into a 3D printer.