Vulcan Techtree

A proposed tech tree starting from a few relatively simple parts.

Big

• 3D printer
• Circular saw
• Drill
• BLDC motor and driver
• good soldering iron (TS-80, TS-100)

Small

• drill bits
• taps
• large metal square
• multimeter

Consumable

• plywood
• screws
• wood glue
• sand paper
• threaded rod
• nuts
• washers

Stage 1

• Straight edge for circular saw
• guide for drill

Stage 2

• Convert circular saw to table saw
• convert drill to mock-press

Later

• Modify circular saw to use BLDC
• Modify drill to use BLDC
• ACME die
• Mill press (with thrust bearings)
• Produce Bearings
• Lathe

Dependence

• lathe w/ 3|4 jaw → simple collets

With an acme die and some heat treating I can take soft iron/steel, cut a threaded rod, then harden it. Keeping it straight will be a challenge. With acme threaded rod it will be possible to build a good mill press.