Hi There, i have tried your mod today and it looks very nice so far. However without the ability to Handcraft stuff i had to wait arround 1,5h to build the required materials with this one constructor until reaching part assembly research, that allows for reinforced iron plates and assemblers. Unfortunately an Assembler cannot be built since there is no way to craft a reinforced plate without an assembler that needs reinforced plates. So instead of giving the Assembler to the player I would suggest to allow Handcrafting for
- Iron plates and Iron rods when researching of the "hub" is made
- Wires and Cables with Hub research 1
- Concrete and Screws with Hub research 2
- Reinforced Plates (add to Hub upgrade 3) with Hub Upgrade 3.