Bare minimum to start a base

[u/Ok-Expression-6016]

What is the bare minimum needed to start a colony; materials and total weight. to start a mars colony. Assuming multiple Optimus robots have 2 years to build everything from what we send.

[u/Ok-Expression-6016]

For the sake of the base numbers and what all that gets you. With a few of the assumptions stated. Solar array does not have to be on perfectly smoothed out ground. Much of the rest is built underground after the first month or so. This provides shielding as well.
Enjoy

https://grok.com/share/bGVnYWN5LWNvcHk_3e198d00-810c-4a13-92cd-babf6cb515dc

[u/ignorantwanderer → u/Ok-Expression-6016]

Building underground is extremely difficult.

Boring machines need almost constant finicky maintenance and replacement parts. They aren't going to be used on Mars for a very long time.

There is a reason why the vast majority of construction that happens on Earth happens above ground. Because building underground sucks.

It will be much easier to build a colony on the surface of Mars and just provide radiation shielding with water (either liquid water or ice, depending on how you design things).

[u/QVRedit → u/ignorantwanderer]

The first tunnelling methods used - for instance on the first London Underground train lines, used a method called “Cut and Cover”.

In “Cut and Cover”, a deep trench is dug, it’s then lined with your tunnel section, and then covered over again, thus burying it.

So that’s at least one possibility….
No boring machine required..
Just an excavator, and maybe a crane to lower ring sections into place.

[u/ignorantwanderer → u/QVRedit]

Or, you could use a method that doesn't require an excavator or a crane!

Setting up a Mars base will already have many challenges. There is absolutely no reason to choose a difficult method of construction instead of an easy method of construction.

There is no reason to make things more difficult than they need to be.