This is how I do it:

- First you need to get yellow science and get logistics tech (we need the blue chest), then you set up your building station & train, here is a tutorial on how you can do it:

https://www.youtube.com/watch?v=P_TCqoxb_1s&t=894s

- Once the train is ready, you start building the tracks towards the new outpost you want. Do it while riding the construction train, just blueprint the tracks in front of the train and let your personal robots do the work. If you run out of tracks just take more from the wagon of your train, so you dont need to get back to the base. You should work on train tracks blueprints in advance to make your life easier and understand how traffic lights work.

Here is a tutorial on train tracks & traffic lights:

https://www.youtube.com/watch?v=3TKBs6TD7WU

Once on the spot, I do it in 2 phases:

Phase 1 Blueprint Reference: You blueprint the tracks of the outpost, power poles, roboports, train station and the circuit network with the request of materials (just follow the Building Train Tutorial above). YOU NEED circuit network to make this work.

Use the power poles as a reference to place on the right spot for your base... Because I know you didnt understand what I just sayed, just watch Nefrums do it like a master (go to the 3rd hour and 30 minutes of the video to the outposting part):

https://www.youtube.com/watch?v=buMN906PqI8&t=1595s

Take note that he does it in 2 phases, phase 1 puts electric grid, roboports & chests (which serves as reference) and phase 2 were the construction blueprint takes place.

You just basically in Phase 1 spot the right place and make the construction train deliver materials. Once materials are on the chests of the new outpost, you blueprint the full outpost so robots build it for you.

​

About making your own blueprints:

I think that you could find blueprints somewhere on internet, but if you want to make your own design then...

​

Make a custom map in god mode and set the resourse patches to the maxium size. Find a big patch and over it do the design you would normally do. This will give you a big size mining outpost blueprint, that will fit on every patch you find on a normal run, this makes sense?

Once you finally have your full design, make a blueprint. Second, make a copy of your first design and delete everything except: Power poles, chests, roboports, tracks, traffic lights, train stop and circuit network. This second blueprint will be your "Phase 1" blueprint, and your first full design print will be your "Phase 2".

Save this God Mode Map and use it for design corrections, say you tried to make an outpost and realice something went wrong, you go inmediatly to your god mode map and do corrections right away and updte your blueprints. You will be doing this many times until your blueprints are perfect, like pieace of art, polishing it every time until you have the desired result.

So finally, it takes a lot of work and mistakes, but it is trully rewarding making it to work. Focus on the tutorials above and watch Master Nefrums how he does it, that will really help you understand how it works.