Automatic, Repeatable AFK Nether Star Farm Without MFFS

[qsmithy]

I want to make an automatic wither boss farm which will continuously kill the wither boss as many times as there are items to create it, or a specific number of times as defined by the player. There is a video on YouTube which I can't find at the time where the create makes the wither go into a cart (as per usual), partially suffocates it, and then has a turtle finish it off. I don't need this exact design, but this was an example of something which would make it repeatable, automatic, and you could go afk (in a safe place just to be sure) while it happens.

I don't know how to build it, time the deployers with the cart, or reallty anything else. The world will be in a Mytcraft age, so getting bluetricty for the item sorter won't be a problem. I would love it if someone could make this, and post a video of how to make it, since it was nearly impossible to only go by the video or just instructions alone.

I am doing this in the Mindcrack Pack.

 

[RedBoss]

You may need to go into creative and try some things on your own. Thats an extremely specific request.

 

[qsmithy]

I know it's specific, but I was wondering if someone could explain the more general parts which many people do, such as using deployers to create a wither, and how to make a track with spaces in it to let the wither suffocate without it exploding and therefore escaping. Once I do that, I think I can do more of the specifics.

I found the video which I want its function to replicate, though the design likely won't be the exactly the same.

What I'm thinking of is to built it in parts:
)Chest with items sorted and distributed into the deployers.
)How to time the deployers to make the wither, then send out the cart to trap it.
)How to make the holding cage.
)How to make the track which will send the wither at certain points at certain times. It seems the wither is sent onto a cart while on top of a powered boarding track. Then it goes into a holding track and is released after exploding...while suffocating the entire time. Finally, it goes into a fall cage where the turtle kills it for you.
)How to redstone the track timing
)Make the nether star and cart retrieving system
)How to make it repeatable through some method, computercraft or otherwise.

 

[qsmithy]

I got a system of sorts working, though, I can't seem to get a melee turtle to attack the wither for the life of me. The way I have it setup now is suffocation brings it down to around half health and it goes down slowly after the explosion. If someone could explain how to get the turtle to attack it, I would appreciate it.