Anyone can design and print their own SNOW RIP doll.
Roberta's only friend in the beginning of the book Roe-bot Girl: Best Friend App is a Snowman Robot doll she calls Snow. Snow’s full name was SNOW RIP, which was an acronym for “So no one within reach inclined to play”. Snow is interactive and lights up later on in the book but at the beginning of the book he does not work anymore. This Instructable will show how to make the doll.
This is how you can design and print your own form of the doll with TinkerCAD.
Shown below is a Mini Snow doll in his vacation cottage.
I pictured the doll in the book to be an 18" doll similar in size to an American Girl Doll. I designed and printed the example in the picture to be about the size of an "Mini American Girl" doll, he ended up being about 7".
This Instructable has assumed you have a log in at TinkerCAD and have gone through the Lessons. (It is free)
If you want to have a cloth body for Snow then you'll have to have some cloth and a way to sew it. This is not covered in this Instructable.
Step 1: Decide on Size
I printed a Mini Snow due to cost and machine printing area. The 3D printer we had at the time did not have the print area to print a full size American Girl doll sized head. I did not want to print in parts and glue together so I got quotes from other printers and they were in the hundreds of dollars for other printers to print the parts. Thus to save money I went with a Mini Snow, I could print myself.
Choose your size of doll for this project. TinkerCAD does not mass re-size, you will have to re-size each part individually.
There will be 3-5 parts you will be designing.
Arm (I designed one and used it twice, if you want two different arms you'll have to design two different arms.)
Leg (I designed one and used it twice, if you want two different legs you'll have to design two different legs.)
Draw the general idea out on a piece of paper.
I measured the parts of an American Girl Mini Doll for mine. I decided I wanted Snow to stand and not be able to wear shoes, so his feet are bigger. I did not think about his hands/claws and made those too big to fit in most clothing. Since you are designing your own doll you do not need to have all the measurements below. The drawings are just giving you an idea on what to design.
Note: I used the smallest Zip Ties I could find then added about an 1/8 inch to the part where the Zip Ties attach to the cloth body. "Size this to your Zip Ties" remember to add the extra height of the cloth you are going to use for the body. If you decide to make a 3D printed body you do not need this part.