Required parts: Short Allen keys (6,5,4,3) unfortunately to make one that fits requires really short Allen keys I used some from I think the 90's but you might need to cut some, 6x3mm magnets, M3 x D5.0 x L4.0 heat-set inserts, M3 x 10 bolt, Glue for magnets in the tool slide.
Print the slide in TPU, and the rest in a ridged material I used PETG as it will be outside a good bit.
I printed the TPU slide flat without supports, the mount positioned as pictured also no support but shouldn't matter if they are on for it, and the tool slide holder standing up with normal supports.
I have only tested with a WTB volt saddle but I think it should work with other saddles as long as they are not to thick in the back. I have had it on the bike for many rides now and seems to be good on moderate jump trails and while driving with the bike on the back of the car, I've not had problems with it coming loose.
The author marked this model as their own original creation.