Created a simple gridfinity-compatible bin to hold the seven threaded insert tips that are available for the Pinecil.

It is meant to be used as an extension to the base of the Pinecil and Tip holder by @Waschtl. (So the setup allows for holding a Pinecil with inserted tip, four additional tips (one set as sold by PINE64) as well as the adapter for the threaded insert tips with the tips themselves on the side.

Current model is 3u in height, as this felt the least wasteful.
More height variations, as well as a version with holes to push-fit magnets will be added in the following days.

Tolerances are not too tight, but the tips barely wiggle, so it should be printable on almost any printer - if you have problems with them being too loose of too tight, feel free to tell me!