Note:
I am using this hex hooks:
https://www.printables.com/model/409007-modular-hooks-for-uppspelskadis-board
Link:
These are the clamps I use:
https://es.aliexpress.com/item/1005005777981037.html?spm=a2g0o.productlist.main.1.3aa07rkY7rkYUr&algo_pvid=dfb82f61-9e48-43a8-9c03-dec62e5bdd1b&algo_exp_id=dfb82f61-9e48-43a8-9c03-dec62e5bdd1b-0&pdp_npi=4%40dis%21EUR%217.11%217.11%21%21%217.37%217.37%21%40211b812f17136912038365384e47f5%2112000034318015431%21sea%21ES%212047524445%21&curPageLogUid=wDOzfAuAZHRK&utparam-url=scene%3Asearch%7Cquery_from%3A
The author remixed this model.
Added a groove to fit the clamps with the stopper pins.