Just designed and printed some lens boards for the Sinar (and also Horseman L45) system. These are the 140mm lens boards. I haven't seen any other ones on the internet so I had to design them myself. They seem to work pretty well and are very solid if following my instructions.
https://www.thingiverse.com/thing:5196070
https://drive.google.com/file/d/1uzD...ew?usp=sharing
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