Wall thickness caliper
thingiverse
Had often to measure up wall thinckness for door frames on my job. Make me now a wall thickness caliper. the plastic parts are sketch by me in Fusion360 and printed with my CR-10. the aluminium ruler is from ebay.de https://www.ebay.de/itm/313506306622?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20180105095853%26meid%3D905861945df0467faf42fdb76d4a542f%26pid%3D100903%26rk%3D1%26rkt%3D20%26mehot%3Dnone%26sd%3D313506306622%26itm%3D313506306622%26pmt%3D1%26noa%3D1%26pg%3D2510209%26brand%3DMarkenlos&_trksid=p2510209.c100903.m5276 maybe you have a little bit sandig the plastic parts
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