Pinch sticks / Bar gauge holder
thingiverse
Print two of these to hold two sticks measuring 4x22mm each by however long you want. To create pinch sticks to transfer measurements without using a ruler. Or check for squareness. Used M4 knobs from Amazon, thread size and length is M4 by about 20mm long (I bought M4x25 and chopped a bit off). The sticks are pointed on one end, and the 3d printed holders are threaded through one stick to clamp the other one (mounted in opposite ways). This way the holders themselves remain positioned on the end of each stick and cannot slide. This is better than using a very short screw to fix them (as in the Veritas bar gauge heads). Knobs: https://www.amazon.nl/-/en/dp/B08RP6TDB6/ref=sr_1_10?crid=2BAT74FNQP3HD&keywords=m4x20+knop&qid=1663322444&sprefix=m4x20+knob%2Caps%2C134&sr=8-10 Inserts: https://www.amazon.nl/dp/B07YSV66Y5/ref=sr_1_1_sspa?keywords=ruthex+m4&qid=1663322491&sprefix=ruthex+%2Caps%2C135&sr=8-1-spons&psc=1
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