Hole Gauge Calibration Diameter block test, with raised numbers

prusaprinters

I kept guessing at hole sizes for support rod inserts into models.  This print allows for rod insertion testing to know what hole size to put into a print before printing.  The base is 8mm tall with 2mm raised lettering.  This gives enough clearance to ‘Cut’ the bottom and top off to the size you wish to use.  I also attached a .3mf file that is cut into 3 sizes (I know the top of the 5.x is cut, whoops) if you wanted smaller sizes in case of print failure or the option to print only smaller or larger holes. ============== Brass and Nickel Rods ==============Brass Round Rods Bar Assorted Diameter 2-8mm https://www.amazon.com/gp/product/B07KS576WJ/Generic rule, add 0.3 mm for brass rod.  0.2 is TIGHT2 mm --->  2.3 mm HOLE2.5 mm ---> 2.8 mm HOLE3 mm ---> 3.3 mm  HOLE4 mm ---> 4.3 mm HOLE5 mm ---> 5.3 mm HOLE6 mm ---> 6.3 mm HOLE8 mm ---> 8.3 mm HOLE 2 mm STEM Toys Shaft Round Rod Axles for DIY Toy RC Car Boat Helicopterhttps://www.amazon.com/gp/product/B07D2WSF29/2 mm  --->  2.3mm HOLE ============== Threaded Rods ==============#8-32 = 0.1631 = 4.14 mm ---> 4.3 mm HOLE  https://www.homedepot.com/p/8-32-tpi-x-36-in-Zinc-Plated-Threaded-Rod-802027/2042766575/16 = 0.3125 = 7.94 mm ---> 8.0 mm HOLE  https://www.homedepot.com/p/Everbilt-5-16-in-x-36-in-Zinc-Plated-Fine-Threaded-Rod-800807/204325651 3/8 = 0.375  = 9.525 mm (website, unverified) --->     https://www.homedepot.com/p/Everbilt-3-8-in-x-36-in-Zinc-Plated-Fine-Threaded-Rod-800817/204325652  ============== Fiberglass Rods ==============White fiberglass rods = 8 mm (caliper)  --->  8.1mm HOLE Fiberglass Reflective Rod in Orange  https://www.homedepot.com/p/Everbilt-48-in-Reflective-Rod-in-Orange-31474/3046853190.375 in (9.5mm) (website, unverified)  --->   8.1mm HOLE ============== Wood Dowels ==============3/16 ---> 5.3mm HOLEhttps://www.homedepot.com/p/3-16-in-x-48-in-Raw-Wood-Round-Dowel-HDDH31648/2043543695/16  = 7.94 mm ---> 8.1mm HOLEhttps://www.homedepot.com/p/6405U-5-16-in-x-5-16-in-x-48-in-Hardwood-Round-Dowel-10001802/2033340623/8 = 9.5 mm dowel ---> 10.1 HOLE  https://www.homedepot.com/p/3-8-in-x-48-in-Raw-Wood-Round-Dowel-HDDH3848/2043543717/8 = 22.225 mm --->  BIGGER THAN 16mm, unable to test.  https://www.homedepot.com/p/6414U-7-8-in-x-7-8-in-x-48-in-Hardwood-Round-Dowel-10001807/203334067-----------------------------https://www.cableorganizer.com/learning-center/how-to/conversion-chart-millimeters-decimals-fractions.htmlhttps://tengtoolsusa.com/blogs/news/fractions-to-decimals-to-inches-to-mm-conversion-charthttps://www.reade.com/reade-resources/reference-educational/reade-reference-chart-chemical-conversion/fractions-to-decimals-to-inches-to-mm-conversion-chart-----------------------------