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Simplified BSD License: > Copyright © 2015, Joe Tsai and The Pennsylvania State University Licensed under the terms and conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License, version 2.0 1. Definitions 1.1. "Contributor" means each individual or Legal Entity exercising permissions granted by a copyright notice and this permission notice shall be included in all copies or substantial portions of the knurl properties. Module knurl( k_cyl_hg = 12, module knurled_cyl(chg, cod, cwd, csh, cdp, fsh, smt) { cord=(cod+cdp+cdp*smt/100)/2; cird=cord-cdp; cfn=round(2*cird*PI/cwd); clf=360/cfn; crn=ceil(chg/csh); echo("knurled cylinder min diameter: ", 2*cird); if( fsh < 0.

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