On Wednesday 17 June 2020 22:10:02 Chris Albertson wrote: > Go to McMaster Carr and find a stock gear you like. If they don't > have one you like then Grainger, SPD/SI or Boston Gear will > > All those sites allow you to download a CAD file of the stock gear. > Of the CAD file types "step" (or ".stp") is the most universal. > > Then you use your CAD software to modify it. Use OpenSCAD if you like > but OpenSCAD has the steepest learning curve by far of anything you > will find. It is not for casual users.
Yet its script like language allowed me to modify it with a reasonable expectation that it will work. It took me about 10 minutes to convert a sprocket with a hub and flanges, to make it into the printable half sprocket with one flange I could make a much stronger alu hub and other edge flange for. I'm totally lost in freecad long before ten minutes is up. > One of the direct modeling > systems works pretty much like you would in the shop where you think > in terms of drilling holes and making cuts, not in terms of > programming to create geometry. > > On Wed, Jun 17, 2020 at 6:23 PM Gene Heskett <[email protected]> wrote: > > Greeting all; > > > > 3d Printer is working and actually making solid parts, now I need to > > make a couple gears. with enough muscle to drive this BS-1 clone. > > > > There's a parametric gear thing I have but its a sample of many gear > > styles and I don't know how to cut it apart and use just the > > external spur piece of it. I need something that openscad can > > handle. But there must be 1000 or more. Most proprietary so are > > non-starters. > > Thanks all. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
