With all this discussion of rotaries and 4-th axes, I thought I'd toss in the 4 axis router project I undertook during the last three weeks for the purpose of making some small Delrin parts for a student's engineering senior project. The parts could not be made on our cnc lathe or 3 axis mill, so I pulled parts out of the cupboards in my manufacturing lab, cobbled together a purpose-built machine and made the first part yesterday.
https://photos.app.goo.gl/TYToR6kMfNzPg8Y69 Key components are a Taig 5C headstock reused from another senior project (automatic collet closer) belt driven from an Automation Direct brushless servo, and three linear actuators with NEMA17 steppers attached. The router motor was borrowed from a friend who had upgraded to a watercooled ER20 spindle. I would dearly love to make the same upgrade. It was painful having that router run for three hours yesterday even with good ear protectors. Control is LCNC 2.7 with a Mesa 5I25 and 7I76 borrowed from a cnc foam cutter project. I wouldn't try to cut anything heavier than Delrin with this machine, but it worked very well for its intended purpose. -- Ralph _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
