"Real" belts are made in layers with the rubber on the inside and just one layer of kevlar or steel over the rubber then and then a layer of nylon. You can't have fiber distributed throughout the belt as it will cause shear force as its belt bends. All the fiber needs to be in just one thin layer.
If I really wanted to do this, I'd - make a form that looks like a 133T pulley - Print a belt in TPU (a rubber-like printable plastic) - stretch the belt over the form. - Apply glue (like 3M's "5200" polyurethane) in a thin layer to the outer surface of the belt. - Wrap the belt with a polyester thread. Maybe even mount the form to a motor and spin it. - smooth over the glue to encapsulate the thread. 3M claims their 5200 is "permanent" and they are correct. I bet the above would last a long time. Printable TPU is very tough and durable. The PLA belt does not stretch but does become more flexible with use On Thu, Jun 11, 2020 at 5:03 AM Thaddeus Waldner <thadw...@gmail.com> wrote: > A while back I read an article about feeding a thread (Fiberglas, Kevlar, > etc.) through the print nozzle. This would be an ideal application for that. > > > On Jun 11, 2020, at 3:55 AM, andy pugh <bodge...@gmail.com> wrote: > > > > On Thu, 11 Jun 2020 at 07:06, Chris Albertson < > albertson.ch...@gmail.com> wrote: > > > >> This worked so well that I might try my spool of medium soft TPU > plastic. > >> I bet I could print a belt that might last for weeks. But then it might > >> work worse bcause TPU can stretch but PLA doesn't. > > > > A layer of glass-fibre reinforced parcel tape on the outside would > > counter the stretch. > > > > One application where a 3D printed version would probably work very > > well would be a floating belt tensioner. > > https://www.renold.com/products/accessories/roll-ring/ > > > > -- > > atp > > "A motorcycle is a bicycle with a pandemonium attachment and is > > designed for the especial use of mechanical geniuses, daredevils and > > lunatics." > > — George Fitch, Atlanta Constitution Newspaper, 1912 > > > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
