Hi, I am a biomedical engineering student that is looking for a resin that can be deformed radially. This is going to be used for a flex spline in a harmonic drive and I was wondering if there was a particular resin that might be good for this job.
1 Like
I think your best option might be the Durable resin. It has some flex, a low coefficient of friction (IIRC!) and I would expect it to last much longer than the Flexible resin. One of the Tough resins might also work. I haven’t used any of these resins as the flexible element in a harmonic drive but there might be someone else on the forum who might be able to give better guidance for this particular application.
I hope this helps.
1 Like
Hi tkGT,
Are you able to send me some photos of the CAD, a sense of the scale, and how much deformation is needed in the flexible part? It sounds like Flexible 80A would most likely be your best bet, but depending on how thick the part is, like @mrwakefield mentioned, Durable can bend a lot and still return to its original shape.
1 Like
Thank you for responding. I unable to send photos of the CAD at this time but I will as soon as I can. As for the measurements the harmonic drive is on the smaller side with the flex spline being around 25 mm in diameter. This is my first time designing a drive so I am not sure of the exact deformation required, but it needs to deform at least .5mm to be flush with the circular spline.
1 Like