Howto sketch a tooth profile alongside a path

[Helmi74]

Hey guys,

once again i've got a challenge of which i'm unsure if there's a good way to draw this with fusion or if i have do it completely manually.

See this picture:

The darker body that fills the image has these 4 slots - 2 from each side - 2 straigt ones and 2 going around the curve to the bottom. The lighter rectangles from the side are tooth belt dummys coming into these slots.

I'd now like to draw the tooth profile on the belt dummys as well as on the slots - the straight ones and the curved ones. The belts are GT2 belts It's not that important for the profile to match the form of the original profile to 100% - only the gaps need to fit so the real belts will later fit into the printed parts. I already did a test a while ago which worked good but i only had a few mms drawn by hand and no curves.

Now i wonder if there's a smart way to only draw this profile once and then repeat it along the path also around the curves in a way to make it fit. I don't see a pattern on path feature for the sketch mode so i though i'd ask.

Thanks for helping!

[heyarn]

I have the same problem, and am trying to model the exact same belts. Would someone be able to point us in the right direction? 🙂

[innovatenate]

This isn't perfect but the below sample may get you pretty close or close enough. I used the pattern along path command to pattern an extrude (cut) along a belt. 

https://myhub.autodesk360.com/ue29c8e8f/shares/public/SH7f1edQT22b515c761ea37830ac8a3d65ae

Let me know if this helps or if you have any questions. 

Thanks,

[etfrench]

Consider re-designing the part to loop the belt back on itself to do the locking. The slot would need to be 2.25mm for this.  Attached is a sample.

or

If the teeth are on the inside of curve, then you could use a section of a pulley to get the right form for the corner.  SDP/SI and Misumi both have GT2-2mm models.