T2.5 Pulley Template

[Anonymous]

Hello all,

Context:

I have recently been modelling some custom parts for a personal project on Autodesk Inventor. I have most of the parts finished, but the last one is causing me some trouble. Once finished, I will send off my .stl files to be 3D printed (probably in PLA) via an incredibly useful and well-priced site called 3D Hubs.

My task:

I want to model a 64 tooth T2.5 timing belt pulley.

My problem:

I know very little about gears (I think timing belt pulleys count as gears). Obviously I understand the fundermental functions of a gear. I understand how gear ratios affect power and I understand a little bit about tooth profiles (tooth pitch, diametrical pitch, module etc...) but I don't know enough to confidently model a T2.5 timing belt pulley in Inventor. Whatsmore, I don't really plan on learning. I would like to simply download a template for this timing belt pulley and import it straight into Inventor.

A stupid and pointless metaphor:

This analogy may not make a whole lot of sence, but I'll put it here anyway to try and explain why I don't intend on learning how to model this part. A car designer doesn't need to know every detail of how a halogen bulb works, understanding that is the job of the light designer, all the car designer needs to know is the fundermentals of the headlight unit. Similarly, I unstand the purpose and basic use of this timing belt pulley, but I don't need to know exactly how the tooth-profile and everything works.

I apologise for typos, this was written in a rush. Thank you all in advance!

[swalton · Accepted solution]

You can get 3d cad files from Stock Drive Products for lots of different pulleys. 

http://www.sdp-si.com/eStore/Catalog#

Take a look there and see if you can't get a model of what you want.  I only see a 60 and a 72 tooth pulley with your profile, so you might consider changing your design to use stock parts.

You can also check out cbliss's website to see if anyone made an ipart for your tooth profile. http://www.cbliss.com/inventor/

[Anonymous]

That was incredibly helpful! I will remember this resource for the future. Thank you very much 🙂