Shortened and widened Printrbot Simple fan shroud

thingiverse

Here's my modified Printrbot Simple Metal fan shroud. It was based on the original fan shroud recommended in Step 13 of the official Simple Metal setup guide, but I decided to make some changes. By cutting off 6 mm from the tip, I widened the exit hole and reduced the massive amount of backdraft that can occur when using the stock 40 mm fan with the original shroud. This redesign is also featured in my comprehensive PB Simple fan shroud comparison article. If you want to get hands-on with this design, I've shared the Tinkercad source document for everyone's use.