Lumbar extension for Gregory Baltoro backpacks
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A 6mm extension to add more lumbar support to Baltoro model backpacks.
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Model information
- Source
- Printables
- Category
- Outdoor Sports
- License
- Creative Commons — Public Domain
The later model Gregory Baltoro backpacks no longer have an adjustable lumbar support. I needed a little more. So I printed this piece. (Out of TPU.)
Designing and iterating the model itself wasn't the hard part. The hard part was 1) finding the best slicer settings to keep the support flexible in the right directions and 2) mounting it on the backpack.
I've included my .3mf from Orca and screen shots of the crucial settings to help you print it. The most important setting is concentric internal solid infill.
I used an industrial flexible glue to tack the support on the Baltoro. But Gregory uses a non-stick plastic on their OEM lumbar support, making it difficult to achieve a long lasting bond for this extension.