Have you tried your Singer (s) on heavier materials under motor power?
I'm getting some satisfying results from a 99K manual with 100/16 denim and leather needles - easy to judge by feel how many layers of vinyl / cordura / reclaimed leather it can cope with, and slow enough to avoid most mistakes.
I could probably fit a motor to mine , but at this point I'm really looking for opinions regarding the 'worth' of such a conversion...
Funnily enough I tested on this offcut, it was no trouble.
When it was manual & I made bags the thicker seams where multilayers came together due to my poor design were hard to punch through, I guess there's a point where the motor will struggle the same.
Have you tried your Singer (s) on heavier materials under motor power?
I'm getting some satisfying results from a 99K manual with 100/16 denim and leather needles - easy to judge by feel how many layers of vinyl / cordura / reclaimed leather it can cope with, and slow enough to avoid most mistakes.
I could probably fit a motor to mine , but at this point I'm really looking for opinions regarding the 'worth' of such a conversion...