Twin needle on a 146rb clone ?

[HoneyB]

Good day fellow leather workers

I’m having a hard time finding anything about using a twin/double needle on a 146rb-ish clone. 

Looking for a zigzag machine to bartack webbing, stitch loop splice in kernmantle rope, and would I’m curious about being able to use a twin needle to add for some variety in what I do.

thanks for your help !!

[CowboyBob]

All double needle machines need 2-bobbins(hooks) so you can't make a double needle out of it.if you did since it only has one bobbin, the stitch will look like a zig-zag on the bottom side,causing the thread to wear through quickly.