Fab Sewing Machine

This project documents work towards a custom sewing machine for experimenting with automated stitching. It is a work in progress! The machine forms stitches, but it needs a considerable amount of work to complete its functionality.

The prototype uses some components available from Sailrite made for the Ultrafeed LS-1 machine. Sailrite provides detailed exploded views of this machine in the manual and sells components at their website. This prototype uses parts 8511, 9601, W172, 1232, 123100, 123011, 103273, 103274, 1603, and 102496.

It also uses two Drylin-RJMP-01-06 from IGUS, an inexpensive self-lubricating linear bearing.

cad/ contains a Fusion360 file for the full assemply, as well as STLs for the necessary 3D printed parts.

driver_3ax/ contains design files and milling files for a driver pcb using the XMega A4U and three A4953 H-Bridges. It is designed to drive three 25D DC gearmotors from Pololu.

fw/ contains a firmware to run on the PCB above. It runs PID control loops on the three motors to turn them into servomotors.

analysis/ contains an IPython notebook and supporting data for some analysis of seam strengths and the PID control loops.