Summary

Here is a replacement for those flimsy factory legs, The adapter snaps into the machine and the riser snaps into the adapter. Assemble the two parts together before attaching them the machine. They are a tight fit. Some sanding maybe required.
These legs can be clamped down to a table and are more stable than the originals.
I printed the adapter at a slight angle for rigidity. I used PLA.
Enjoy