Singer Futura 900 series modified 181871 needle plate
Modified 181871 Singer needle plate. Allows for you to move away from expensive, hard to find adjustable feed dogs and instead switch to cheaper (and still produced) feed dogs for later singer futura models. This part is made to use with singer metal feed dogs #181843m but should work with several other types.
I recommend using a durable filament and having the density set to 100% for maximum durability (as these needle plates are usually metal)
Small adjustments may need to be made. Correct sizing should be XYZ 31.5mm, 62mm, and 2 mm thick. A little bit of sanding the holes may also be necessary for optimal fit as feed dogs vary in size.
2nd file in progress, intended to be improved version