If you want the very best- buy the commercial version. Support the US economy- we need all the help we can get! With that said, you can give an adjustable pusher a try with this print THEN buy the commercial version.

Designed to work with 1/4" carriage bolts, washers and nuts. You will need: Carriage bolts- 1/4" Five- 1" bolts Two- 1-1/4" inch bolts Two- 4" bolts Nine 1/4" nuts Nine 1/4" washers

Designed for minimal support: You should only need support when printing parts where the carriage bolts are countersunk into the body, and you may not need that if your bridging working well.

The adjustable centerpiece has a slide down hook for pushing difficult-to-grip piece.

I used shelf liner and super-glued it to the bottom surface- If you find a better material, please comment and share.

If there is enough interest, I will add a thinner fence-side plate.
This design is for testing purposes only- BE SAFE.