Filing Machine
This is a filing machine, also known as a die filer. It is based entirely on HaroldĀ Hall's design and (unusually for me!) I don't think I changed anything about the core design, with the only alterations being changing the base plate to suit my lathe.
As this is based on someone else's design rather than mine, I haven't written much about the details. However, it works very well indeed and I'd wholeheartedly recommend going and reading Harold's website.
Some more photos (click on them for a bigger view):
This is a simple 3D-printed holder for the files and the drive pulley:
Here are a couple of videos of the machine running, first slowly and then a bit quicker:
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