Miniature die filer

[mklotz]

Thanks for sharing, BUT for those of us who do not already have a similar device, the posted description is frustratingly confusing. I cannot tell where the work is placed or attached or held steady; evidently there is a conversion of rotary motion to reciprocating, but it's not clear how the rotary motion is attached or created, nor where the conversion to reciprocating occurs. A large round brass/copper plug of some kind is apparently adjacent to a hole in the ?base? of similar diameter, but I cannot tell how that relates.

Somehow 50 years of casual amateur fabrication on my 9" South Bend thread-turning lathe has not equipped me to figure out how the device works; with all due respect, I suggest that the pictures and description would benefit from having about 50% more detail, perhaps with a diagram of inputs and outputs, for the newcomer to diemaking . . . we all tend to gloss over a few steps and details of mechanisms with which we deal on a daily basis, just need to step back a little and look at our work from a newcomer's perspective to ensure clarity. Certainly the workmanship IS of superior quality, nice work!

As stated in the description, the drive mechanism is a Scotch yoke. This is a common mechanism for translating rotary motion to reciprocating. Details of the design can be easily found by typing "Scotch yoke" into Wikipedia, which would lead you here...

https://en.wikipedia.org/wiki/Scotch_yoke

The rotary motion can be supplied by any source that produces rotary motion. As stated in the description I use an electric hand drill with a flexible shaft but a dedicated motor with belt and pullies is also possible.

As stated in the description, the brass plate under the hole in the table is there to divert filing swarf away from the bearings and drive yoke mechanism. Most die filers have something similar.