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Welcome to the group!

Perhaps a quibble, but ... I think of "lead screw" as only referring to the Z (left-to-right or right-to-left) movement, so "more than one electronic lead screw" doesn't really make sense. :) Certainly to do a cam on a lathe, we are moving beyond ELS and into CNC territory!

Clough42 has made and sells an ELS. Here are some relevant links. Note that I have not tried this out, and have no affiliation and no personal experience with this - only what I've seen on YouTube. https://www.youtube.com/@Clough42/playlists https://clough42.com/shop/...

I'm going to revert back to English - I fear we are pushing the boundaries on using another language. In 2025, I will probably be in Athens, Corinth, and a couple of the islands.

Παρακαλώ! Σπούδασα αρχαία ελληνικά, αλλά προσπαθώ να μάθω νέα ελληνικά. Επισκέφτηκα την Ελλάδα 3 φορές και ελπίζω να είμαι εκεί ξανά το 2025.

That would seem to be a lot of chips! Looking forward to seeing more.

Good work! I love my little 7" shaper - not the fastest tool in my inventory, but very satisfying to see it peel off metal. I need to fix an annoying issue with the auto-feed pawl - it doesn't always want to catch when set for left-to-right motion. Not sure if a stronger spring or a sharper tip...

Good point; I stand corrected. Let me amend my statement to say, for the vast majority of 3d printers discussed in this forum, that driver would be overkill. :)

Well done!

The device in the link is way overkill for a 3d printer. Something like a TMC "silent stepper" will do the trick as far as the "singing" of the stepper motors. If fan noise is a problem, the only fix I know of is a better quality fan.

Welcome to the forum!

Welcome to the forum!

Dieter, great to have you on the forum! Beautiful work!

γεια σου και καλωσοριζω!

With respect to scrap yards in this area (North Carolina), it varies widely. Some do not allow any scrap-picking; others do. My primary source is not actually a scrap yard, but a metal scrap bin used by the institution where I work. I obtained permission to scavenge from it some 20+ years ago...

I've heard the term "upset" used for displacing metal through a blow. Seems apropos in this sort of situation ... which I have caused far too many times!

Welcome!

No dumpster-diving? That is just downright depressing ... the majority of the stock I have on hand, and consequently the materials used in building belt grinder, slip roll, and any number of other tooling has come from the metal scrap bin. I should note that I do have permission to "dive" there. :)

Exactly - I love seeing a treadmill discarded on the side of the road. Sometimes (rarely) the motor is bad; sometimes (rarely) the controller is bad, or is of a proprietary design that is difficult to hack. But most of the time, both work fine, or the motor from one can be married to the...

Welcome!