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From: "Jim Wilkins" <muratlanne@gmail.com>
Newsgroups: rec.crafts.metalworking
Subject: Re: rod-mill project - "mains" electric motor advice
Date: Wed, 18 Jun 2025 13:24:22 -0400
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"Richard Smith"  wrote in message news:m1v7otjupo.fsf@void.com...

I've been asked if the rod-mill is portable - ie. can it be slung in a
car and taken to where there's some minerals actions?  That is how far
it's gone.
The answer is yes just about - but nowhere near as much as I'd like it
to be portable.

-------------------------

That's typical of development; the first prototype is arranged to be easy to 
build and modify, when it works it prompts requests for repackaging, and 
perhaps to make it look like other commercial products. The Segway went 
through around a dozen revisions before its release. Your welding skill 
gives you a jump ahead on this.

I learned to work sheet metal and bought some basic equipment so I could 
make products presentable. It helps to design heavy equipment as portable 
modules that automatically align when reassembled, perhaps with dowel pins. 
If you use two opposed screws to align something a locknut on one is a 
reminder to loosen only the other for disassembly.

A guide to drill and tap straight is very useful when you add fasteners to 
connect the modules. It can be as simple as a block with drill-sized holes, 
near the edge if you frame with angle iron. I prefer to drill one side and 
tap the other so only one side needs wrench clearance. I turn the bolt end 
pointed and a short section of the thread to root diameter to make 
assembling heavy sawmill and gantry components easier.
https://www.amazon.com/dp/B08FBPTNKM/ref=sspa_dk_detail_2?