I have no issue with import machines, just the machine that you showed in your original post. I have worked with a very similar lathe and it was not a pleasant experience. The cross slide was just to flimsy for me to do anything useful with it in a reasonable amount of time. the second one...
That lathe is just a rebranded Grizzly. It is not a very rigid or powerful design. I would not recommend it for hobby use much less any type of professional use.
https://www.kloecknermetals.com/products/steel-plate/grades/c1020-or-1020-steel/#what-is-a-steel-1020-equivalent
"What is a steel 1020 equivalent?
In ASTM standards, the equivalent steel is referred to as A108, A29 type steel."
The butane tanks shot thru the truck. I wasn't implying they were shot. My understanding is it was a vape supplier and industrial warehouses. My little brother was doing a delivery over there this morning.
https://archive.org/details/modernmachinesho0000unse
This site will give you a preview, if you sign up, you can read the entire thing for free.
Amazon has the same hardcover copy for 1/2 the price of Abebooks.
I used Vactra #2 on mine, while it leaks like sieve, it works well. As far as it being hard to turn you do have to adjust the backlash. It sounds to me that the mesh between the gear was to tight. Look on page 5 of the manual for how to adjust.
I used a heat gun which got it hot enough to actually solder the connection as well. The heat shrink was tough enough to take the heat with out burning up.
I've used them for a few projects with good results. I'm pretty sure the ones I used came from McMaster.
https://www.mcmaster.com/products/connectors/splice-type~butt-splice/solder-loaded-heat-shrink-crimp-on-butt-splices/
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