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+--- Thread: Harbor Freight 7x12 Mini-Lathe (/thread-4314.html)
RE: Harbor Freight 7x12 Mini-Lathe - Vinny - 05-26-2021
(05-26-2021, 07:18 AM)rleete Wrote: Metalworking forum and you guys don't even turn your lathes on!
Not much since I got the Logan. There have been a few times it woulda been handy, but I used the Logan anyway.
RE: Harbor Freight 7x12 Mini-Lathe - EdK - 05-31-2021
Today I measured the run-out on the mini lathe spindle using my Mitutoyo DTI that reads in .0005" increments. The needle barely moved. I'd need a .0001" DTI in order to get a true measurement. That was good news.
Ed
RE: Harbor Freight 7x12 Mini-Lathe - Highpower - 05-31-2021
(05-31-2021, 05:03 PM)EdK Wrote: ....That was good news.
Ed
RE: Harbor Freight 7x12 Mini-Lathe - Vinny - 05-31-2021
That's almost unheard of on a 7x. Especially after being shipped. You got lucky!
RE: Harbor Freight 7x12 Mini-Lathe - EdK - 05-31-2021
(05-31-2021, 09:33 PM)Vinny Wrote: That's almost unheard of on a 7x. Especially after being shipped. You got lucky!
I was measuring the internal Morse taper 3 of the spindle. I'll have to measure the chuck register and see what that gives me.
Ed
RE: Harbor Freight 7x12 Mini-Lathe - Vinny - 06-01-2021
A lot of folks were complaining where you measured it was .003-.004 off or out of round.
RE: Harbor Freight 7x12 Mini-Lathe - EdK - 06-01-2021
I measured the chuck register and there's about .0003" of TIR. I can live with that.
Ed
RE: Harbor Freight 7x12 Mini-Lathe - EdK - 06-03-2021
Printed a cover for the apron to prevent swarf from clogging up the gears. It's not perfect but it'll work for now.
Ed
[attachment=17080] [attachment=17081]
RE: Harbor Freight 7x12 Mini-Lathe - EdK - 06-04-2021
In preparation for installing a carriage lock I had to file the side of the saddle so I can bolt a piece of steel to it. My hand drilling skills don't exist so I'm going to wait to drill the mounting holes for when my drill press arrives next Tuesday.
Ed
[attachment=17082]
RE: Harbor Freight 7x12 Mini-Lathe - Highpower - 06-05-2021
(06-04-2021, 09:32 PM)EdK Wrote: ... My hand drilling skills don't exist ...
Ed
That is why I have a bunch of these now. https://www.youtube.com/watch?v=gX7zVyN-pl4
Saved my bacon when I had to drill and tap the small holes in the cast iron base column of my mill to mount the limit switch rail for the power feed I put on the knee. The casting is not exactly flat nor round where I had to attach the brackets. Trying to hold a hand drill perfectly perpendicular in two different axis is not a gene that I possess. I can come close with one or the other but never both.
Where did you file on the side of your saddle? Everything looks factory ground.
