The Home Machinist!

Guys, I am pretty new at all this stuff so this may be a dumb question. I just got a new three jaw chuck and back plate for my old Logan 820 lathe. This is a little hard to explain but here goes: Machining the back plate requires that a "step" be machined in the center that fits closely in...

Thank you for taking the time to answer this, Glenn.

I had assumed the chuck was recessed but it never says that in the ads and never shows a photo of the back. It looks pretty straightforward now.

Again, thank you.

Please forgive another stupid neophyte question: When installing a new 3 jaw lathe chuck with a plain back, using a separate mounting plate, how hard is it to maintain concentricity? I have never even seen a new plain back chuck and mounting plate but looking at the ones in the CDCO catalog (semifin...

I feel pretty stupid but I can't seem to figure out how to remove the compound from my Logan model 820. The only way to get the leadscrew out and therefore the compound off seems to be to remove the cylindrical "nut" that the leadscrew screws into, right behind the handwheel. I cannot seem...

Thank you Toastydeath. That's what I thought but believe it or not I couldn't seem to confirm it anywhere. I am interested in the stand alone e-leadscrew processor board ( http://www.autoartisans.com/ELS/ ) that is being discussed on the Yahoo group: http://tech.groups.yahoo.com/group/E-LeadScrew/ b...

I have managed to CNC my mini-mill and also built a small (3'X3') plasma table (both using Mach3 and Xylotex) so I am not a complete dummy. I have an old Logan model 820 (10") lathe that had a damaged gear box and a lousy leather belt. I cut away the motor mount and removed the gearbox. I now p...

Does anyone know if this lathe is a good deal:

http://atlanta.craigslist.org/tls/930626490.html

It is a ProfitMaster and from what I have been able to research was made in Brazil. Is anyone here familiar with it and it's quality?

I am a novice and as such was trying to improve the surface finish on mild steel with HSS tool bits on my 9" Logan lathe. I have retrofitted my old lathe with a variable speed DC treadmill motor and a Tachulator speed sensor. I note most all references show mild steel should be machined at up t...

After looking at my 8" grinder, I don't understand why a 1-1/4" by 5/8" aluminum bushing wouldn't work. The washers that hold the 8" wheel are certainly lage enough to clear the bushing and secure the wheel out on the blotter section. I am now wondering why I asked this question?...

I am considering making an adapter to allow me to mount 1-1/4" hole-size 7" grinder wheels on an 8" 5/8 shaft 3600 rpm grinder. As has been reported rather extensively here, the 7" wheels have a much larger selection of hardness and friability for proper HSS bit grinding. Harold_...

Thanks, guys for the responses. I told you it was a stupid question. After I removed the sleave I could see how the screws tighten the shaft. I am pretty new at this.

I thought I understood what most basic lathe tooling was but I just ordered the AXA piston type quick change tool post kit from CDCO Machinery and while I am quite pleased with the quality, I am confused as to how to use one of the holders. It is clearly a boring bar holder but it doesn't seem to ha...