2021 POTD Thread Archive

[erikmannie]

I thoroughly cleaned all 3 of my machine tools.

Then I figured out the taper attachment on my PM-1660TL. It took me awhile to figure it out. I was told that I would have to “disengage” the set screw that serves as the cross slide backlash adjustment. I did not find that to be at all relevant.

What DID work was to loosen 2 allen bolts at either end of the “pivoting angle adjustment lever” in order to select the taper angle; then tighten it in the desired position.

From there it is only a matter of tightening the brown thing that looks like a carriage stop (shown in the first photo). Tightening this forces the carriage assembly (which includes the cross slide) to “engage” and move along the taper attachment. The base of the taper attachment remains fixed while the top manipulates the cross slide as the carriage moves.



All 3 of the bolts in the photo above need to be tight for the taper attachment to engage.

I didn’t see that you need to mess with the 5 bolts below. I only see these are a way to adjust the cross slide backlash.



I got this to .0253”/inch when I was looking for .0256”/inch so I will call that good.



One final note about that brown thing that looks like a carriage stop: when the taper attachment is not being used, the bolts on the brown thing are loosened enough to allow the entire taper assembly to move back and forth with the entire carriage.

This is where I have it set for Morse Taper #6 1/2:

 

[rwm]

That's a nice live center. What kind?
R

 

[erikmannie]

That's a nice live center. What kind?
R

Here is a picture:

 

[Brento]

Tonight i finally started to tear apart my new to me Derbyshire Elect lathe. A little history on this lathe, it was built and sold in 1942.
I started by taking the cross slide and the tail stock on then took the headstock and spindle off to see how the bed looked. It has some wear for being 79 years old. I used brake clean on a rag to wipe the bed down and clean it off from all of the old grease. Then i went over the slides with a stone gently to make sure there was no high spots. Followed up with wiping it down with another rag and brake clean. Added a little way oil and rubbed it down and wiped off any excess that was on it.
Now the bed is ready to go back together so i wiped down the headstock and added a little way oil to it and put that into place.
Tomorrow i will start on the spindle by wiping it down and lubricating it to go back together. Idk if any of the wear on it is normal or not but that is for another night and a conversation for another thread.
I do see in the future that i will have to make another pulley bc one of them had a broken off support for the belt on a wall. Will have to see how that runs later on.

 

[Weldingrod1]

New ring light on my mill! The old was was weak! Not even sort of blinding!
I added some masking around the bright edge after the photo.

Sent from my SM-G892A using Tapatalk

 

[Larry$]

I've thought those seemed like a good way to get some light where it counts. I should do that. What did you buy?

 

[hman]

You can get them in various diameters from various folks at eBay or Amazon. Here are the ones I bought several months ago:

https://www.amazon.com/gp/product/B078Y6MFNB/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B078SR4JRS/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1

 

[erikmannie]

I got file handles for all of my files & hung them up on pegboard.



I mounted a Sky Hook on a welding cart (thus the cylinder of C25), & added 3 chucks, 4 lathe chuck keys and a pair of gloves. The lathe chuck keys fit nicely in the slag chippin’ hammer hooks.

 

[GoceKU]

This morning it was extremely foggy, no problem for me and my french car. But others are not so prepared and some one had lost couple of pieces of wood, the biggest of which was a 4 metre long piece of 4"x 4" that i run over, it lifted my entire car in the air, made a very loud noise. Because of the fog i did not stop but on my way back with the fog lifting i stopped to see what i've hit. Because of this and previous suspecting alignment issues i took it to the alignment shop, the guy there found couple splinters of some fresh wood in the front subframe but the alignment was spot on all the boxes wore in the middle and wore green. No adjustment needed, the guy working there commented this thing has 10x stronger suspension then any new SUV.

 

[erikmannie]

I mounted a TMX 3-857-1236P chuck in my lathe.