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View Full Version : Tool Gloat: Lathe and tooling haul plus question on taper attachment



tiktock
05-13-2013, 09:42 AM
Hello,
I'll start with a quick tool gloat. I just picked up this Logan 820 and about 500 pounds of tooling and attachments for under $800. Here's a quick example of some of the stuff I scored:
http://www.schottworld.com/lathe/lathe1.jpg

6 sets of boxes like this completely full of taps, cutters, endmills, reamers, carbide inserts, chuck jaws etc. Here's two:
http://www.schottworld.com/lathe/tooling1.jpg
http://www.schottworld.com/lathe/tooling3.jpg

Here's about 25% of the morse taper drills:
http://www.schottworld.com/lathe/tooling5.jpg

Ill continue in the next post.

tiktock
05-13-2013, 09:43 AM
Continued:
Misc:
http://www.schottworld.com/lathe/tooling8.jpg

Chucks, knurler, milling attachment, steady rest etc:
http://www.schottworld.com/lathe/accessories1.jpg
http://www.schottworld.com/lathe/accessories2.jpg

A bunch of jacobs chucks:
http://www.schottworld.com/lathe/accessories4.jpg

Next up is my taper attachment question...

tiktock
05-13-2013, 09:43 AM
Now that all my gloating is out of the way here is my main question. Is this part of a shop-made taper attachment?
Here is the main piece...looks shop made, welded etc.
http://www.schottworld.com/75cannon/DSC_0414.jpg
The curved part mates exactly with the cross-slide which appears to have been modified for this purpose at some point:
http://www.schottworld.com/lathe/1.jpg
The angle of what would be the carrier can be adjusted with a set screw. If i'm imagining correctly all I am missing is the sine bar this would ride along plus the clamps that would attach to the lathe bed? What else could this be?

Thanks!

macona
05-13-2013, 06:43 PM
Dont think it is a taper attach, might have been some sort of convex turning attach if it dosnt actually bolt down to the cross slidel

Nice lathe. Sell all the lantern toolpost stuff to some poor unsuspecting fool on ebay and get yourself a nice quickchange. I am partial to the Suisse multifix style ones myself.

GEP
05-13-2013, 07:10 PM
Hey can i have some of your cheap and good tools i pay you

madwilliamflint
05-13-2013, 07:14 PM
Overwrought with righteous suckitude!

Tony Ennis
05-13-2013, 07:20 PM
Yay! The good guys score again!


(and, you suck)

randyjaco
05-13-2013, 07:29 PM
Big time Suckage. Way to go!!

Randy

davidh
05-13-2013, 09:29 PM
did you catch the guy with a goat ? ? ? ? you really do suck.:rolleyes:

boaterri
05-13-2013, 09:58 PM
you suckus maximus!!

SVS
05-13-2013, 11:13 PM
That probably is a primitive attempt to home brew a Taper attachment, but it's a long ways from a complete and effective device. You need a "sine bar and clamp" plus a means of un-coupling the cross slide from the cross slide screw. (A larger/more advanced lathe will have a telescoping lead screw instead.)

Further, I'm not convinced you have the bore pointed the right direction. It MAY clamp to a shaft on the same axis as the cross slide screw which does incorporate a "slider riding in a sine bar".

It's really hard to tell from here...I've had about a dozen lathe taper attachments torn to bits and every one is subtly different, and takes a little study to understand. An incomplete home brew attempt requires extra detective work. I'd put some effort into tracking down pictures and description for the factory attachment.

Nice buy in any case though.

Scott

tiktock
05-13-2013, 11:56 PM
Ill take better pics. The cross slide cover removes with two screws that exactly align with the screw holes on this attachment and the actual cross slide appears to have been milled on a rotary table to accept the radius on this attachment as well but its hard to tell for sure. I'll try to actually attach it and show what I mean tomorrow.

Good call on selling some stuff. I do plan on selling some of the lantern style tooling as well as some of the drill chucks and a few oddball parts I don't need. I'd love to get a QC toolpost so i'll try to fund that with some of the duplicate tooling.

I'll be making cannons with this lathe. Here's the first thing I made with it...not bad for having ZERO lathe experience, IMHO. I've been working with steel for years as i'm a custom knifemaker but never owned a lathe before now.
http://www.schottworld.com/75cannon/1stcannon.jpg

JoeLee
05-14-2013, 12:13 AM
That looks like a nice haul.
On the thought of the taper attachment part, I would say no. I've seen several attempts people have made at home brew taper attachments, all of which have failed mainly because they had no idea how a taper attachment really works, but that piece doesn't even look close. Maybe a stop or center gage of some type.

JL...............

tiktock
05-14-2013, 06:57 AM
Okay here are some better pictures of the slide cover, cover removed and this mystery attachment attached. It clearly is designed to go here and follows the carriage as it moves and its also clear some kind of rod is designed to go in the pivoting block at the far end but I dont know what else it would be.

http://www.schottworld.com/lathe/taper1.jpg
http://www.schottworld.com/lathe/taper2.jpg
http://www.schottworld.com/lathe/taper3.jpg
http://www.schottworld.com/lathe/taper4.jpg

tiktock
05-14-2013, 07:00 AM
Here are two other DIY taper attachments I saw which made me think this was one as well:
http://i272.photobucket.com/albums/jj165/sdmcw/TaperAttachment10.jpg

http://www.practicalmachinist.com/vb/attachments/f24/49010d1332120959-my-first-post-anyone-know-about-taper-attachments-1overview.jpg

http://cdn.homemodelenginemachinist.com/attachments/f28/52654d1342625499-taper-attachment-import-lathe-dsc00453.jpg

JoeLee
05-14-2013, 08:04 AM
It sure looks like a home brew taper attachment now that you have it in place, but you would have to either pull the hand wheel off the cross slide screw or remove the screw to allow the taper att. to pull the slide in as the saddle travels down the bed.

On my Clausing the cross slide screw is a two piece deal. The dial end of the screw is internally splined, and the dial stem slides into it so the two are free to slide in and out.

JL........................

http://i911.photobucket.com/albums/ac317/JoeLee09/Clausing%20Cross%20Slide%20Screw/InternalSpline.jpg (http://s911.photobucket.com/user/JoeLee09/media/Clausing%20Cross%20Slide%20Screw/InternalSpline.jpg.html)

chevy3755
05-14-2013, 09:15 AM
I would ay you did very well my friend......

Paul Alciatore
05-14-2013, 11:12 AM
Very nice find. Enjoy!

becksmachine
05-14-2013, 11:19 AM
Hey you suck! ;)

However I am somewhat pessimistic about the taper attachment. It appears to me that the link from the cross slide to the slider is going to be too flexible to keep the slider from binding on any "sine bar" that would run through it. This is not helped by the slider being as short as it is.

Any taper attachments that I have had experience with have some type of rigid support right at the slider to constrain the slider motion in a direction parallel to the cross slide.

Dave

tiktock
05-14-2013, 12:27 PM
Hey you suck! ;)

However I am somewhat pessimistic about the taper attachment. It appears to me that the link from the cross slide to the slider is going to be too flexible to keep the slider from binding on any "sine bar" that would run through it. This is not helped by the slider being as short as it is.

Any taper attachments that I have had experience with have some type of rigid support right at the slider to constrain the slider motion in a direction parallel to the cross slide.

Dave

Thanks! I agree it seems a bit flimsy but I also know the prior owner worked mainly with wood based on the tools and dust it came with so maybe this worked for him or maybe it was a failed attempt that I inherited! I was hoping for the best as I wanted to make cannons and a taper attachment would be ultra useful but I may just have to make it a long term goal to fabricate a proper one myself. I know I can buy them used or new but I am not interested in paying more than the lathe for one.

TGTool
05-14-2013, 01:04 PM
I know I can buy them used or new but I am not interested in paying more than the lathe for one.

Why not? That's a hang up and not a sound financial decision. You've saved enough on the lathe and accessories you can afford to spend something on one accessory that you may need for your particular work. If you take the cost of the lathe plus the cost of the taper attachment together, does that come to a sound number for what you need to do disregarding the individual cost of each?

legendboy
05-14-2013, 01:58 PM
That's a pretty sweet score with all that tooling!

tiktock
05-14-2013, 04:58 PM
Why not? That's a hang up and not a sound financial decision. You've saved enough on the lathe and accessories you can afford to spend something on one accessory that you may need for your particular work. If you take the cost of the lathe plus the cost of the taper attachment together, does that come to a sound number for what you need to do disregarding the individual cost of each?

Well yes and no. I bought the lathe because it was an absolute steal. I wasn't willing to pay the full value price of all the tooling so its not like I have a conceptual "leftover" in my budget. My budget for a lathe was about what I paid and all the tooling was actually a complete surprise. I loaded the lathe into my truck and the owner just started emptying drawers and cabinets as if I assumed it all came with it and I didnt ask questions :)

If the lathe had come with a taper attachment but was almost $1K more in price (the cost of a brand new one from Logan) I wouldn't have even responded to the ad. IE if i paid $750 for the lathe I would not have paid $1750 for the lathe and a taper attachment, disregarding the bonus tooling.

If I was making cannons for a living, I wouldnt hesitate to buy one. For nearly $1000, I have zero issue turning tapers in steps and blending by hand, if necessary, until I find a used one for a steal or take the time to fabricate one from scratch on my mill.