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BXA or CXA, Clausing Colchester 15 1971 Vintage

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Hello all,
I am hoping someone who has this lathe can answer my question.
I just bought it and I need to add some tool holders.
Based on forum threads, it can go either way.
QCTP holders were not around in 1971, so the manual is no good.
Thank you.
Jeff
 

Comments

I don't have the lathe in question, but it isn't necessary since you do. All that really matters is the height from the base of the QCTP to the center of the chuck. So measure from the cross slide surface that the QCTP will rest on & compare that dimension to the holder height for your tools. I am not happy with the way QCTP manufacturers list the range of compatibility by swing size. The number needed is swing over cross slide.
 
The vertical distance from the center of the spindle to the top of the compound rest is what is important, and it is different from lathe to lathe, even with the same swing. As Brockwood said, then check how typical sized tools in the holder will work, with clearance remaining for higher and lower settings. You do not want to run out of adjustment before you get the tool cutting edge on center. Totally ignore any guidance from the seller about what size swing lathe their tooling will fit. That has nothing to do with the reality stated above, and it can get you something that does not fit the lathe or your use of it.
 
BA is too small ! Maybe good for 13s but we use CXAs in at work . CXA or CA for the 15s . I've always run CXAs on 15s because that's what I have a lot of . CAs will work great also on that 15 as it is what we use at work . I ran DAs on the 17s .

I can attest to that lathes power . It will make Frito type chips with absolutely no issues at all . Like I said in a previous post , that would be my lathe of choice . :encourage:
 
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The lathe came with 3 holders. I'm not familiar with the brand. Based on the size of the QCTP, I would say it's a BXA. No markings anywhere.
I'm thinking Phase II. Aloris is just too darn much money.
I bought a new Phase II for my last lathe and loved it.
Thanks guys, I'll check the height.
 
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http://www.aloris.com/aloris_cat/index.html#page/3
Everything you need to know about Aloris (and Aloris style) tool post sizes. Their recommendations are on page 29, but make sure to look at the pages with the actual dimensions of the products and determine which one is correct for YOUR lathe and for the work YOU will be doing. Any recommendations you get at the linked site (or from this site) are worth exactly what you have paid for them. Do your homework and make educated choices -- IMO.
 
The center height (top of the compound to the lathe center) is , 1 7/8.
According to Aloris, I need a CXA.
Based on the measurements I took of the QCTP that came with the lathe, it is a BXA. It is stamped 250-222.IMG_1733[1].JPG
Anyone ever seen these holders before? Any good?
 
The center height (top of the compound to the lathe center) is , 1 7/8.
According to Aloris, I need a CXA.
Based on the measurements I took of the QCTP that came with the lathe, it is a BXA. It is stamped 250-222.
Anyone ever seen these holders before? Any good?
I believe that Daryl (@Uglydog) has/had a CXA available, you might want to get in touch with him.
 
I downloaded the Aloris catalog. God info there.
Dorian and Aloris seem to be comparable in quality and pricing.
I may just go that route. It's only money, we can always make more :)
 
I have seen some poor reviews lately about Dorian products, mostly about poor finishes on the tools and then very poor support on the telephone. I have no personal experience with them. YMMV.
 
I found an Aloris, 5 piece starter set-CXA for $859
Phase II was only about $150 less, but it had one extra tool holder in the set.
Heck, for $150 I would rather have Aloris. You can always add extra used holders for $50-$75.
 
I run CA as I use the same holders on multiple lathes.
If starting new without my complication I'd likely run CXA.

Daryl
MN
 
Not sure on what you need for your lathe, but if you need a couple more cxa holders, I have these. No tool post, just these. Cant use them on my lathe. Just thought I'd throw it out there if your interested. No idea on what a fair price is. If interested, let me know and well figure something out.

CXA1 and a CXA13
The CXA1 has CW scribed in it lightly. They look to be in great shape. Couple of contact spots but pretty small. No idea what happened. I got them that way. CXA1 is missing the bolt/nut assembly.

20190115_111850.jpg
 
I have an extra Aloris CXA piston tool post.
She is missing the Aloris nameplate, but is in otherwise good used condition.
All the tool holders got sold off one by one.
I'd be happy to see her go.
I'm at UglydogLLC@gmail.com or 763-607-6836 if you want pics.

Do you have a mill?
Regardless of where you get your post you will want to make sure that the T-nut fits.
Easy enough to do if you have a mill, or have the tooling to do it on your lathe.
I may have a T-nut which fits as I have several extra in the pile. Or I could likely make one to fit your spec.
It may be the same as my 15" Clausing Colchester. However, mine is the 8000 series.
 
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The center height (top of the compound to the lathe center) is , 1 7/8.
According to Aloris, I need a CXA.
Based on the measurements I took of the QCTP that came with the lathe, it is a BXA. It is stamped 250-222.
Dabbler, one of the moderators here at HM might be interested in the BXA holder.

Daryl
MN
 
Here's what I have left . Not sure what Daryl has left , but ....always open for discussion as my large lathes are long gone ! :grin: April they move to the bay .

Pic 1 are CXAs
Pic 2 are CAs
Pic3 are DAs
 

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