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T-nut for an Aloris QCTP

Usually these are machined by the machinist that is installing the lathe from some scrap steel in the shop. If you do not have a working mill I would just use some flat stock to make temporary holder for your axa (with just threaded hole) and then you should be able to do basic milling on another piece of stock held in AXA holder & end mill in a 3 jaw chuck.
 
I agree with Tom.

Do you have a mill? (or do you have access to one?) Rather than modify the nut I got with my offshore AXA, I made a new one, surprisingly finding out my compound T slot is a half thou tapered in the process.

The hardest part was finding a 14mm Metric Fine tap.

If you have a genuine Aloris the tap will be easier to find. measure the thread at the bottom of the toolpost and let us know what it is.

The chances someone has an extra Aloris nut that will fit are minuscule.
 
Dabbler said:
that is an easy standard size to get. What about the mill question @Tom Fitzpatrick
Click to expand...
No I don’t have a mill. I will take the current suggestions & make a temporary one out of flat stock & then use one of the Aloris tool holders to modify a more permanent one. Any suggestions on what kind of end mill bit to use & where to purchase one, speeds to use at etc. Thanks again - you guys are always SO generous with your assistance & suggestions.
 
Looking at my tap chart you need a 17/32 drill for a 9/16-18 hole. I would put the stock in your 4 jaw chuck on the lathe and drill. Then tap. Kms tools will have the drill and maybe the tap. Look on you tube for drilling on the lathe and 4 jaw chucks. Unless you have a drill press then just use that.
 
And you tube for tapping with a tap on the lathe. No power. That’s a manual operation. Safety first.
 
David_R8 said:
I made the T-nut for my tool post using a hacksaw and files.
Took maybe an hour.
Good exercise in hand work. :)


Sent from my iPhone using Tapatalk
Click to expand...

You used some cold rolled? or did you have a piece that came with the tool post? I had my QCTP (supplied) piece machined by a local machinist(kinda) and he complained it was hardened and wrecked his milling cutter. Seven months later he got it finished:rolleyes:
 
My toolpost came with a drilled and tapped blank. It was cold rolled for sure.
I measured and marked it out and hacksawed off the bulk and then finished it with files.


Sent from my iPhone using Tapatalk
 
YYCHobbyMachinist said:
What's your location and the dimensions of the T-NUT you need?
Click to expand...
South of Calgary. From the Aloris catalogue page 3 for sizing a T-nut the chart goes like this:
Make of lathe - Craftsman 12" model 101 - 28900
Swing - 12"
Slot on my compound for the T-nut:
A - 30 mm/1 3/16"
B - 26.05 mm/1.027"
C - 15.85 mm/0.624"/5/8"
D - 8.35mm/0.328"/21/64"
E - 7.90mm/0.310"

I'm going to try the cut and file method first to get a temporary T-nut then use the Aloris Tool Holders to secure a new piece while I chuck an end mill bit into the 3-jaw. My only question is where best in Calgary to buy and end mill bit & what size would you recommend? Would you have a picture or profile of one I should be looking for? Once again you guys are SO helpful. Thanks again.
 
For better context, here are the referenced dimension from the Aloris webpage.

856836AD-A3E1-47A2-BCC6-5B8FA906B5DF.jpeg


Did you already purchase the tool post? If not, Aloris will machine it for you free of charge if you give them the dimensions....

030CFE27-5677-4283-AD96-7FD9D71DE78E.jpeg
 
Tom Fitzpatrick said:
South of Calgary. From the Aloris catalogue page 3 for sizing a T-nut the chart goes like this:
Make of lathe - Craftsman 12" model 101 - 28900
Swing - 12"
Slot on my compound for the T-nut:
A - 30 mm/1 3/16"
B - 26.05 mm/1.027"
C - 15.85 mm/0.624"/5/8"
D - 8.35mm/0.328"/21/64"
E - 7.90mm/0.310"

I'm going to try the cut and file method first to get a temporary T-nut then use the Aloris Tool Holders to secure a new piece while I chuck an end mill bit into the 3-jaw. My only question is where best in Calgary to buy and end mill bit & what size would you recommend? Would you have a picture or profile of one I should be looking for? Once again you guys are SO helpful. Thanks again.
Click to expand...

How far south of Calgary?

There is something not right with dimensions D and E here. You're showing D to be larger than E? Also, how long does this nut need to be?

Please document the making of this nut here. I'm curious to see how this gets executed on a lathe.

Craig
 
to Robin Hood: Yes I know as I contacted Aloris by phone yesterday and they gave me the details of having them make the T-nut - $45 US + shipping, duty and other taxes, which is adding up, so I'm going to try and make a temporary one myself. Thanks very much.

To YYC HobbyMach (Craig): The current nut forms a rectangle with two steps (I'm assuming thats the way the compound it came off of was profiled. I'll document it with pictures and I'll definitely double check those dimensions. The T-nut which came with the tool post is much larger and I could probably just cut this one down as it's fabricated from mild steel as I was able to score it easily with a corner file, but I'd rather not mess with an original part. Plus it'll be good practice to make the temporary one with saws and files. Thanks you for your interest. I live on Okotoks.
 
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