PACE TJ-70 nozzle size?

[GastonDeVille]

Hello out there!
Does any of you have a PACE TJ-70 handpiece or nozzles?
I would like to know because I'm going to make my own nozzles
and like to know what size the nozzles have where they connect
to the "handpiece" or heater element.
Now you may wonder why I just check with my TJ-70, but it is just
because I'm not going to get it until a couple of weeks, maybe next
year so I wanted to have some nozzles ready for action when it arrives.


The only thing I have for now is pictures.


The tool itself with attached nozzle



Other type of nozzle

[GastonDeVille]

Really? Any living person who has a clue about this?   

[GLouie]

I have one, and have just seen your request.

The diameter of the insert section is 7.90mm
Insert section length is 8mm to shoulder
Insert section is internally bored;
-internal bore has wall thickness of about 0.42 mm
-internal bore has a depth of about 3.87mm at the radius and about 4.8mm at the center.




I seldom use mine, as I just don't do much work requiring it. It is no substitute for a big hot air system for large chips.

[GastonDeVille]

Lots and lots of thanks!
I managed to make a simple model in Fusion360
Just don't know how to get the picture in to the message properly 

Just one more thing.. or two. I would like to know the size of the small nozzle / bore hole that protrudes the "big shoulder" and also the outer size of shoulder?
Now I just made guess that looked ok.

[GLouie]

The nozzle bore hole seems to be non-metric U.S. size 1/16 inch, about 1.57mm.

The nozzle-tube is likely stainless, and measures about 1.82mm outer diameter (OD). It is likely also non-metric size, and looks to have a flange built in to it. I would find out what sizes of tubing are available to you and simply make the appropriate hole for the interference fit. It ends a few mm from the end of the interior hole (hard to see in the photo).

The shoulder diameter is about 12.7mm, probably made to the US size of 1/2 inch. It doesn't look very critical.

[GastonDeVille]

That is even more perfect!
Now I really have a good understanding of how to put it together.
The plan is to turn it on a lathe from brass with the nozzle brazed on, (correct term?) not as hard as stainless but should survive some hot air.
 
If i have success with the making of a complete nozzle I will of course share the CAD-files.

[GLouie]

My guess is that the nozzle is not brazed, just a tight press fit (interference fit).