Supernova (1) key once again - help, please

[Lars Hansen]

The first model Supernova (the one with the text on the face of the chuck as seen on att. pic.) had a terrible chuck key.
I've just started a rescue mission, trying to convert a lump of dirt and rust into a working chuck. Both chuck body and scroll now look rather nice, so now I face the serious problem.
Both Teknatool US and NZ have run out of spare parts.
I'm looking for jaw slide and a key.
If anyone here has one of these chucks and would be so nice, I'd love to get a little info and a few measurements.

TIA,
Your's, Lars

 

[Lance Mirrer]

Sent PM

 

[John K Jordan]

I mostly use the newer SN2 but have a drawer full of the original SN. What info and measurements do you need? Do you plan to machine replacement parts?

I bought a few used from club members (a couple needed extensive rework.)

The chuck key on those is the worst. I understand why they made them like that but you can make them easier to use (for most things) with a bit of epoxy or spot welding.

 

[Lars Hansen]

@JKJ: Thanks, will get back with a photo, a few numbers and an explanation.

An aftermarket chuck key is ordered and on it's way.
One issue down, one to go.

 

[Lars Hansen]

These are the measurements taken from the chuck body.
I've attached a pathetic excuse for a drawing.

Metric:
T: 4.0
G: 8.0
W: 21.6
H: 6.8

Inches:
T: 0.15
G: 0.3
W: 0.48
H: 0.27

@ JKJ:
If you would measure the corresponding dimensions of a Supernova 1 jaw slide, that would be a great help.
I still hope to find an original set in good shape.
That would complete the revival of the chuck.
Lars

 

[rkriet]

This is a little off topic, but does anyone know where I can get a chuck key for the Nova G3 chuck? It’s the first chuck I ever bought and I still use it once in a while, but now I’ve lost the key.

 

[John K Jordan]

@ JKJ:
If you would measure the corresponding dimensions of a Supernova 1 jaw slide, that would be a great help.

Sure, but might be a few days. Occupied with medical things now.

If you are planning to fabricate one, you prob know this but remember the “threads” that mesh with the spiral scroll gear plate are different for each of the four slides. Otherwise the dimensions on the slides should be the same.

This is a little off topic, but does anyone know where I can get a chuck key for the Nova G3 chuck? It’s the first chuck I ever bought and I still use it once in a while, but now I’ve lost the key.

Amazon.com

No experience with this. I gave all my G3 chucks to a friend.

 

[Lars Hansen]

@ Ron: The model is still sold, so any Teknatool Nova dealer should be able to help you.
Have a look here:

Find a Dealer - NOVA, a Teknatool Brand

Nova Teknatool International is a global manufacturing exporter since 1980, with facilities in NZ, China and the USA.

www.teknatool.com

 

[John K Jordan]

If you would measure the corresponding dimensions of a Supernova 1 jaw slide, that would be a great help.

Ok, I took one apart today. With Starrett digital calipers, multiple measurements. There is some variation in the measured dimensions.

G: 0.300-0.303"
T: 0.157-0.158" from the machined cut on the top of the chuck
H: 0.262-0.263" measured at open end of the slot only
W: 0.498-0.500" measured at open end of the slot only

 

[Lars Hansen]

@ JKJ: Thanks SO much. Late here, will dive into the numbers first thing tomorrow.