Thread: Which Chuck

Originally Posted by rsser

I was gunna add some more here but I'm over it

Time to head to the shed and fix boot rocker on my touring skis. New bindings have left the boot heel 30 mm above the plate it should sit on. Wedge shaped shims had to come from Utah with no guarantee they'll be enough. All the key screws were epoxied in and have to be heated to depoxy.

Don't ya just hate Yank QC?

Anyone else had boot rocker?

...amazing how quickly a thread can get highjacked. Oh, btw....have noticed lately that that the "Smilies" have shifted over to the right by about 1/512th of an inch

Took the new Titan to my mates last night.

Checked the chuck body and the mounting faces (for insert) had 1 thou runout. Fitted insert and still only 1thou runout.

Am going to pull shaft out of Hafco lathe (getting changed to 30 x3.5 same as STUBBY) and will do more test then

The only time i attempted to use this chuck (with 140mm jaws) the 500mm platter had more that 1/4 wobble at edge. This was regardless of how many times i moved it to try and get it straighter. When i made the tenon smaller and mounted in supanova 2 with 100mm jaws there was no wobble.

Runout in this chuck must be in the mountiing face for the jaws or the jaws themselves. More testing coming up then machine the faulty bit to get it straight.

My mate told me when he bought his 4 jaw chuck (for herless metal lathe) he had to machine the jaws for it to get it running perfect.

Cheers

Got my new adaptor from Trend + a set of Pin jaws

Edited 2nd July 1330 hrs

New insert/adaptor nut fitted

neighbour an ex-navy engineer came over for a chat showed him run out on old insert ran both inserts with out the chuck no sign of runout.

I found that the thread was tighter between the insert and chuck when putting it on Ed, hope you have yours sorted ASAP.

Thanks Wheelin. I just got an e-mail from Roger at Craft Supplies saying they got their shipment of inserts from Tek and he has tested one with no runout and is on the way here.

Will let you all know how it goes with the new insert when I get the chance to test it...probably won't be real soon as I'm trying to get ready for for the Haddonfield Crafts & Fine Arts Festival on July 11 and 12.

This is my "comeback" as I haven't done a show in over 10 years...wish me luck!

Great news Ed good luck at the exhibition dont forget photo's

OK....received the Super Nova chuck insert replacement from Craft Supplies yesterday and surprise, surprise...it did not correct the chuck runout problem

Called Roger at CS and informed him of the situation, he is sending out a replacement chuck (it's great dealing with an outfit that has good customer service), so well see what the new one does, hopefully it will be a winner.

Meanwhile I put together a video comparison of my original Nova chuck and the Super Nova and posted it on youtube for you guys to see. The wobble is pretty dramatic.
Excuse the strained voice as I have a hypothyroid condition.


[ame="http://www.youtube.com/watch?v=HH9rGBozE6Y"]YouTube - Nova & Super Nova Chuck Comparison[/ame]

Ed, can I ask why you got an "inserted" SN rather than a deicated thread like the Nova?

As far as I can tell, the Nova could be ordered in 3 different dedicated threads but the SN2 only comes with M33x3.5 as a dedicated thread.

Originally Posted by

Ed, can I ask why you got an "inserted" SN rather than a deicated thread like the Nova?

was not aware that Tek was selling chucks with the threads cut internally for 1 1/4x8. The US suppliers list a number of inserts for the SN, so that seems to be the only choice.
If you know any different, do please educate me and the others.

Cliff may have answered the question but Jim can can give any other answer.

Ed thats some rock n roll mine was no where near as bad visually

Hope the next step helps I know its frustrating

send it back thats just not acceptable . however have you checked your lathe shaft ? and collar that the insert locates against? would do that first . cheers bob

Originally Posted by bobsreturn2003

send it back thats just not acceptable . however have you checked your lathe shaft ? and collar that the insert locates against? would do that first . cheers bob

I don't think it's the shaft Bob, the older chuck runs fine.

Ed just had a mate of mine who is a tool maker fitter turner by trade and showed him the video

He said same as I did a few posts back remove each insert try each insert if they will fit in the other chuck and see what run out you get on both.

If the run out till is only on the Supernova get someone with an engineering lathe to check it for balance and that the internal thread in the chuck itself isn't out of wack.


Ray