Anyone know the thread size on nib

[pete00]

howdy all
Things are finally calming down and the Garage is comming along.
Uncoverd all the tools yesterday.....So im getting ready to play again.

Which leads me to the question.

Anyone know the thread size on the fountain nib, nip coupler and the end cap coupler for a JR Statesman.

Tried to match them up at home depot but no luck.

thanks......pete

 

[ctEaglesc]

ANd you never will

 

[PenWorks]

ID or OD ?

 

[pete00]

Originally posted by ctEaglesc
<br />ANd you never will

LOL..... another secret in the pen world....

 

[pete00]

Originally posted by PenWorks
<br />ID or OD ?

Actually both
outside for fountain nib
out and in for nib coupler

thanks...pete

 

[btboone]

They are usually very fine metric threads like M8 x .75 on the nib. Taps in those sizes are extremely hard to find. I had to make my own taps for my nibs. I've never gotten that particular kit, so I can't say for sure.

 

[Randy_]

Bruce:

What's the hold up?? That is a very nice kit and I know you have plenty of time on your hands!![][]

 

[DCBluesman]

The threads are M10 x 0.75. FYI, the tap and the die have to be the same size! (Or else they'll never screw together) [8D]

 

[pete00]

Originally posted by btboone
<br />They are usually very fine metric threads like M8 x .75 on the nib. Taps in those sizes are extremely hard to find. I had to make my own taps for my nibs. I've never gotten that particular kit, so I can't say for sure.

thanks for the info, I just gave the statemans as an example.
I was looking for what you said "<b>fine metric threads</b>" Im assuming that there all going to be in that family.

I'll give a quick look on line and see who may carry a tap and die set. thanks....pete

 

[pete00]

Originally posted by DCBluesman
<br />The threads are M10 x 0.75. FYI, the tap and the die have to be the same size! (Or else they'll never screw together) [8D]

thanks Lou,
im off to see if i can find some tap and die sets.
Just checked mine of course there course, and thats not fine[]

.......pete

 

[btboone]

They are extremely fine. MSC and the usual places don't have them that fine. I think I measured another custom nib at M8 x .65, which is a real strange one.

 

[pete00]

Originally posted by btboone
<br />They are extremely fine. MSC and the usual places don't have them that fine. I think I measured another custom nib at M8 x .65, which is a real strange one.

Hmmm....... well then, are there any replacement nibs that have a commonly found size in a standard tap and die set ?

A quick look found this set.
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=41452

Size range: M6 to M24
Coarse threads: 1.0 to 1.5 pitch
Fine threads: .75 to 1.5 pitch

thanks.....pete

 

[dfurlano]

Yea but that set will not have the tap or die that is needed for the nibs. Also it is very difficult to cut the threads using taps and dies into plastic and they are to fine for wood. Really the only way is to cut the threads with a lathe or CNC.

 

[Mudder]

Originally posted by btboone
<br />They are extremely fine. MSC and the usual places don't have them that fine. I think I measured another custom nib at M8 x .65, which is a real strange one.

MSC sells M8 x 0.75 and M10 x 0.75 because we use them here at work and get them from MSC

http://www1.mscdirect.com/CGI/NNSRIT?PMPXNO=1737132&PMT4NO=12444607

http://www1.mscdirect.com/CGI/NNSRIT?PMPXNO=1737055&PMT4NO=12444607

 

[btboone]

I see from an old thread that the nib threads were actually M6.5 x .75 and M6.5 x .5 for the ones I got from Anthony and another from Rich. Here's the thread: http://www.penturners.org/forum/topic.asp?ARCHIVE=true&TOPIC_ID=9303&SearchTerms=tap

 

[RussFairfield]

Look here for fine thread metric taps at a reasonable price

http://www.e-taps.com/ofertapage%20001.htm

 

[ctEaglesc]

Originally posted by dfurlano
<br />Yea but that set will not have the tap or die that is needed for the nibs. Also it is very difficult to cut the threads using taps and dies into plastic and they are to fine for wood. Really the only way is to cut the threads with a lathe or CNC.

How was it done before CNC machines were invented?

 

[btboone]

Gosh, I think they must have used sharp stones or something!http://www.historicgames.com/lathes/ancientlathes.html

 

[pete00]

Originally posted by btboone
<br />Gosh, I think they must have used sharp stones or something!http://www.historicgames.com/lathes/ancientlathes.html

Well those are cool.......