Question about transmissions

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navycop

navycop

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I was going to make a jig for my pen press for inserting the transmissions.
For the most part are all transmissions for the same kit/manufacture the same? I was going to insert it in the pen first then mark the piece of wood. This way the next time I did that kit I would have an exact fit.
Good idea???
 
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I saw a video by someone who was pretty low tech.
He had a number of jigs with "V"'s at the proper length.
He set the finished blank in one jig for the nib and in another jig for the tranny.
Personally, I think the recess around the tranny is usually pretty close so I stop short, test the pen cartridge and adjust from there.
Just my way.
Lee
 
THere has been a post or two about this. You cut a dowel to the match the finished seated depth of tranny to nib tip, then put the dowel along side the parts as you press them together. The dowel will stop you at the correct length.

Mike
 
Do you mean 7mm transmissions? If so, then I'm afraid the answer is "no". As Lee says, you can get close, but you'll need to test-fit and tweak for the best fit. I use jigs, but they don't yield an exact fit.

I've come across at least 5 visibly different 7mm transmission designs in different kits and from different manufacturers. Even within one batch of a single kit type from the same company, I've seen significant variation in seating depth.

And it's not just the transmissions. The refills vary in length as well. I doublecheck the length of all my cross-style refills before installing them. I cull the longest and shortest ones, and seat the remaining transmissions deep enough to handle a short refill. That way, an end customer can count on a replacement refill fitting. If it extends too far he can just back it out (unscrew the refill) a little.

I hope that helps,
Eric
 
Not the same

navycop said:
I was going to make a jig for my pen press for inserting the transmissions.
For the most part are all transmissions for the same kit/manufacture the same? I was going to insert it in the pen first then mark the piece of wood. This way the next time I did that kit I would have an exact fit.
Good idea???
Click to expand...
Don't go to the bank on all transmissions for the same pen style being the same. I just don't think the makers control the length that close. I find some stop at the ring and some the ring is almost out of sight when seated correctly. Actually the length of the tube can also effect seating debth and there is some variation there. I'd check each one.
 
I tried a little dowel jig on a few pens I had for a corporate order. Found out real fast you can't trust everything always being the same. I now insert each one and check it until until seated to the proper depth.

As mentioned above, its best to do them individually. Takes less time to check the fit than take one apart!:eek:
 
I check, test fit and re-test-fit everything every time with the transmissions. I've encountered the same "Why the crap isn't this the same as the last one I used this morning" problem. I order my slimlines in respectable batches and the variances are actually a bit of a shock to me.
 
Thanks guys.. I was starting to think it was just me putting the tranny in wrong. Now I know to check, recheck and check again.
"It's been said may times and many ways--Merry Christmas to you."
 
Drstrangefart said:
Donnie Kennedy said:
What is ... the proper amount of refill tip to have sticking out of the nib...?
Click to expand...
Whatever looks right.
Click to expand...
+1.

To me, what looks right is when the extrapolated nib angle matches the refill angle. That is, hold the pen up to a window or light-colored wall. If the line of the nib seems to flow all the way out to the tip of the refill, then the lengths are correct.

I hope that makes sense,
Eric
 
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