Wanted: HP-46 or 81 Printer

[aj04062]

I have a bad plastic gear in my unit. Renders the printer unusable.

Also used in:
Monroe 1330
Compucorp Model 325
Shinshu Seiki type 102
Epson model 102

May need to make one from scratch.

[Duane Hess]

Please let me know if you find anything.

I assume the gear for the EP-102 is module 0.4 with 17/68 teeth, 3mm bore, 7mm total thickness, large outger gear 3mm thick.

I'm contemplating getting two separate gears (spur gears w/o hub) and epoxying them together. However, the smallest bore that I've located for the larger gear is 4mm. Can't seem to find a 4mm OD/3mm ID bushing.

thanks

** i.e. if you find a gear source that is. (unless you find a surplus pile of EP-102 printers!)

[damaltor]

I know a german seller who might be able to help you guys out. He sells gears and small metal bushings to put together two gears into one double-gear. Example:

Use this gear:
http://www.steingraeber-modelle.de/Zahnr...05868_4207
With this gear:
http://www.steingraeber-modelle.de/Zahnr...01217_4208
And this bushing:
http://www.steingraeber-modelle.de/Einst...01303_4210

To make a double gear with 17/68 teeth, module 0.5 for the inner, 0.4 for the outer gear, 6.5mm total thickness, 3mm bore. If you have a source for the gears alone, you might ask them for the bushings only.

At the bottom of the site there is a link to the english version - i dont know where they ship though (and where you are located).

[Duane Hess]

(05-17-2016 08:11 AM)damaltor Wrote:  I know a german seller who might be able to help you guys out. He sells gears and small metal bushings to put together two gears into one double-gear.
.
.
To make a double gear with 17/68 teeth, module 0.5 for the inner, 0.4 for the outer gear, 6.5mm total thickness, 3mm bore. If you have a source for the gears alone, you might ask them for the bushings only.
. . . .

Thank you for the info. The bushing appears to "fill the bill"! Maybe require minor filing (length), but no big deal. A module 0.5 likely will not "mesh" with a 0.4 gear. The 17-tooth gear undoubtedly turns another mod 0.4 gear (drum axle). Mis-matches typically "chew" each other up.

That being said I'll remeasure all the gears to make sure I haven't messed up. None the less, thank you for the bushing post, it appears to be what I need.

-- thank you.

[damaltor]

Sure! You also might just email them and ask for a 17/0.4 gear. maybe they have something like that too. Alternatively, without having seen the inners of your printer, you might be able to replace the gear which is connected to the 17-gear by another new gear, which then also has mod 0.5 - that would need one more replacement step, but would bring you a new gear which will then hopefully live longer than replacing only one of the two cennected gears. I dont know if that is possible though.