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Thread: NEW Alps printer/plotter mech pinion gears

  1. #1

    Default NEW Alps printer/plotter mech pinion gears

    In the 80s Alps made a 4pen printer/plotter mech that everyone used. For Commodore it was the 1520 printer, for the Tandy is was the CGP-115. The picture here is from a Sharp CE-150 printer/cassette interface. They all now suffer from broken pinion gears. After searching for 2 years I think I found a manufacturer who can reproduce them at a reasonable price.

    They will be about $6/qty. 2. This all depends on the total quantity manufactured. Do you need new pinions? How many? Pass the word.



  2. #2

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    Quote Originally Posted by Jeff_Birt View Post
    In the 80s Alps made a 4pen printer/plotter mech that everyone used. For Commodore it was the 1520 printer, for the Tandy is was the CGP-115. The picture here is from a Sharp CE-150 printer/cassette interface. They all now suffer from broken pinion gears. After searching for 2 years I think I found a manufacturer who can reproduce them at a reasonable price.

    They will be about $6/qty. 2. This all depends on the total quantity manufactured. Do you need new pinions? How many? Pass the word.


    I passed it along to the TI-99 group on Atariage:
    https://atariage.com/forums/topic/30...omment-4534987

    And our local computer club:
    https://ahcs.groups.io/g/main/topic/...0,2,0,77639887

  3. #3

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    I could use 2 of these. Thanks!

  4. #4

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    This is great news, as I have a lot of the printers that used this mechanism and are in need of new gears. I could use 10 sets of them for sure, but I'll take 20 sets just to ensure I have a lifetime supply of spares.
    Enter My Mind At Your Own Risk!

  5. #5

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    What is in the set ?


    As for the split motorgears I found minature stepper motors on eBay with the same size gear made of brass. The gear is easily removed by heating it up and lifting it off, then slide it onto the plottermotor axis while its still hot.
    Note! remove the second gear before sliding the hot gear onto the motor axis!

    2019-04-14 15.27.21_small.jpg
    2019-04-13 14.00.02_small.jpg

    Now for that double gear on the far side of the rubber roller....
    The (nylon?) bushing had split recently but I managed to apply a tiny bit of superglue and reattached it to the metal axis of the roller, not sure if that will hold.

    How about the pens ?

  6. #6

  7. #7
    Join Date
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    I could use 2, thanks. I can provide a US mail address.

    Philip

  8. #8

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    Quote Originally Posted by acadiel View Post
    Yes, I found these and have already two sets of these (all black and four colours) They work ok.
    My experience with these felt-tip pens is they dry out very quickly if left in the plotter so after use: remove and recap.
    That and the high price

  9. #9

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    I will have a batch of newly made brass gears in hand next week! The are new, custom made for this application and do not come with a stepper motor attached

    I also found some NOS pens for Alps plotter mech.
    Best Electronics - bestelec@bestelec.digitalspacemail8.net
    Atari 1020 Color pen sets (1e) or black pen sets (4) $9.95/set.
    Loads of Atari stuff very dated website: http://www.best-electronics-ca.com/

  10. #10

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    Pass the word, the new brass pinions for the Alps printer/plotter mechs are now available! An installation will be posted in the next few days. You can make the special tool needed to press the gears on with a 2"/50mm C-clamp.

    https://www.soigeneris.com/alps-prin...m-pinion-gears

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