Mondiale Celtic 14 parts
Close
Login to Your Account
Page 1 of 3 123 LastLast
Results 1 to 20 of 47
  1. #1
    Join Date
    Aug 2019
    Country
    UNITED STATES
    State/Province
    Texas
    Posts
    54
    Post Thanks / Like
    Likes (Given)
    2
    Likes (Received)
    4

    Default Mondiale Celtic 14 parts

    I bought one of these from a dealer in Connecticut 2 months ago. It arrived with a shelled lead gear on the front of the main spindle. I was not pleased, to say the least, as anyone who hand-turned the spindle could immediately tell there was a major problem. The saddle undoubtedly hit the spindle while the lathe was in low-range.

    So...the seller told me to send the gear and he "had a guy" who could fix it in 2 weeks. Against my better judgement, I sent the gear.

    Skip ahead, it is now into the 6th week. He quit returning phone calls, only responding to texts after week 2. I only pestered every week or 2 until this week, when I have stayed on him to "give me a date" to get the gear back. I even offered to pay the gear guy handsomely. The last communication he said he would give me a tracking number, but of course that never happened and it's been 3 days.

    Long sob story. Currently I have a 2000lb boat anchor, as the lathe cannot be used without the main lead gear. It has the dog for high range and the gear for low. I have Googled the planet looking for the gear, but nobody has a 1970's vintage Celtic gear...including Mondiale. I even asked to buy the technical drawing, but of course that is history.

    Does anyone out there have knowledge of a Celtic 14 being parted out, where I can get a main gear? If I can't get the gear, I will be parting this one out...It was against my better judgement to send a critical component away. Live and learn.

  2. #2
    Join Date
    Sep 2005
    Location
    Oakland, CA
    Posts
    2,453
    Post Thanks / Like
    Likes (Given)
    267
    Likes (Received)
    657

    Default

    Not sure what a "lead" gear is, but it should be possible to make one based on the mating gears, center distance etc. A picture of where its missing from would help us help you. Do you have a parts book? It should have the tooth count if its one of the feed train gears. Just sayin.

    Here is a pretty good cross section of the gear train in your machine- you could circle the missing gear from this.
    Mondiale Celtic 14 Lathe

  3. #3
    Join Date
    Jan 2005
    Location
    The Netherlands
    Posts
    5,762
    Post Thanks / Like
    Likes (Given)
    269
    Likes (Received)
    1457

    Default

    Perhaps posting here gives some better results

    https://www.practicalmachinist.com/v...-seiki-lathes/

    Also you could put up a wanted ad on Marktplaats.nl Leboncoin.fr and 2dehands.be


    Peter

  4. #4
    Join Date
    Aug 2019
    Country
    UNITED STATES
    State/Province
    Texas
    Posts
    54
    Post Thanks / Like
    Likes (Given)
    2
    Likes (Received)
    4

    Default

    It’s the biggest gear in the box to the far right. The big kahuna! The main drive gear. Is the other forum for Celtics? The title is so long it clips on my ipad.

  5. #5
    Join Date
    Oct 2013
    Location
    netherlands Asten
    Posts
    814
    Post Thanks / Like
    Likes (Given)
    530
    Likes (Received)
    348

    Default

    Quote Originally Posted by CJD View Post
    It’s the biggest gear in the box to the far right. The big kahuna! The main drive gear. Is the other forum for Celtics? The title is so long it clips on my ipad.
    what gearbox?????

  6. #6
    Join Date
    Aug 2019
    Country
    UNITED STATES
    State/Province
    Texas
    Posts
    54
    Post Thanks / Like
    Likes (Given)
    2
    Likes (Received)
    4

    Default

    The gearbox in this link from above...

    Mondiale Celtic 14 Lathe

    Update...the gear actually showed up today. It was a real crap job on the gear, but at least I have the gear to make the lathe work. The broken teeth were not ground enough to get to clean metal, so the brazing has a questionable bond to the base steel. The teeth were then ground a bit erratically and the burrs were not removed. It’ll work, but who know for how long. Kind of a shame that the first project on my “new” lathe will be to machine a new gear for the lathe itself!?! Since it is first reduction gear and I am running a VFD, hopefully I won’t need to engage it...using the VFD to slow the spindle.

    The lesson learned...no more sight unseen purchases from an unknown vendor.

  7. #7
    Join Date
    Aug 2019
    Country
    UNITED STATES
    State/Province
    Texas
    Posts
    54
    Post Thanks / Like
    Likes (Given)
    2
    Likes (Received)
    4

    Default

    I couldn’t resist...I reduced the speed to 1% and tried the gear. It lasted 3 turns and all the “repaired” teeth shed at once. I’m now gearing up, so to speak, to cut my own gears from scratch. I can run the lathe in high gear while it “repairs itself”.

    Can anyone confirm the celtic main drive uses module 2.5 gears?

    Of course The JA who sold this to me blocked my calls and text.

  8. #8
    Join Date
    Oct 2005
    Country
    UNITED STATES
    State/Province
    Pennsylvania
    Posts
    15,127
    Post Thanks / Like

    Default

    Post name of dealer.

  9. #9
    Join Date
    Aug 2019
    Country
    UNITED STATES
    State/Province
    Texas
    Posts
    54
    Post Thanks / Like
    Likes (Given)
    2
    Likes (Received)
    4

    Default

    On the charge slip it reads:

    Alan Babin DBA LA Tool
    Connecticut 06062
    860-796-0230

    He posted adds in the local Dallas Craig's list...that's how I came to deal with him. Should have known better.

  10. #10
    Join Date
    Jan 2007
    Location
    Norfolk, UK
    Posts
    18,799
    Post Thanks / Like
    Likes (Given)
    14319
    Likes (Received)
    14361

    Default

    Now where have we heard that name before

  11. Likes Danny VanVoorn, cranium, Milacron liked this post
  12. #11
    Join Date
    Apr 2004
    Location
    Modesto, CA USA
    Posts
    6,883
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    1149

    Default

    How did you pay? can you cancel payment like with a credit card.
    Search here for Al Babin and kick yourself for not looking here first. Thank your lucky stars it is repairable. If it is a common gear type maybe you can buy a new one and have it bored to fit. How many teeth does it have.
    Bill D

  13. #12
    Join Date
    Feb 2013
    Country
    UNITED STATES
    State/Province
    North Carolina
    Posts
    409
    Post Thanks / Like
    Likes (Given)
    507
    Likes (Received)
    154

    Default

    A search of Al Babin complaints may freeze-up or break your I-phone outright...

  14. #13
    Join Date
    Aug 2019
    Country
    UNITED STATES
    State/Province
    Texas
    Posts
    54
    Post Thanks / Like
    Likes (Given)
    2
    Likes (Received)
    4

    Default

    Lesson learned!

    The outer spur gear will be relatively easy to cut, but with 115 teeth it’ll be a chore. It does have internal dog teeth, though, which will be more of a challenge. If I had a second lathe I would simply turn off the spur teeth and press on a ring to re-cut good teeth. I have a CNC mill, but I don’t trust removing the old teeth while keeping everything centered.

    Anyway, I’ll update how it goes.

  15. #14
    Join Date
    Apr 2004
    Location
    Modesto, CA USA
    Posts
    6,883
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    1149

    Default

    Maybe you can buy or make a new gear and press in or weld in the center part of the old one. I can not see where this gear fits. Does it have to be metal or would acetal or such be enough. My Harrison uses a plastic gear as a safety in the drive train. Some kind of fibre bakelite material. Of course it is only 3HP.
    Is this something a 3d metal printer can do? I would suppose the gear teeth faces would have to be finish polished or something.
    Bil lD.

  16. #15
    Join Date
    Apr 2004
    Location
    Modesto, CA USA
    Posts
    6,883
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    1149

    Default

    The old atlas horizontal milling machine used a zamac(pot metal) drive gear for the table motion. If it crashed into the end limits the gear would strip out as a safety feature.
    Bil lD.

  17. #16
    Join Date
    Sep 2011
    Country
    UNITED STATES
    State/Province
    Virginia
    Posts
    27,289
    Post Thanks / Like
    Likes (Given)
    7561
    Likes (Received)
    8513

    Default

    Quote Originally Posted by CJD View Post
    Lesson learned!

    The outer spur gear will be relatively easy to cut, but with 115 teeth it’ll be a chore. It does have internal dog teeth, though, which will be more of a challenge. If I had a second lathe I would simply turn off the spur teeth and press on a ring to re-cut good teeth. I have a CNC mill, but I don’t trust removing the old teeth while keeping everything centered.

    Anyway, I’ll update how it goes.
    CNC mill to make the gear can do its own indexing, directly, yah?

    If not, suggest not using a dividing head "directly". Make a spacer plate, 115 slots.

    If yah screw the pooch, you can weld-patch and correct it easily.

    THEN it will be able to deliver a perfect gear. Can't cut in the wrong place. If you skip, just go back. Gear won't give damn it had a tooth cut out of sequential order.

    Get weary-eyed or tired cranking a DH directly? NOW you can FUBAR the gear.

    114th tooth, too, Lybarger's Corollary as it is.

  18. #17
    Join Date
    Aug 2019
    Country
    UNITED STATES
    State/Province
    Texas
    Posts
    54
    Post Thanks / Like
    Likes (Given)
    2
    Likes (Received)
    4

    Default

    The good news is the old Bridgeport has a really nice Haas HRT210 rotary table, so no hard work with an indexer. I am more worried about the cutter wearing out during the 115 cuts. Is anyone experienced teeth cutting? is it best to do several light cuts or a single, slower heavy cut to best preserve the cutter life?

    I hear what ya'll are saying about the softer materials. I am starting to lean towards bronze, but I bet even a nylon blank would work, with no more worries about tearing up the entire drive train if something hits. In fact, I am sitting here thinking the best of all worlds will be a nylon press-on ring, and then cut the teeth. I could even cut a couple for future feaux pax.

  19. #18
    Join Date
    Sep 2011
    Country
    UNITED STATES
    State/Province
    Virginia
    Posts
    27,289
    Post Thanks / Like
    Likes (Given)
    7561
    Likes (Received)
    8513

    Default

    Quote Originally Posted by CJD View Post
    The good news is the old Bridgeport has a really nice Haas HRT210 rotary table, so no hard work with an indexer. I am more worried about the cutter wearing out during the 115 cuts. Is anyone experienced teeth cutting? is it best to do several light cuts or a single, slower heavy cut to best preserve the cutter life?
    This is going to sound TEDIOUS as Hell.. but if you want GOOD teeth profiles with that many teeth?

    Three passes. Three cutters. Or mebbe a re-grind. You'll see why limited to what I have, here, I'd make a spacer FIRST? My Elliot DH is also a spacer-head, so "easy for me to say", given I do NOT have that Haas.

    Rough-rough. NEAR-final. Close to "shaving" as you can get so that last pass the cutter will hold to clean, true shape.

    Page Two:

    W/R resilient material and "spares for future needs"?

    There's some good stuff "out there" as can be "filled" to modify it's wear characteristics.

    You COULD make a mold instead of the gear, directly? The part isn't that deep, nor is it complex in multiple dimensions and spaces. Then CAST your replacement gears.

    And offer them to others?

  20. #19
    Join Date
    Apr 2004
    Location
    Modesto, CA USA
    Posts
    6,883
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    1149

    Default

    I have never made gears and I probably never will so... Is it harder to make a mold so a gear can be cast in plastic or is it easier to make one gear. Seems like making one gear is less work then internals of a mold. I suppose the mold could have a back plate added after milling so there would be no tricky internal corners.
    Of course any mold would have to allow for draft or be made in segments so the gear can come out of the mold. That is another issue entirely.
    Bill D

  21. #20
    Join Date
    Sep 2011
    Country
    UNITED STATES
    State/Province
    Virginia
    Posts
    27,289
    Post Thanks / Like
    Likes (Given)
    7561
    Likes (Received)
    8513

    Default

    Quote Originally Posted by Bill D View Post
    I have never made gears and I probably never will so... Is it harder to make a mold so a gear can be cast in plastic or is it easier to make one gear. Seems like making one gear is less work then internals of a mold. I suppose the mold could have a back plate added after milling so there would be no tricky internal corners.
    Of course any mold would have to allow for draft or be made in segments so the gear can come out of the mold. That is another issue entirely.
    Bill D
    Yes, a back plate. Thereafter, it's a push-out, along the axis of rotation, a skosh of shrinkage and/or resilience, and/or differential heating/cooling - but not MUCH of either/any - your friend for a change.

    Not chasing max efficiency for high-volume, here. "Fewsies" if not "onesie", rather.

    As to cutting? It is basically an internally-toothed gear, hence agnostic on a slotter, harder to hold on a shaper, not easy at all on a general-purpose mill.

    All that DIY armchairish stuff said?

    The Mondiale is a good enough lathe, doesn't seem to need but this ONE major spend? Such things average-out, yah?

    I b'lieve I'd not further f**k about.

    Just send-off the damaged gear to one of our several "real" gear gurus, right here on PM, and pay his price to sort it and make a new one on the "proper" machinery.

    Chickn's s**t approach perhaps, but his rice-bowl not mine, whilst I, too, have other stuff to attend to he cannot do for ME, nor I for HIM.

    One hand washes the other...



Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •