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  1. Replies
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    Just a follow-up. I can say the mill is finally...

    Just a follow-up. I can say the mill is finally complete (at least for my liking!?!) Yesterday I put it through a 20k line job and all went perfectly. To wrap it up, here are the stats:
    ...
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    Thanks... I watched a video on machining a...

    Thanks...

    I watched a video on machining a gear hob from tool steel. If I have any more trouble getting the cutters I may give that a try.
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    Thanks! Shrink fit it will be. I'd have this...

    Thanks! Shrink fit it will be.

    I'd have this job done, but I have been playing musical chairs with ordering the cutter. The first order took 4 weeks to get the wrong cutter from China. Now I...
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    Been waiting 4 weeks for the M2.5 #2 and M1.5 #4...

    Been waiting 4 weeks for the M2.5 #2 and M1.5 #4 cutters. Yesterday a single M1.5 #2 showed up. Uhhgg. I have re-ordered from a US based company. 4 times the price as the Chinesium, but it's...
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    Thanks guys...good tips.

    Thanks guys...good tips.
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    Press/shrink fit Bronze?

    I need to make a set of double gears, module 1.5 with 22 and 24 teeth. Since they are adjacent each other, the smaller gear cannot be cut without also cutting into the larger gear. I plan to cut...
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    Duh! All my time has been on the mill the last...

    Duh! All my time has been on the mill the last few weeks, so that's where most of my brain is?!?

    I got tired of waiting for my Chinesium 1.5 module cutters to arrive and ordered another set with...
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    Good point. I should have definitively checked...

    Good point. I should have definitively checked the material while it was out. Most of my work is automotive, where steel gears are a given. Cast never crossed my mind until you guys mentioned it....
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    Interesting. I was leaning towards shrinking a...

    Interesting. I was leaning towards shrinking a ring onto the old gear, but it looks like you both are in favor of a mechanical joint. Lots of food for thought...thanks! Glad both are not in favor...
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    Bummer. Thanks for the link, Peter, but when I...

    Bummer. Thanks for the link, Peter, but when I tried to order the 65 tooth gear is out of stock. That is pretty much my luck on this project so far. They do have the 16 tooth in stock, but I will...
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    I hear ya'! But, I just bought it and the 2k lb...

    I hear ya'! But, I just bought it and the 2k lb anchor is sitting in my garage. It costs $500+ just to haul the thing to the scrap yard, so I have to make a try at it before kissing it goodbye. So...
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    Yes, the gear is all one piece. It is the main...

    Yes, the gear is all one piece. It is the main drive gear which is keyed to the spindle. A dog gear slides to engage the internal teeth for direct spindle drive. Then, with a second lever the...
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    Peter, I tried to send a PM, but it seems to go...

    Peter, I tried to send a PM, but it seems to go into a "stored in empty folder", and it will not let me access the folder. I don't think it is sending. Here are some pics of the machine and gear:
    ...
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    OK, be nice....I work full time at a real job, am...

    OK, be nice....I work full time at a real job, am assembling a 4 axis CNC Bridgeport, renovating a house, and working this Celtic issue...including 3 other gears in the feed train that need to be...
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    https://i.imgur.com/N6qL736.jpg Thank you all...

    https://i.imgur.com/N6qL736.jpg

    Thank you all for the responses. I know the best solution to do it right is to farm the gear out...but that rather defeats the purpose of having the hobby. Not to...
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    The good news is the old Bridgeport has a really...

    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...
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    Lesson learned! The outer spur gear will be...

    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...
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    Follow-up I had to replace the prox sensor on...

    Follow-up

    I had to replace the prox sensor on the table, but now it homes properly. I must have jarred the old one rebuilding the table.

    I also ordered the Centroid wireless MPG. It came...
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    On the charge slip it reads: Alan Babin DBA LA...

    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...
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    I couldn’t resist...I reduced the speed to 1% and...

    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...
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    Thanks, but I am pretty sure I'll get it figured...

    Thanks, but I am pretty sure I'll get it figured out.

    The latest issue that came up is that, after re-sealing the rotary table, it's not homing any more. Hopefully I'll get the "bugs" worked out.
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    Follow-up: I am still working on odd things,...

    Follow-up:

    I am still working on odd things, like the macros in the C code to spin the mechanical speed control up and down (purely redundant since I have the VFD, but a principal thing) and...
  23. Thread: Rotary table help

    by CJD
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    Here's the table in pieces: ...

    Here's the table in pieces:

    https://i.imgur.com/WKiJxy8.jpg

    https://i.imgur.com/FPjPigi.jpg


    This is the spindle, with the large ball bearings:

    https://i.imgur.com/pofdPMs.jpg
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    The gearbox in this link from above... ...

    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...
  25. Thread: Rotary table help

    by CJD
    Replies
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    Thanks...hopefully I can get it to that point. ...

    Thanks...hopefully I can get it to that point. Once I get the table working I still have to buy a solenoid valve and wire it into the Allin1DC Control board.

    I assembled the table, trying to...
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