Making a New Pin Wheel

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  • #48969
    daryn
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    • Topics Started: 2
    • Total Posts: 97



    Text to follow!

    #56974
    daryn
    Participant
    • Topics Started: 2
    • Total Posts: 97

    Someone decided to repair this English 8day longcase pin wheel by brazing it back together,unfortunately this softens the brass and that’s really not very good for wheel teeth , also they neglected to remove the flux so over time it’s corroded away , here’s a couple of pics of the set up I use for wheel cutting, the teeth and pin holes are all cut in one mounting so everything stays dead true, the lathes been modified quite a bit . . . Any questions welcome :-)

    #56975
    Bob Tascione
    Moderator
    • Topics Started: 38
    • Total Posts: 1559

    Hey Daryn thanks for starting this EXCELLENT thread!
    I know it’s going to be a very helpful and popular one. Your setup is cool. Can you explain it a bit. From this angle it looks like you’ve clamped something like a tool post grinding unit (or something like that) onto an angle plate, running it from a modified overhead pulley setup…maybe salvaged from another unit? I love this type of applied creativity!
    Thanks again!
    Bob

    #56976
    ewinrow
    Participant
    • Topics Started: 26
    • Total Posts: 185

    That’s some good work Daryn. Maybe one day I will be able to do as well. MAYBE, one day. 😮

    #56977
    daryn
    Participant
    • Topics Started: 2
    • Total Posts: 97

    Hi chaps ,
    It’s a cheapy Asian lathe 7×12 , I’ve then replaced the headstock internal gears ( from plastic to steel) also replaced the angular contact bearings with high precision taper rollers , extended the cross slide travel and fitted more taper rollers on the feed screws , that and careful rebuilding has given me something very accurate for a fraction of the cost of a swiss machine
    To this I’ve added a a powered milling and drilling attachment, this provides the drive to a milling spindle mounted on a vertical slide mounted on the cross slide, division is by direct indexing of the lathe headstock,
    This will do from longcase greatwheels down to platform escape wheels

    #56978
    daryn
    Participant
    • Topics Started: 2
    • Total Posts: 97

    The smallest I’ve done on it was the castle wheel from the winding work of a wristwatch , the wheel that has pinion leaves on the side and a ratchet cut on the end, that was a fiddle!

    #56979
    daryn
    Participant
    • Topics Started: 2
    • Total Posts: 97

    Oh bob , the milling spindle that carries the small drill chuck takes no1 morse taper mandrels , it’s the same thing I use to cut the wheel teeth , just turned through 90degrees

    #56980
    mahlon
    Participant
    • Topics Started: 28
    • Total Posts: 215

    Daryn, beautiful work, I can only dream of being able to do that some day. I am truly amazed by the work you people are able to do Mahlon

    #56981
    daryn
    Participant
    • Topics Started: 2
    • Total Posts: 97

    Thankyou mahlon, kind words , but never say never !

    #56982
    daryn
    Participant
    • Topics Started: 2
    • Total Posts: 97

    As a footnote , notice the male centre on the mandrel holding the wheel , this is used to centre the gear cutter, much easier than mucking about with microscopes or centering micrometers . . .

    #56983
    Bob Tascione
    Moderator
    • Topics Started: 38
    • Total Posts: 1559

    That’s Brilliant!
    Ok, I think I’ve got it now.
    So does that pulley column rotate from vertical to horizontal and anywhere in-between to allow for same plane belt alignment with the milling spindle when the spindle is rotated?
    Thanks!
    Bob

    #56984
    daryn
    Participant
    • Topics Started: 2
    • Total Posts: 97

    Yep , that’s it bob , I’ve got three different length belts for different set ups , I’ve got another job come in that needs a hoop wheel making , I take a pic of the teeth being cut when I do it . . . he main collum that supports the milling attachments I filled with molten lead this dampens out most of the vibration

    #56985
    chris mabbott
    Participant
    • Topics Started: 119
    • Total Posts: 1525

    Daryn I can only echo what the others say, beautiful job bro. When are you coming over to see me and teach me this stuff, why does Paul get all the gravy 😆

    #56986
    bernie weishapl
    Participant
    • Topics Started: 58
    • Total Posts: 1218

    That is one nice looking setup and a beautiful job on the wheel.

    #56987
    Bob Tascione
    Moderator
    • Topics Started: 38
    • Total Posts: 1559

    Adding lead to dampen vibration is a great tip Daryn!
    A lot of members have an interest in wheel cutting so I bet this subject will be followed closely by many.
    Looking forward to any pics and text content you can add here.
    Gracias again!
    Bob

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darynMaking a New Pin Wheel