Free 186 More Best Homemade Tools eBook:  
Get tool plans

User Tag List

Results 1 to 5 of 5

Thread: Kickstarter campaign for open source glass blowing lathe - video

  1. #1
    Jon
    Jon is online now Jon has agreed the Seller's Terms of Service
    Administrator
    Supporting Member
    Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    26,365
    Thanks
    8,086
    Thanked 40,134 Times in 11,738 Posts

    186 More Best Homemade Tools eBook

  2. The Following User Says Thank You to Jon For This Useful Post:

    Seedtick (Sep 30, 2017)

  3. #2
    Supporting Member Frank S's Avatar
    Join Date
    Aug 2015
    Location
    Peacock TX
    Posts
    11,619
    Thanks
    2,176
    Thanked 9,112 Times in 4,361 Posts

    Frank S's Tools
    neat little glass blowing lathe If I was into glass I would have to have one of these

    2,000+ Tool Plans
    Never try to tell me it can't be done
    When I have to paint I use KBS products

  4. #3
    Jon
    Jon is online now Jon has agreed the Seller's Terms of Service
    Administrator
    Supporting Member
    Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    26,365
    Thanks
    8,086
    Thanked 40,134 Times in 11,738 Posts
    What is it about a glassblowing lathe that makes it so expensive?

  5. #4
    Supporting Member mklotz's Avatar
    Join Date
    Aug 2015
    Location
    LA, CA, USA
    Posts
    3,515
    Thanks
    362
    Thanked 6,546 Times in 2,156 Posts

    mklotz's Tools
    It's not my area of expertise but I can guess...

    The tailstock has to be able to grip the work, not just support it as is done in a metal lathe. This means the tailstock chuck must turn in perfect synchrony with the headstock chuck. Remember, the glass, unlike metal, is going to go rubbery while being formed so the HS chuck can't simply drive a freewheeling TS chuck else the work would be twisted. Thus the TS must be driven just as the HS is driven and the two drives have to be carefully synchronized.

    It's not clear to me how that was done in the days before electronics, servos, etc. but even with modern electronics it will require some careful engineering.

    The no-tailstock glass lathe we had in college had a fixture for supplying compressed air through a rotating gland into the tubing being worked so the glass could be inflated/blown while it was being formed. This is another complexity that would add to the price.

    In addition, you have the demand factor. The market for glass-blowing lathes is probably fairly small so prices will be high.

    OTOH, the folks who "don't need no steenkin' lathe" do some truly incredible things with simple hand tools...

    ---
    Regards, Marv

    Experience is always far worse than pessimism

  6. The Following User Says Thank You to mklotz For This Useful Post:

    Jon (Oct 1, 2017)

  7. #5
    rtp
    rtp is offline

    Join Date
    Mar 2017
    Posts
    6
    Thanks
    1
    Thanked 7 Times in 3 Posts
    Before the new electronics they more then likely were 3 phase powered . 2 3 phase motors on the same line will sync up .



    2,000+ Tool Plans

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

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
  •