Free 173 Best Homemade Tools eBook:  
Remove advertisements
Page 1 of 2 1 2 LastLast
Results 1 to 10 of 15

Thread: Another digital dividing head

  1. #1
    Eaglewood's Avatar
    Join Date
    Mar 2016
    Posts
    15
    Thanks
    0
    Thanked 20 Times in 5 Posts

    Eaglewood's Tools

    Another digital dividing head

    So I needed a dividing head and at my advanced age I have trouble concentrating. I knew I would lose count or forget where I was entirely and thats why this was born.
    It is powered by an Arduino,driver, stepper motor and a 60:1 worm.
    My son is a talented programer and a God send for this project as I don't know hot from neutral. There is an interlock switch which tells the program and LEDS that the spindle is locked so I can't advance even if I don't pay attention to the lights. I bypassed the dip swiches in the driver so the program can choose an appropriate fraction of steps for what I have chosen. I can also go forward, backward,go to an inputted step and choose a speed. Hopefully soon a feature to select angles as an option to steps will be added.
    The head uses an Atlas spindle mounted in an AL. structure with tapered roller bearings. I rebuilt the chuck ( company went out of business in 1948) and reground the jaws to insure concentricity. I do not have sophisticated measuring equipment so checking accuracy is iffy at best, but an initial go shows it to be quite accurate, certainly within .001/.002.
    I am not a photographer or the son of one so please don't think badly of me for the pic quality.
    Dick
    Another digital dividing head-div-lock.jpgAnother digital dividing head-div-switch.jpgAnother digital dividing head-img_0512div-front.jpgAnother digital dividing head-console.jpgAnother digital dividing head-div-back.jpg

  2. The Following 11 Users Say Thank You to Eaglewood For This Useful Post:

    darkoford (02-03-2018), jjr2001 (02-08-2018), Jon (02-04-2018), LMMasterMariner (02-04-2018), mwmkravchenko (06-06-2018), NortonDommi (06-17-2018), Paul Jones (02-05-2018), PJs (02-04-2018), Seedtick (02-04-2018), Stevohdee (06-22-2018), tooly (06-05-2018)

  3. #2

    Join Date
    Dec 2014
    Location
    Sacramento, CA
    Posts
    1
    Thanks
    1
    Thanked 0 Times in 0 Posts
    Very nice sir! Can you describe the locking mechanism?

  4. #3
    Eaglewood's Avatar
    Join Date
    Mar 2016
    Posts
    15
    Thanks
    0
    Thanked 20 Times in 5 Posts

    Eaglewood's Tools
    Another digital dividing head-lock-1.jpgAnother digital dividing head-lock-2.jpg

    Hope this helps. The lock is basically a clamp pivoting below the spindle using a 1/2-13 shaft as a clamp and brass inserts to clamp. There is also an eccentric collar on the shaft retained with a set screw to activate the switch that is not in the pics.
    dick

  5. #4
    benkeller3's Avatar
    Join Date
    Aug 2014
    Posts
    9
    Thanks
    45
    Thanked 3 Times in 2 Posts
    That is very nice.

    It would be great if you (or your son) posted the schematic of the electronics. Maybe even the ardunio Sketch. Then I could maybe build one...

  6. #5
    Eaglewood's Avatar
    Join Date
    Mar 2016
    Posts
    15
    Thanks
    0
    Thanked 20 Times in 5 Posts

    Eaglewood's Tools
    I have the wiring diagram and will ask my son to post the sketch.

  7. #6
    Eaglewood's Avatar
    Join Date
    Mar 2016
    Posts
    15
    Thanks
    0
    Thanked 20 Times in 5 Posts

    Eaglewood's Tools
    Oops I meant I will post the diagram tomorrow and the sketch asap.

  8. #7
    Eaglewood's Avatar
    Join Date
    Mar 2016
    Posts
    15
    Thanks
    0
    Thanked 20 Times in 5 Posts

    Eaglewood's Tools
    Another digital dividing head-dividing-head-schematic.jpgAnother digital dividing head-dividing-head-schematic-2.jpgAnother digital dividing head-dividing-head-schematic-3.jpgAnother digital dividing head-dividing-head-schematic-4.jpgAnother digital dividing head-dividing-head-schematic-5.jpgAnother digital dividing head-dividing-head-schematic-6.jpgAnother digital dividing head-dividing-head-schematic-7.jpgAnother digital dividing head-dividing-head-schematic-8.jpg

    The 8 page wiring diagram.

  9. The Following 3 Users Say Thank You to Eaglewood For This Useful Post:

    bvd1940 (02-06-2018), Jon (02-05-2018), nashty1 (06-05-2018)

  10. #8

    Join Date
    Oct 2014
    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Hi. Fantastic work and thank you for posting. Does the Arduino require any code? and if so would it be possible to post it please.

    Thank you.

  11. #9
    Eaglewood's Avatar
    Join Date
    Mar 2016
    Posts
    15
    Thanks
    0
    Thanked 20 Times in 5 Posts

    Eaglewood's Tools
    I will post the code soon.
    Dick

  12. #10
    Bault's Avatar
    Join Date
    Feb 2018
    Posts
    1
    Thanks
    0
    Thanked 3 Times in 1 Post

    Code for the Project

    Here is the code that is currently running on this Divider. Happy to answer any questions.

    Divider_Code_V0.9.zip

  13. The Following 3 Users Say Thank You to Bault For This Useful Post:

    bvd1940 (02-06-2018), DIYer (02-05-2018), NickP (06-27-2018)

Thread Information

Users Browsing this Thread

There are currently 2 users browsing this thread. (0 members and 2 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
  •