502,789 active members
3,896 visitors online
Register for free
Login
IndustryArena Forum > Hobby Projects > Wooden Clocks > Problem cutting the Escape gear
Results 1 to 5 of 5
  1. #1
    Registered
    Join Date
    Dec 2009
    Posts
    20

    Problem cutting the Escape gear

    Im having a terrible time with the escape gear, even though the gear is faily large 10", the teeth are very sharp at the tips, have tried several different methods of cutting with the same results, tearing, chip out, fuzzing, using .25" baltic birch plywood, .90 upcut bit, running 18-20,000 rpm, have tried slower rpm, faster and slower feed to no avail, the thicker gears, .375 plywood is cutting only fair, no chip out, but still needs excessive sanding, its evident all of you who have built a wooden gear clock have overcome this problem. Please share your knowledge !!

  2. #2
    Registered
    Join Date
    Sep 2009
    Posts
    15
    I had that problem when using baltic birch plywood for the escapement, so I now make the escapement out of segmented hardwood, 12 segments 30 deg each about 3-4mm thick I make 2 layers and glue the layers 15deg offset to each other to strengthen the segment joint. I also insert a piece in the center as the points of the segments all meet at the center and are not good enough for an axle. I still use baltic birch plywood for all of the gears. The attached escapement (4inch dia) is straight off the machine with no sanding.
    Click image for larger version. 

Name:	Escapement.jpg 
Views:	1 
Size:	132.8 KB 
ID:	180842

  3. #3
    Registered
    Join Date
    Dec 2009
    Posts
    20
    Thanks, Lagore, I was beginning to think no one was going to post a reply to my problem, the escape gear you created is a work of art, thanks again for the information

  4. #4
    Registered
    Join Date
    May 2012
    Posts
    33
    I also have had goods success engraving around the gear with a v carve bit set to a 32nd depth.

    Ronnie

  5. #5
    Plastic
    Join Date
    Apr 2013
    Posts
    0
    But hey thanx for posting!!!



Similar Threads

  1. Bevel Gear Cutting with Involute Spur Gear cutter
    By basalt in forum General Metalwork Discussion
    Replies: 0
    Last Post: 05-06-2012, 10:13 PM
  2. Escape wheel for wooden gear clock
    By pinhead_mt in forum BobCad-Cam
    Replies: 5
    Last Post: 03-24-2012, 06:09 AM
  3. Gear cutting on the X3 CNC
    By John S. in forum Benchtop Machines
    Replies: 6
    Last Post: 12-08-2007, 02:26 AM
  4. Gear cutting
    By watchman in forum General Metalwork Discussion
    Replies: 10
    Last Post: 02-15-2007, 01:12 PM
  5. Why did the smoke escape?
    By obscurity in forum Stepper Motors / Drives
    Replies: 5
    Last Post: 05-29-2006, 05:34 AM

Posting Permissions

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