Thanks Thanks:  0
Likes Likes:  0
Needs Pictures Needs Pictures:  0
Picture(s) thanks Picture(s) thanks:  0
Results 1 to 2 of 2
  1. 19th June 2005, 01:36 AM #1
    Grahame Collins's Avatar
    Grahame Collins
    Grahame Collins is offline Super Moderator
    Join Date
    Jan 2004
    Location
    Mackay Qld
    Posts
    3,466

    Question Bandsaw Jig problem

    I have made a circle cutting jig similiar to the one described in Violincrafters post.
    It is used on the two 20 inch Hafco models that we have at school. On one it cuts perfect circles in both Acrylic and plywood. On the other it runs out and drags the blade away from the jig.
    Both machines use the blades made up from the same roll. The blade tension is as near as I can adjust it.
    Can readers offer an opinion as to other varibles that could cause this phenomenum.

    Thanks
    Grahame Collins
    Reply With Quote Reply With Quote
  2. 19th June 2005 01:36 AM # ADS
    Google Adsense Advertisement
    Join Date
    Always
    Location
    Advertising world
    Posts
    Many





     
  3. 19th June 2005, 10:43 PM #2
    violincrafter's Avatar
    violincrafter
    violincrafter is offline Senior Member
    Join Date
    Mar 2004
    Location
    east of eden Mt Horeb
    Posts
    111

    Default variables

    Hi,
    Without seeing the jig its difficult to tell.
    In general the blade has to be exactly positioned to the locating pin. If its to forward the blade will stretch outwards and force itself outwards. If its to far rearward the blade will bite inwards more.

    Because you use two bandsaws do you use the same jig? If not then the blade position is incorrect to the centre of the jig on one of them. It seems like a blade setting issue more so than tensioning of the blade! The other offering are the rubbing blocks in good condition to firm the blade from "twist". One other posibility is that one bandsaw has its blade rolling at a different position on the wheel and this may indicate the different characteristic of the two identical saw if they share the same jig. This is only theory but may resolve this issue.

    Im basically refering to my jig though

    violincrafter
    Last edited by violincrafter; 20th June 2005 at 07:21 PM.
    Gloria in Excelsis Deo Apocrapha the greatest doxology
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Similar Threads

  1. Another micro-adjustable box-joint jig
    By Rocker in forum HOMEMADE TOOLS AND JIGS ETC.
    Replies: 31
    Last Post: 29th April 2010, 10:31 PM
  2. Continuously Adjustable Circle Cutting Router Jig
    By simplicio in forum HOMEMADE TOOLS AND JIGS ETC.
    Replies: 21
    Last Post: 30th August 2005, 08:07 PM
  3. Problems with full dove tail jig
    By kieran_shanley in forum ROUTING FORUM
    Replies: 12
    Last Post: 10th July 2004, 01:52 PM
  4. resawing jig for bandsaw
    By jow104 in forum HOMEMADE TOOLS AND JIGS ETC.
    Replies: 2
    Last Post: 18th April 2004, 11:10 PM
  5. dovetail jig for bandsaw
    By jow104 in forum BANDSAWS
    Replies: 1
    Last Post: 21st February 2004, 12:21 AM

Tags for this Thread

Posting Permissions

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

Forum Rules