Announcement

Collapse
No announcement yet.

blade holder question

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • blade holder question

    I have a Dewalt 788 20 in scroll saw. Having problems with the lower blade holder bending the blades and eventually breaking them. Only bends on the part of the blade that is inserted in the holder. Suggestions?

  • #2
    The side of the blade holder that doesn't have the thunbscrew, has a set screw. One reason for the blade to bend, within the blade holder, is that the set screw isn't screwed into the blade holder far enough. When you tighten the thumbscrew, you are pushing the blade against the empty hole of the set screw which bends the blade.

    Screw the set screw in far enough so that the blade is centered in the slot of the blade holder when the thumbscrew is tightened.

    Also, make sure that the end of the set screw and the end of the thumscrew are flat - no burrs or scratches. The end of the thumbscrew screw has a small cap on it that can bind and twist at the blade. Check to make sure it rotates within the thumbscrew.

    If your set screw doesn't stay in place when you adjust it, invest in some blue locktight. That will hold it in place but will break free when you adjust it.

    Rick Hutchinsons site has a lot of information about the D788, it is where I learned the most about maintenance for my saw -- Rick's Scrollsaw.

    Good luck

    Tony
    The good woodworker does not craft the wood for honor. He uses his craft to honor the wood.

    Comment


    • #3
      Thanks Tony I will check this out....

      Comment

      Unconfigured Ad Widget

      Collapse

      Latest Topics

      Collapse

      • Rolf
        Wood turning stuff.
        by Rolf
        I have several bowls that I have turned a few are natural edge or have distorted a bit over time and I have not been able to finish the bottoms to my satisfaction.
        I have had a vacuum chuck for many years but getting the bowl centered is always a challenge. So I bought this setup https://ww...
        Today, 09:08 AM
      • Rolf
        Reply to New turning tools
        by Rolf
        I have not had the time to tackle this project but it will be done at some point.
        Today, 08:59 AM
      • will8989
        Reply to Tough Decisions
        by will8989
        Thanks Rolf. You said in way less words than I did....
        Today, 08:54 AM
      • Rolf
        Reply to Tough Decisions
        by Rolf
        Most of the books have the page size pattern with a scaling factor on the page. I am fine with that. Then there is the issue of the less computer literate who will have no clue about scaling or have the resources to do so. Maybe for the oversize patterns have an additional scaled copy to fit a standard...
        Today, 08:49 AM
      • millwab
        Reply to Source for 5-Ply poplar plywood?
        by millwab
        I’ve migrated to poplar from Baltic birch for my puzzles in part because it’s easier to cut and doesn’t wear out blades as quickly as the BB does. I can usually cut 5x the number of puzzle pieces in poplar than BB with each blade. I currently get my poplar ply from Cherry Tree. They sell it in...
        Yesterday, 11:30 PM
      Working...
      X