Announcement

Collapse
No announcement yet.

What speed?

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

  • What speed?

    When scroll sawing through hard wood (oak,ect) isn't it best to lower the RPM on the saw, to keep it from burning the wood?
    Nathan May, Auburn AL
    Nathan May

  • #2
    RPMS saw teeth and you

    This is a more complicated question than it appears.The answer depends on hardness of wood ,thickness of same,number of teeth on blade ,lubrication
    afforded ,speed of saw ,and then tension of blade and probably the biggest
    variable your speed .any and all of these ,in any number of combinations will
    adversely effect the cutting results . Normally ,thicker wood requires less but
    bigger teeth per in. slower rpms more tension .taunter blade[ higher ping pitch]
    and slower even push [you] as usual there is always a trade off ,larger teeth not
    as fine a cut,experiment till you find the combination that works for you!

    my very best!
    Carl
    "Home Of The Dust Free Scroll Saw"
    Remember (IT is WHAT it IS)( Unless YOU change IT!)

    Comment


    • #3
      Carl's answer is perfect, work on your own speed combination. That speed will change with time, but in the meantime enjoy what you cut at whatever speed you decide to use.
      Taking It Real Easy
      Doug

      Doug's Wood Puzzles and Gallery

      Comment


      • #4
        I look at it this way, If I can't stay on the line, slow down the saw. If it seems like it's slow going, turn it up.
        Using clear packing tape or blue painters tape on the wood will help with burning the wood. I use clear packing tape over the pattern. Just my choice.
        Dan in So.Ca.

        Comment


        • #5
          Ditto Carl.. Good luck

          Comment


          • #6
            Nathan, you have a lot of good advice here, so, now it's up to you to choose how you cut your piece of wood. I have cut name plaques from 3/4 in. Oak & used a #3 polar FD blade. I did use a #1 spiral for some of it too. If I could, I would use the spirals for everything I cut. I love those spirals.
            PERK

            Comment


            • #7
              I agree with Carl and Dan that there are many variables and you have to choose your own combination. Here is my two cents. I have cut 3/4 oak and other hardwoods using everything from a #2 RT blade to a #7 ST blade. What I use and how many SPM I set the saw at depends on the details in the cutting. Many sharp turns or corners generally need a smaller blade and a slower SPM to make them come out clean. It just takes some practice. If you try your skills on a piece of scrap wood, using different blades and speeds, before tackling your project, you will save yourself a lot of frustration.

              george
              A day without sawdust is a day without sunshine.
              George

              delta 650, hawk G426

              Comment

              Unconfigured Ad Widget

              Collapse

              Latest Topics

              Collapse

              • handibunny
                Reply to EX dust collection holes screwed up a project.!
                by handibunny
                Rolf, smaller bowl-cutting angles, 30˚ or less, usually don't present a problem either with vibration or for cutting into the table. It's when you get into the 40˚ and 45˚ range that things get dicey for both. (The Seyco saw doesn't even cut bevels greater than 35˚ or so!) If you add even a slight...
                Today, 09:21 AM
              • Bill Wilson
                Reply to EX dust collection holes screwed up a project.!
                by Bill Wilson
                I've done some bevel cutting on my EX-21 as well and also have not experienced any added vibration, nor have I cut into the table. Perhaps I haven't cut at a steep enough angle, but the existing blade hole has been sufficient. I do despise the useless vacuum holes, but I've learned to live with them...
                Today, 09:06 AM
              • cwmagee
                Reply to EX dust collection holes screwed up a project.!
                by cwmagee
                Carole Your hole size was a concern when I purchased the Pegas Replacement Table for my EX21, because I had cut into the side of hole on the original table, The damage I did to the old table was due to the blade adjustments were not in the center of blade holders. So far that has not been an issue...
                Today, 08:40 AM
              • Rolf
                Reply to EX dust collection holes screwed up a project.!
                by Rolf
                That is an interesting point Carole. I have done some bevel cutting on the EX and can't say that I have experienced an increase in vibration or any problems with following the lines. I know when I cut one of your bowl designs on my Hawk I really had to concentrate on not pushing down hill....
                Today, 07:28 AM
              • handibunny
                Reply to EX dust collection holes screwed up a project.!
                by handibunny
                Just a word of caution about the size of the blade hole. When I used a DeWalt years ago in the infamous community woodshop, and also with my more recent experiences with the Jet, if you do much bevel cutting at a steep angle, you will cut into the table. That's why inserts have the slot that can be...
                Today, 06:21 AM
              Working...
              X