Troubleshooting Snipe when Running Flooring

      Experts advise on causes and cures of moulder snipe. November 26, 2008

Are there any Logosol owners that know how to stop snipe when running flooring? We have to trim about 2 1/2" off of each end.

Forum Responses
(Solid Wood Machining Forum)
From contributor J:
Besides the obvious of making sure the machine is set up properly, I have read many posts stating the importance of feeding the blanks tightly back to back to eliminate that problem.

From Dr. David Rankin, forum technical advisor:
Several things cause snipes:
1. Too large a gap around the head.
2. Dull tools. Check the first bottom, as this head is ignored as a cause of many problems.
3. Pressure shoe on the top head not parallel to the table.
4. Worn tables or out of square tables.
5. Misaligned fence.
6. Wood being fed with bow up.

These are some of the more common. If the snipe is on every board, look at the pressure shoe parallel and the gap around the head. If you measure the length of the snipe at 2-1/2", that distance will provide your answer. From the head where the snipe is caused, the hold down on one side or the other will be 2-1/2 from the center of the spindle.

From Professor Gene Wengert, Sawing and Drying Forum technical advisor:
Is the snipe worse on longer pieces? Sometimes, when the outfeed (or infeed) table or support is inadequate, gravity will pull a longer piece down and force it slightly into the head.

From the original questioner:
Thanks for the suggestions. The snipe is not consistent and length doesn't seem to make a difference. That's what makes it so hard to figure out. My shop foreman went to Logosol's website where they have Logosol owners' phone numbers. He talked to three of them and they were all having the same trouble to some extent. We will check it out a little more but we may just have to live with it.

From Professor Gene Wengert, Sawing and Drying Forum technical advisor:
In order to get snipe, the wood must move into the cutting head. So, you need to look closely for a reason that the wood is allowed to move, or develop a system that will prevent movement.

Are you using a DH410 with the knives on the top of the lumber? Try elevating the infeed and outfeed tables slightly (1" in 8 feet for a test; do not use your hand to lift the wood, as this might result in a pinched hand, etc.), which will result in keeping the wood away from the head. If this works, then develop a permanent change for the tables.

Note that the pressure bar is supposed to stop snipe. If you have one (it is located right behind the knife head), then perhaps it is not tight enough... Generally it is about 3/1000 inch higher (larger opening) than the knife cut. The PB does wear and so it needs adjustment or it will be too loose (not tight enough). Further, each time you sharpen the knives (making them shorter), the PB needs to be moved or it will be too tight. Hence, some people will move the PB so far away that it is never too close and will never need adjusting after sharpening... This is incorrect and will cause snipe all the time.

Would you like to add information to this article?
Interested in writing or submitting an article?
Have a question about this article?

Have you reviewed the related Knowledge Base areas below?
  • KnowledgeBase: Knowledge Base

  • KnowledgeBase: Solid Wood Machining

  • KnowledgeBase: Solid Wood Machining: Setup and Maintenance

    Would you like to add information to this article? ... Click Here

    If you have a question regarding a Knowledge Base article, your best chance at uncovering an answer is to search the entire Knowledge Base for related articles or to post your question at the appropriate WOODWEB Forum. Before posting your message, be sure to
    review our Forum Guidelines.

    Questions entered in the Knowledge Base Article comment form will not generate responses! A list of WOODWEB Forums can be found at WOODWEB's Site Map.

    When you post your question at the Forum, be sure to include references to the Knowledge Base article that inspired your question. The more information you provide with your question, the better your chances are of receiving responses.

    Return to beginning of article.

    Refer a Friend || Read This Important Information || Site Map || Privacy Policy || Site User Agreement

    Letters, questions or comments? E-Mail us and let us know what you think. Be sure to review our Frequently Asked Questions page.

    Contact us to discuss advertising or to report problems with this site.

    To report a problem, send an e-mail to our Webmaster

    Copyright © 1996-2019 - WOODWEB ® Inc.
    All rights reserved. No part of this publication may be reproduced in any manner without permission of the Editor.
    Review WOODWEB's Copyright Policy.

    The editors, writers, and staff at WOODWEB try to promote safe practices. What is safe for one woodworker under certain conditions may not be safe for others in different circumstances. Readers should undertake the use of materials and methods discussed at WOODWEB after considerate evaluation, and at their own risk.

    WOODWEB, Inc.
    335 Bedell Road
    Montrose, PA 18801

    Contact WOODWEB

  • WOODWEB - the leading resource for professional woodworkers

      Home » Knowledge Base » Knowledge Base Article