After-Market Tool Holder Parts for CNC Equipment

      CNC owners discuss where to find minor accessories for their CNC gear — and how to fabricate their own parts from plastic, on the CNC itself. March 3, 2009

Wondering where I should be looking for spare parts for my Biesse Rover 37. I'm interested in tool clips and they will cost me $300 a pop through the manufacturer. Anyone know how I can procure spare parts like tool clips?

Forum Responses
(CNC Forum)
From contributor R:
Are you referring to tool holders? I never heard of tool clips, what are they used for?

From contributor A:
If you watch the auctions there are often auctions with boxes of parts and tooling that go pretty cheap. We got about 10k of parts, pods and tooling for our Weeke for about $250 last year.

From the original questioner:
Yes I’m referring to a tool holder.

From contributor M:
I'm still confused. Are you looking for tool holders or tool holder "grippers". Tool holder grippers stay attached to the tool changer and hold the tool holders.

From contributor R:
The least expensive tool holders but of high quality I purchase from Guhdo. They are usually half the price of any other manufacturer.

From contributor T:
I have one observation referencing tool holders and in particular Biesse fixed position (bed mounted) magazines. For clarity - I will refer to the holder which accepts the collet/tool as tool cone. I will refer to the carousel or magazine portion as the cone holder.

Often aftermarket tool cones come with predrilled balancing holes. It is common practice, but different manufacturers drill in different locations. In the bed style cone holders used on older model Biesse's and some other machines, the aluminum fork (which holds the cone) uses a spring loaded retention pin to keep the cone stabilized within the fork enough that the cones do not come out when the forks are pneumatically driven up but allow for the electrospindle to remove the cone laterally when retrieving a stored tool. Most router spindles do not have an orient feature. When the spindle receives the command to stop, it stops but not in the same place every time.

If you purchase cones with predrilled balance holes located in the trapezoidal groove which locates the cone in the cone holder, over time the holes damage the springloaded pin (deformation, burring) and cause the cones to "stick" in the cone holder. This can result in broken cone holders requiring replacement and related calibration issues.

So be very careful when using aftermarket cones! Inspect your magazines regularly, especially the condition of the springloaded retaining pin. As for the original post, if referencing the cone holders my recommendation is to have them reverse engineered at a local machine shop.

From the original questioner:
The manufacturer of the "tool-holder-gripper-finger" wants $300 per unit. They are nylon with metal "mounts" that use capped machine screws to hold them to the tool mag. I was just wondering if I could fine these "tool clips" somewhere else. Looks like auctions are a good bet.

From contributor R:
I know the type of holder you are talking about. I've helped several clients write programs for their own CNC's that can make the plastic parts of the holders. Is that an option for you? McMaster-Carr usually has the right types of plastic. You might need some type of holding fixture, but that’s not a real issue. I've even helped customers make their own rotary carousel for an eight position changer.

From contributor L:
We've made the plastic tool holders for our machine from UHMW. It looks like the same thing the originals were made from. A lot cheaper than buying the molded ones and seems to last just as long. UHMW is available from all the plastic suppliers. "O" flute bits seem to cut it nicely.

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: Computerization

  • KnowledgeBase: Computerization: CNC Machinery and Techniques

    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 © 1996-2016 - 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