Machining Small Parts on a CNC Vacuum Table
Quick tip: to maintain vacuum, onion-skin and cut out the smallest parts first. November 25, 2005
How small are the parts you are getting on a flat table router? I have a 4m flat table with two 250 vacuum pumps, using MDF as the sacrificial board. We are cutting drawer sides and seem to be getting part sliding on the smaller drawers (30cm X 10cm). The material is double sided 15mm melamine on a chipboard core. What size is your cutter and associated feeds?
From contributor D:
We rout out pieces down to about 150mm x 100mm. We also do carcass rails at 60mm wide by varying lengths. Machine sounds similar to yours. We use CadCode to produce the machine code. We set up CadCode to onion-skin the small parts. It routs these small parts first, leaving a thin layer on, then when all the small parts are routed, it comes back and cleans out the onion-skin, while the vacuum is best. Then the rest of the nest is routed out. We have almost no movement of any parts. Use onion-skinning, not tabbing.
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: CNC Machinery and Techniques
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.
335 Bedell Road
Montrose, PA 18801
Copyright © 1996-2018 - WOODWEB ® Inc.