-
21-08-2009 #1
Been looking at electronic edge finders that light up when they touch the edge of the workpiece, but don't see how they work. Is it that touching the workpiece completes a circuit through the mill - this seems a tad tenuous, or does the contact close a switch in the finder.. in which case how sensitive is that if these are good to .02mm or better! Thoughts?
-
21-08-2009 #2
Well have you seen the edge finder a guy posted on the zone ? i also read about a guy who took the mouse from an old laptop and turned it into a edge finder.
Is that the kind of thing you mean or ?.Me
-
21-08-2009 #3.Me
-
21-08-2009 #4
-
21-08-2009 #5
The tip is insulated and when it touches the workpiece, the circuit is completed and the LED lights.
Too bad if you're machining plastic.
-
21-08-2009 #6
-
21-08-2009 #7
-
21-08-2009 #8
-
21-08-2009 #9
Especially if the spindle has ceramic bearings no ?
.Me
-
22-08-2009 #10that means the circuit is tip, workpiece, table, column, head, chuck... surely not... a tad tenuous at best...
You can get touch probes that are effectively sensitive normally-closed switches (usually three switches in series at 120' to each other) relying on movement of the probe to open the switches and the closed position of the switch as a position reference.
Nice home-brew design here:
http://tmonnot.free.fr/Fraisage/Palpeur3D.htm
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
Any ideas or thoughts on making a edge finder come touch off tool
By suesi34e in forum Electronic Project BuildingReplies: 26Last Post: 01-01-2020, 06:28 AM -
1/4" / 6mm edge finder?
By jcb121 in forum Marketplace DiscussionReplies: 0Last Post: 18-03-2013, 02:58 PM -
budget matching of electronic components.
By polop in forum General ElectronicsReplies: 2Last Post: 16-07-2011, 03:55 PM -
is it possible to slot the edge on a cnc?
By wyndham in forum General DiscussionReplies: 2Last Post: 21-06-2011, 12:25 AM -
Getting electronic components
By Ross77 in forum General ElectronicsReplies: 23Last Post: 16-08-2009, 10:13 AM
Bookmarks