Thread: Touch probe woe's
Hybrid View
-
27-01-2023 #1
These probes are basically to the original Renishaw design, which in effect have a pair of contacts that are closed before triggered and open when the probe moves the slightest amount. So this is the opposite logic to a touch plate that is grounded on touch. The probe incorporates an inverter so the output is active low.
I have the same probe that I use with Mach3 on a 5V BoB supplied by 5V from a USB wall wart - the probe connector is basically USB-C and I assume the electronics is designed for a 5V supply so I'd be wary about connecting the output to a higher voltage. If you can change the sense of the probe signal in your config, the easiest thing would be to just drive the gate of your MOSFET from the probe output and have a pullup to the Gecko +ve supply (which may be internal anyway). I'd just use a standard logic level MOSFET - or just an NPN transistor. The probes work great by the way.
-
The Following User Says Thank You to JohnHaine For This Useful Post:
Thread Information
Users Browsing this Thread
There are currently 9 users browsing this thread. (0 members and 9 guests)
Similar Threads
-
3D Touch Probe / Edge Finder - A Low Cost Probe?
By JohnHaine in forum Probing, Digitizing & ScaningReplies: 28Last Post: 25-11-2022, 04:15 PM -
3d touch probe
By johngoodrich in forum Tool & Tooling TechnologyReplies: 23Last Post: 24-10-2021, 06:14 PM -
Touch probe plans?
By Ross77 in forum Probing, Digitizing & ScaningReplies: 0Last Post: 03-09-2018, 10:07 PM -
Touch Probe Project
By Washout in forum Tool & Tooling TechnologyReplies: 2Last Post: 20-11-2013, 12:59 PM -
Touch Probe
By luke11cnc in forum Probing, Digitizing & ScaningReplies: 28Last Post: 31-01-2012, 01:16 AM
Bookmarks