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Got it working. Rewired sensors to output ground... all works good now. I appreciate all the help in this forum. Extremely knowledgeable.

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Solved. Forgot to assign port numbers....silly mistake.

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In trying to get mach 3 recognize my e-stop button to c10 bob. I've wire it up as per instructions. I cant seem to activate any input in mach3 diagnostics page. I'm running win7 32bit with PCI...

Ok. I got the two proximity sensors wired in parallel to output 4.47v when triggered. However, mach 3 is not recognizing the sensor when I trigger it. I tried setting the pin jumper on c10 BOB to...

A little off topic but will all the different voltage is have, 48v, 12v, and 5v, should I be using the -48v ground for all negative connections?

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It measures +12.38v when off.

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Not surprising you can't find any data on them. They are those cheap Chinese ones from Amazon.

I did the suggested test. I measure +12v across blue and black wires. When sensor is triggered I...

This is the wiring diagram for two NPN NO sensors in parallel from the c10 BOB manual. I confused as to why it says to use a resistor if its integrated into c10 BOB. ...

Ok. That makes sense now. That's for the help. I'll remove the resistor and wire directly to BOB. Thanks for the help.

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Hi. The is the proximity sensor I'm using.

LJ12A3-4-Z/BX Inductive Proximity Sensor Detection Switch NPN DC6-36V 4mm Normally Open Proximity Switch.

Im using a resistor to lower voltage to...

I have a concern regarding my npn NO sensors. I have them wired up in parallel with a resistor to drop 12v input to 5v. I have the resistor from -12v (blue wire) jumped to output (black wire). All...

Thanks for all the great info. I'll buy some 1k ohm resistors.

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Would it matter if I use 1/4 watt or 1 watt resistors?

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Sorry bit I'm still a bit confused. Is 6400 ohm resistor used for one switch and 1000 ohm resistor for using two switches like in the diagram? Appreciate all the help John.

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I think I'll do this diagram. Couple questions about it. There are many different 1n4148 diode values, does it matter which one I get? I need 1k ohm resistors? Ive read to use 10k ohm resistor to...

The #4 diagram will do two npn nc switches in series per axis correct? That is what I would like to do. I have six switches in total. Two per axis.

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Can I wire it in parallel? Or run each one individually to c10 inputs?

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I don't have the data sheet but this is the part number LJ12A3-4-Z/Ax your basic Chinese npn switch. I'll be using a 12v power supply to power the switches, not the c10 BOB. Forgive me but I'm a...

Hello. I'm in the process of wiring up the two NPN NC proximity sensors to the c10 BOB. I've read since they are NC that they should be wired in series. Is that correct? I've also read that I...

Perfect! Thanks for the help. Another question I have is can the c10 BOB trigger the router to turn on when the job begins and off when it's done?

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The c10 BOB I have is revision 10.3. I plan to use two limit switches per axis. I guess the two the two limit switches per axis will be in series. So its best to wire limit switch to NC and have...

The c10 BOB has 5v for the switches. I'll be running mach 3.

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Hi. I'm fairly new to cnc world. I am building my own cnc router machine. I'm currently trying to wire up limit switches to the c10 BOB. I have NO/NC switches and I don't know if I require the...

So I've decided to go with kl-8056d drivers and a c10 BOB. I've set up my pc with linuxcnc. I was thinking of get the kl-db25-5 in case I go with a spindle in the future.

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Thanks for letting me know. I am looking at the 5056D. Is a smoothstepper recommended to have or would it be overkill? Of course I want I accuracy but is it worth the additional cost if my desktop...

Thanks for all the comments. I've taken the gecko g540 off my list due to the 3.4a current limit. I'm deciding between the mx4660 or four KL-5056D DIGITAL BIPOLAR STEPPER. I'm not opposed to...

That is correct. That one on my reasons I was looking at the mx4660. I'm hesitant on it due to lack of documentation and protection upgrades I may need to purchase like a surge protection.

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Which individual drivers with Bob would you recommend? Hopefully in the same price range as the gecko g540.

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Hi. New here and fairly new to cnc. I'm building a 5ft x 9ft CNC router setup with four 420 oz-in 3.0 mH NEMA 23 Stepper Motor, 3/8" Shaft from cnc router parts and a 48v 12.5a power supply. I'm...