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I finally figured it out! The pocketing operation was set as a High Speed tool path. That setting appears to round 90 degree corners. I reset it as Parallel Spiral and the corners are correct. I...

I haven't seen any parameters that would create this issue, but further digging will need to be done. I'm mostly self taught, so I may have missed something. However, this is the first time I've...

I did a close inspection of the toolpath in Mastercam and have found where the error occurred. If the pickup cavity is done as a pocket operation, the finish pass of the perimeter is an arc at the...

I've just finished cutting a Jazz bass pickguard and the corner radius of the pickup cavity does not match the drawing. It's supposed to be .125" radius but is much closer to .1875" and is close to...

Hi Tom,

After a long holiday break I ran a test cutting a rectangle and all went well. I reversed the OutputGain on the Z axis as recommended above and that fixed the problem.

When I ran the...

Thanks Tom,

All seems to be working well at this point in KMotionCNC except the Z axis is reversed (press "page up" and it goes down). I'm using a standard keyboard not a game pad. Where would I...

Hi Tom,

All 3 axis work perfectly when I entered Velocity, Acceleration, Jerk and pushed Move. It's alive! Thanks! The graphs looked good. Do I need to save these settings to KFLOP or is it...

Ok, so all is good with the configuration screen, so on to Step Response.

I must say this is a very confusing menu. I understand a little from many readings of the KFLOP manual, but don't...

Hi Tom,

In open collector mode you previously made reference to "sink to GND". Does that require anything beyond just setting OutputChan=0?

Bob

So if Output Channel = 0 it's directed to Step/Dir Generator 0 which is connected to IO 8 and 9, but those pins still have to be driven to function...? If Output Channel = 8 would that bypass the...

Tom,

I apologize but I believe my last post left out an important piece of information and caused some confusion. This is what I meant. On the Configuration menu, with Channel set at "0" - Axis...

In the Step and Direction Setup link you provided the following is stated:
"If an axis channel is selected as a Step and Direction axis, the corresponding 2 output pins will be automatically...

Tom, after a lot of further reading and rereading I've organized my questions for the Configuration Menu in KMotion. First of all as a reminder, I'm setting up a closed loop servo system with Gecko...

Thanks Tom for all the information. I've completed all the wiring and am using a slightly modified version of the electro-mechanical estop circuit provided by Gecko. I've run some power up and...

Claude, your last gecko link has a resistor value in the circuit that contradicts the previous link's value. They are 2 different circuits, but they're trying to accomplish the same thing... dump...

Thanks Claude for the link. I read through it and I must admit it devises a formula for the value of the power dump resistor, though it's a bit complicated. Electronics is not my strong point, but...

Well, with a lack of any specific info on the Gecko estop capacitor, I've decided to just try what makes sense to me. I'd appreciate everyone taking a look at my wiring posted below and let me know...

Tom,

I have a question just so I'm aware of the capabilities of the KFLOP. If the estop was wired exclusively to the board in the ways you've mention on the forum (no electro-mechanical set up),...

Al, I measured the voltage at the filter caps and it's 34vdc as you stated. Thanks for the tip (lesson)!

So according to Gecko's recommendation the dump resistor should be 3.4 ohm. Regarding the...

Al and Larken, thanks for the input. When I measured the dc voltage it was at the output of the rectifier. No filter caps were hooked up. I'll measure again with the caps in the circuit and see if...

I'm adding an electro mechanical estop circuit to my existing K2 cnc router with Gecko 320DC drives. I'm basing it on the diagram on the Gecko website that I've attached below. Not having much...

Hi Tom,

Thanks for the explanation. Since it seems to involve messy wiring and potential noise issues, I think it's prudent for me to pass on trying to maintain my home position after an estop. ...

Yes, I understand there are 2 parts to the estop I'm setting up, when all that is really needed is to stop the machine quickly, regardless of the software. My hope is a simultaneous shut down of the...

It's been awhile since I posted on this topic as I had to finish a project. I've got almost all the parts needed and mounted in a new case. Just waiting for a capacitor and resistor for the load...

Tom, is it possible to set up a KFLOP system as a closed loop? If so, would that require additional hardware and/or set up?

Thanks Tom for the info. From what I've read, it seems the safest way to wire an estop is to have a dual relay break the power to the motors and send a signal to KMotionCNC that an estop has occured...

Thanks Tom, interesting thread. From what I can get from this is there are a couple of ways to go about wiring an estop. One way would be doing it at the gecko's by sending the Error/Reset terminal...

One of the wiring connections I couldn't figure out on my K2 was the emergency stop switch and how to integrate it into the KFLOP system. Mike at K2 informed me that their old set up had the e-stop...

I just received my KFLOP board and am ready to start on the challenging task of getting it up and running on my K2CNC 3925 router (Gecko 320 DC servo drives). I am not at all experienced at cnc...

After doing a google search I found a link to the mach support ftp site. I installed Mach3 version 3.042.040 and it has run normally for one day. What a relief! Thanks to ger21 for the suggestion.