Messages

1

General Mach Discussion / Re: Limit switch issues

« on: November 11, 2019, 02:35:36 PM »

Thanks Gents, I have reversed my Y Axis  as suggested Y+ Is now assigned as Y+ (&  Y Home) Opposite end is Y- (&  Y Limit)
X + is also X Home and X- is X Limit
and have also designated Z top of travel to Z+ (& Home)
I'm still unsure if my Limit and home switches are correctly positioned.
I'm getting confused with the table in the ESS Setup. (Attached)

George

2

General Mach Discussion / Re: Limit switch issues

« on: November 07, 2019, 03:31:41 PM »

I'm not sure if I have assigned the switches to the correct position on my Router Any help here would be appreciated.

3

General Mach Discussion / Limit switch issues

« on: November 07, 2019, 11:56:18 AM »

Please help,

After a long break away from my Router machine I decided on a rebuild.
I'm now using Mach4 with an ESS Smooth stepper
All 3 axis motors are running fine and I can Jog in all directions (until I configure my Limit Switches)
I have used 5 Limit Switches.
One for the Z Axis top of Travel. Z-
One for X Home and X - (Shared)
One for X +
One for Y Home and Y- (Shared_
One for Y+

I keep getting messages like 'Cant Jog towards limit switches etc'
Can anyone help me getting the correct boxes ticked in Mach4 setup and ESS Setup. I'm getting my knickers in a right twist. Need help.

Thanks

George

4

General Mach Discussion / Re: CNC4PC C11 plugin for Mach3

« on: August 23, 2019, 01:07:47 PM »

All done now Craig. Thanks

5

Mach4 General Discussion / Re: Limit switch config help please.

« on: August 18, 2019, 04:29:23 PM »

Thanks Craig, I didn't realise you were on the other side of the world :-)
I take your point about the overvolting the inputs!
Also I would not need the 12v supply that is feeding the Proximity sensors.
Roll overs are much easier to set up so I'll consider it.

So am I correct in assuming that X +++ and X--- can be wired in series and use the same input pin on the C10 ?? (Same for y & Z of course) but then again if all 5 switched are wired in series and are set normally closed, then any one of the switches being triggered will cause a stop ??
In this configuration do I need a home switch ?? or do I set this as the same as x+++ etc ??

Thanks,

George

6

Mach4 General Discussion / Re: Limit switch config help please.

« on: August 18, 2019, 11:25:20 AM »

So, I would use 2 limit switches for for each of the X & Y movement but only one for Z (Fully raised)
Can I double up on the Positive limit for the Home switch ? Or dont' I need the Home with this configuration ?
I have several of the limits switches so why not use them, any idea on the wiring ??

George

Hi,

Can I use the same switch for home and Limit for each of my axis or do I really need separate switches

Yes you can but I always recommend separate home and limit switches.

do I really need X+ and X- limit switches.

If you are going to have limit switches then yes....you need two switches per axis, one at the positive limit and another at the negative
limit. You could use 'soft limits' instead of limit switches. Genuine limit switches are safer but if you have good home switches
and homing procedures then soft limits are a reasonable proposition. If you  don't have good home switches and homing
procedures then you better have limits or you will crash badly and repeatedly.

Craig

Craig, I have several of these Proximity sensor, If you would like a couple I'll happily post them out to you.
George

7

Mach4 General Discussion / Re: Limit switch config help please.

« on: August 18, 2019, 11:23:04 AM »

10K resistor in place as shown and now working, thanks for the help.

George

8

Mach4 General Discussion / Re: Limit switch config help please.

« on: August 18, 2019, 08:33:23 AM »

So, I would use 2 limit switches for for each of the X & Y movement but only one for Z (Fully raised)
Can I double up on the Positive limit for the Home switch ? Or dont' I need the Home with this configuration ?
I have several of the limits switches so why not use them, any idea on the wiring ??

George

9

Mach4 General Discussion / Re: Limit switch config help please.

« on: August 18, 2019, 06:39:36 AM »

With the sensor wired this way I get 'Cant Jog to x Limit. Input state LED is Lit.
If I cover the sensor then jogging is OK, The input state LED goes out!
Looks like I may have too much or too little Voltage at the input pin,.
The sensor is working backwards ??

10

Mach4 General Discussion / Limit switch config help please.

« on: August 18, 2019, 05:49:25 AM »

I have just Migrated to MAch 4 with an ESS Smoothstepper+C11+C10s breakout boards.

I have a 3 axis Gantry router and want to place my limit and home switches,
Can I use the same switch for home and Limit for each of my axis or do I really need separate switches, do I really need X+ and X- limit switches.

I'm using the sensor shown but I 'm having trouble wiring it in. I'm applying 12v to sensors +ve & -ve with a 2K external resistor across the Black and Brown terminals.  Black terminal then is fed to the Input of the BOB.   Is this correct