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Messages - Tilezzzzz

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1
Thanks guys,

So I have messed with the acceleration settings of the motors and it made a very slight difference I think but it did not solve the problem of going to far after hitting the home switch.

I have also tried adding debounce (up to 4000 from 0) in the general config settings however that dident seem to make any difference to the problem I have when limit switches are enabled.

I have however found a way of homing without my machine trying to destroy itself, that was to turn the homing speed down to 3%, that way it doesn't go far past the switch before it backs off. (This is still with the limit switches turned off)

Im not sure if it makes a difference but the Diver board im using is DDSM4V5.0, which came with a DDream plugin for Mach 3. In the manual it recommends going to the plugin config and adding the following values which is what I currently have set. Should I be changing these settings to something else in the plugin config?

Device Buffer: 400ms

Jog Buffer: 100ms

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I do however have a new problem though which I dident notice before., My machine wont home Y axis, it does Z, the X and thinks that it is finished. I have checked Y axis is enabled everywhere I can think of and I am able to jog the machine along the Y axis with no problems. Also upon importing Gcode it doesn't show up in the table view so I think the machine must think it cant use Y for some reason? Any ideas? :) -

Thanks guys,


2
Ohh I think I understand now.

Where should i be adjusting the acceleration/decelaration? Should that be edited in general config or somwhere in the motor settings?

Is there a recommended setting?

Thanks guys

3
Thanks for the quick reply ger21

I'm a bit confused to be honest.

"For a limit, Mach3 reacts as soon as the switch is tripped.

For a home, Mach3 keeps moving until the switch is tripped"

Is that not the same thing? If the switch is tripped its tripped, its either open or closed I dident think there was any middle ground. I'm not sure why when limit switch's are enabled and I do a refallhome mach3 stops straight away every time showing as limit switch hit, but when they are disabled in homing mode it keeps going for a bit when hitting the same switch before then backing off. :(

Everything ive read online so far says when homing mach 3 should ignore limit switches completely even if they are effectively the same switch as the home switch and on the same pin.

4
General Mach Discussion / Limit switch being triggered whilst homing?
« on: July 04, 2015, 08:27:00 AM »
Hi guys,

My homing and limit switches are the same and all are wired in series to the same one port.

If I hit a limit switch it is triggered straight away in mach and works great.

My problem is when I am trying to home all the axis. If I have my limit switches enabled when it homes as soon as it hits the limit/home switch Mach3 sees the limit switch triggered and just stops. I thought Mach 3 was set to ignore limit switches when homing?

If I disable the limit switches whilst homing Mach3 does home but it seems to go past the switch trigger by about 1 second before starting to back off, which is odd as when limit switch is turned on as soon as the switch is hit mach sees it and stops.

Any help would be much appreciated!.

Thanks

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