That's what the E-Stop button is for. Until you have homing nailed down, you should keep your hand over the E-Stop button while running risky procedures.
Also, there is no reason why you need to home close to a hard stop when first testing software. Move your home switch so it makes well before you hit a hard stop so you have some time to take corrective action to prevent a machine crash. Or put a cardboard box under the Z axis so it hits the cardboard first and trips. If it keeps going through the cardboard you have some time to hit the E-Stop before tweaking your Z axis. Also, slow down your homing routine so you have more reaction time. Then speed it up after you are confident in the software. Dave On 4/13/2016 12:25 PM, dan...@austin.rr.com wrote: > I have an XHC-HB04 wireless MPG that doesn't "quite" work yet. While working > on it, I had a thought. > > Homing is one of the riskier functions. You could Z-down to a touch plate and > not realize the plate's not underneath it at all and go scrambling to stop > it. Having automated process buttons that take command away from the > operator are inherently risky. > > My idea would be that you would have to HOLD DOWN the Home Z button for the > process to continue. If you release the button before it's complete, the > axis just stops and it forgets about homing. > > This would tend to direct your attention to what's happening and if things go > wrong you just let go. Also if you were to accidentally press the Home Z > button, nothing serious would happen. It would bump down like 1/4 in and > stop when you realized you pressed the wrong button. > > What might it take to implement such a thing? I do have trivkins for the > gantry, and the homing is already a somewhat complicated special-case. > > Danny > > ------------------------------------------------------------------------------ > Find and fix application performance issues faster with Applications Manager > Applications Manager provides deep performance insights into multiple tiers of > your business applications. It resolves application problems quickly and > reduces your MTTR. Get your free trial! > https://ad.doubleclick.net/ddm/clk/302982198;130105516;z > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
