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What did you do Today 2018

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Tim Taylor 230/12/2018 17:59:52
66 forum posts
8 photos

Just finished redesigning and downloading limit/homing switch mounts for my G0704 to my 3D printer.

While Mach3 does a pretty good job keeping track, it's nice to have real physical homing capability.

I'm also adding an adjustable switch for the Z axis that can be set to limit the low end of Z axis travel to avoid vise, fixturing, etc. Initially I was going to put it in series with the E-Stop circuit, but on reconsideration I think I will put it in the Z axis limit circuit.

Tim

Jeff Dayman30/12/2018 18:24:06
1642 forum posts
42 photos

Nice job Baldric on the slot cover. This is one of the extremely handy types of job for 3D printers. Great for part holding nests for machining or assembly too. Also great for low voltage electrical boxes for switches buttons motor enclosures etc.

martin perman30/12/2018 18:34:44
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1673 forum posts
67 photos
Posted by Tim Taylor 2 on 30/12/2018 17:59:52:

Just finished redesigning and downloading limit/homing switch mounts for my G0704 to my 3D printer.

While Mach3 does a pretty good job keeping track, it's nice to have real physical homing capability.

I'm also adding an adjustable switch for the Z axis that can be set to limit the low end of Z axis travel to avoid vise, fixturing, etc. Initially I was going to put it in series with the E-Stop circuit, but on reconsideration I think I will put it in the Z axis limit circuit.

Tim

Always better to put over travel and homing switches in the drive circuit as the axis can be recovered without to much hassle, putting in a Estop circuit can lead to the axis loosing its way and needing to be recalibrated.

Martin P

Tim Taylor 230/12/2018 21:18:40
66 forum posts
8 photos
Posted by martin perman on 30/12/2018 18:34:44:

Always better to put over travel and homing switches in the drive circuit as the axis can be recovered without to much hassle, putting in a Estop circuit can lead to the axis loosing its way and needing to be recalibrated.

Martin P

Which is part of why I changed my mind. The main reason though is that with E-Stop, nothing will move until the switch clears, while with axis limits, Mach3 can be configured to allow subsequent reverse axis movement away from the switch.

Tim

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