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Thomas Braun
Oct 6, 2013, 5:30:48 PM10/6/13
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Hi Herb and all,
I have a question about the wiring diagram v1.04.
One difference compared to the wiring diagram from the build video is
the routing of the heater current.
Although there also seems some kind of error in that area in Marks
"schematic".
Mark routes the heater current *not* through the key switch, Herbs
schematic does route it through the key switch.
Is there a rationale for the decision to route the heater current
through the key switch?
Thomas
I have a question about the wiring diagram v1.04.
One difference compared to the wiring diagram from the build video is
the routing of the heater current.
Although there also seems some kind of error in that area in Marks
"schematic".
Mark routes the heater current *not* through the key switch, Herbs
schematic does route it through the key switch.
Is there a rationale for the decision to route the heater current
through the key switch?
Thomas
Herb Winters
Oct 6, 2013, 7:21:47 PM10/6/13
to
ya, I made only a few changes from marks schematic that I felt were safer.
1. I setup the Key switch so that it turns OFF everything. The Idea is that if you had a problem and smoke was comming out everywhere turniing off the Key should be able to stop most problems.
2. all switching was done on the HOT side (Black AC Line wire) this is how I'm used to wiring Industrial Machines and I believe this is the norm.
About the schematic in the video. Mark kind of implied that the official schematic would be given out later then on Vid #2 he pops up a schematic however it looks to be an early version because the SCR, Heater Switch and the PID have multiple wiring errors that will prevent all from working also the main Extruder motor is powered from the PCB power connection (Red wire on video schematic) which means that if you turned off the spool switch it would disable the Main Extrusion motor. This is not how he shows the unit to work.
so I feel that it was shown just to let us know he was working on the schematic not as how it should be wired.
Don't really know.
1. I setup the Key switch so that it turns OFF everything. The Idea is that if you had a problem and smoke was comming out everywhere turniing off the Key should be able to stop most problems.
2. all switching was done on the HOT side (Black AC Line wire) this is how I'm used to wiring Industrial Machines and I believe this is the norm.
About the schematic in the video. Mark kind of implied that the official schematic would be given out later then on Vid #2 he pops up a schematic however it looks to be an early version because the SCR, Heater Switch and the PID have multiple wiring errors that will prevent all from working also the main Extruder motor is powered from the PCB power connection (Red wire on video schematic) which means that if you turned off the spool switch it would disable the Main Extrusion motor. This is not how he shows the unit to work.
so I feel that it was shown just to let us know he was working on the schematic not as how it should be wired.
Don't really know.
Thomas Braun
Oct 9, 2013, 12:00:28 PM10/9/13
to Extrus...@googlegroups.com
Am Sonntag, den 06.10.2013, 15:00 -0700 schrieb Herb Winters:
> ya, I made only a few changes from marks schematic that I felt were safer.
>
> 1. I setup the Key switch so that it turns OFF everything. The Idea is that
> if you had a problem and smoke was comming out everywhere turniing off the
> Key should be able to stop most problems.
> 2. all switching was done on the HOT side (Black AC Line wire) this is how
> I'm used to wiring Industrial and I believe is the norm.
> ya, I made only a few changes from marks schematic that I felt were safer.
>
> 1. I setup the Key switch so that it turns OFF everything. The Idea is that
> if you had a problem and smoke was comming out everywhere turniing off the
> Key should be able to stop most problems.
> 2. all switching was done on the HOT side (Black AC Line wire) this is how
Hi Herb,
thanks for the explanation.
I for my part wired the SSR directly to the connector as Mark shows in
the video as I have a separate emergency off switch.
Thomas
Herb Winters
Oct 9, 2013, 1:32:32 PM10/9/13
to
an external Off switch is always the safest option.
Sounds good.
Herb Winters
Oct 31, 2013, 9:13:14 PM10/31/13
to
I need to correct what I said above. What I should have said was I only made a few changes to the parts of the circuit that were functional.
I did make many changes to things in the schematic that were not going to work. When I started that previous reply I had planed on explaining this but got distracted and when I came back and finished it I forgot the rest.
Sorry.
I did make many changes to things in the schematic that were not going to work. When I started that previous reply I had planed on explaining this but got distracted and when I came back and finished it I forgot the rest.
Sorry.
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