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Rostock MAX v2 - End stop wire path
Posted: Sat Sep 05, 2015 1:55 am
by fwkseemecnc
I am now installing the top plate, and running the wires. I am confused with the below. Kindly help.
1. Fig 7-35 of the manual (pg 109) shows the end stop wire goes X and Y axes, & Z and Y axes. But the end stop wires are coming out of the X tower, so it should be Y and X axes & Z and X axes. I am confused.
2. Fig 7-23 (Pg 104) top plate orientation and the Fig 7-35 (Pg 109) is different. Which is correct?
TQ
Re: Rostock MAX v2 - End stop wire path
Posted: Sat Sep 05, 2015 4:57 pm
by ZenOhSix
fwkseemecnc wrote:I am now installing the top plate, and running the wires. I am confused with the below. Kindly help.
1. Fig 7-35 of the manual (pg 109) shows the end stop wire goes X and Y axes, & Z and Y axes. But the end stop wires are coming out of the X tower, so it should be Y and X axes & Z and X axes. I am confused.
2. Fig 7-23 (Pg 104) top plate orientation and the Fig 7-35 (Pg 109) is different. Which is correct?
TQ
Make sure you are using the latest manual, which is the 3rd edition and located here:
http://download.seemecnc.com/rostockmax ... dition.pdf
RE: #1 - See under the picture in yellow, this quote: [Top plate is flipped in the photo, so the upper wire path will run from the Z axis to the Y axis!]
RE: #2: PG 109 is upside down.
I just built that section yesterday. I am almost finished with the Hot End (have the Effector Plate and CF Arms ran now).
Thanks
Mike
Re: Rostock MAX v2 - End stop wire path
Posted: Sat Sep 05, 2015 6:23 pm
by teoman
If you understand what you are doing and why you are doing it then life will be easier.
What you are trying to avoid on top, is having your endstop wires run close or parallel to the other wires. The reason for this is that they are wires that carry a signal, the others carry power. But while carrying power they switch on and off during which process they act like a transmitting antenna. Your endstop wires carry a signal, and also act like a receiving antenna.
If your hotend wires receive a disturbance, it will heat your nozzle 0.0000000000001 degrees C. But if your endstop wires receive a disturbance they transmit that to your controller, which thinks: "Oh no, the carriage is at its limit, I should not move it any further". And even if you lose a couple of mm that way, that is enough to ruin your print.
On the firmware, you should disable the lower endstops and then disable the endstops once the printer is in motion.
Re: Rostock MAX v2 - End stop wire path
Posted: Sun Sep 06, 2015 2:59 am
by fwkseemecnc
Ok noted of endstop signal cables to avoid the power cables. Will do that and TQ