Re: Mounting dc42's Mini height sensor board May 14, 2016 03:12PM |
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Re: Mounting dc42's Mini height sensor board May 17, 2016 04:25AM |
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Re: Mounting dc42's Mini height sensor board May 17, 2016 06:50AM |
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Re: Mounting dc42's Mini height sensor board May 17, 2016 07:21AM |
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Re: Mounting dc42's Mini height sensor board October 22, 2016 06:17AM |
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Re: Mounting dc42's Mini height sensor board October 22, 2016 07:27AM |
Registered: 10 years ago Posts: 14,684 |
Quote
PeterSimpson
I have just fitted the mini-height sensor board to my ormerod 1 using Treito's plastic parts (http://www.thingiverse.com/thing:1395051) made from white PLA.
The electronics appears to be working fine. - The LED on the board flashes four times when I switch on (connecting the USB cable), Monitoring the Z probe on the web interface I get a reading of zero when far away from any reflecting surface, if I place a sheet of white paper a few millimetres from the sensor I get a reading of 463, which rises to 533 when I move it closer. All this seems to agree with the documentation.
If I move the X axis towards zero the sensor sees the sensor pad, the LEd illuminates an I get a reading of 533 on the Z probe. At this pont the board is about 10mm from the Z leadscrew, and can be moved a further 5mm before coming to the mechanical endstop. Even at this point the board is well away from any metal work.
However, if I send the Home X command from the web interface it moves to X0, the LED illuminates but the carriage continues to move an bang against the endstop until I do an emergency stop.
Do I need to make any changes to the firmware to tell it that a reading of 533 signifies that it has reached X=0? or is there anything else wrong?
Re: Mounting dc42's Mini height sensor board October 22, 2016 04:54PM |
Registered: 9 years ago Posts: 57 |
Re: Mounting dc42's Mini height sensor board November 09, 2016 10:54AM |
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Re: Mounting dc42's Mini height sensor board November 09, 2016 02:08PM |
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Re: Mounting dc42's Mini height sensor board November 10, 2016 06:42PM |
Registered: 9 years ago Posts: 57 |
Am I thick, or is there an instruction missing from the paragraph I quoted above which was in the setting up instructions for the duet board?Quote
dc42
The text is correct, no printing error.
Re: Mounting dc42's Mini height sensor board November 11, 2016 04:29AM |
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Re: Mounting dc42's Mini height sensor board November 11, 2016 09:26AM |
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Re: Mounting dc42's Mini height sensor board November 11, 2016 09:29AM |
Registered: 10 years ago Posts: 1,159 |
Quote
PeterSimpson
Thank you very much for the clarification. It appears that the answer to my very first question is 'yes"!!!
All this is of academic interest at present, because I have just discovered that in using the recommended parts for mounting the circuit board, the bottom edge of the circuit board is 5mm above the bottom edge of the printed 'x carriage' part which means that I can't take the sensor any lower than 5mm above the bed before tha x carriage crashes into the bed.
It looks as though I will either have to either cut 5mm or more of the carriage, or design and have printed a new sensor mount and sensor pad such that the board will be 5mm or more below where it is now.
Re: Mounting dc42's Mini height sensor board November 11, 2016 11:42AM |
Registered: 10 years ago Posts: 14,684 |
Quote
dougal1957
Quote
PeterSimpson
Thank you very much for the clarification. It appears that the answer to my very first question is 'yes"!!!
All this is of academic interest at present, because I have just discovered that in using the recommended parts for mounting the circuit board, the bottom edge of the circuit board is 5mm above the bottom edge of the printed 'x carriage' part which means that I can't take the sensor any lower than 5mm above the bed before tha x carriage crashes into the bed.
It looks as though I will either have to either cut 5mm or more of the carriage, or design and have printed a new sensor mount and sensor pad such that the board will be 5mm or more below where it is now.
It needs to be arround 2-2.5 mm above the bed when the Nozzle is just touching the Bed?
Re: Mounting dc42's Mini height sensor board November 12, 2016 06:07PM |
Registered: 8 years ago Posts: 34 |
I have one of these, from Filastruder, and like it very much. I'm curious - is the height of "make" on the diffIR a function of just beam aim from the LEDs, or is intensity wrapped up in that too?Quote
dc42
I recommend aiming for 1.5mm. Below 1mm there is a risk of the sensor contacting blobs or curl-up on the print, and above 2mm there is a risk that the sensor will not trigger.
Re: Mounting dc42's Mini height sensor board November 12, 2016 06:14PM |
Registered: 10 years ago Posts: 14,684 |
Re: Mounting dc42's Mini height sensor board November 13, 2016 08:38AM |
Registered: 10 years ago Posts: 1,230 |
Quote
dc42
I recommend aiming for 1.5mm. Below 1mm there is a risk of the sensor contacting blobs or curl-up on the print, and above 2mm there is a risk that the sensor will not trigger.
Re: Mounting dc42's Mini height sensor board December 28, 2016 02:04PM |
Registered: 9 years ago Posts: 57 |
Re: Mounting dc42's Mini height sensor board December 28, 2016 04:52PM |
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Re: Mounting dc42's Mini height sensor board March 10, 2017 08:23PM |
Registered: 7 years ago Posts: 4 |
Re: Mounting dc42's Mini height sensor board March 11, 2017 02:24AM |
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Re: Mounting dc42's Mini height sensor board March 11, 2017 04:19AM |
Registered: 7 years ago Posts: 4 |
Re: Mounting dc42's Mini height sensor board March 11, 2017 06:41AM |
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Re: Mounting dc42's Mini height sensor board March 11, 2017 07:01AM |
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Re: Mounting dc42's Mini height sensor board March 11, 2017 10:59AM |
Registered: 10 years ago Posts: 1,230 |
Quote
spinorkit
To fix this I bolted a 16x16mm aluminium channel extrusion diagonally under my heated bed and I use lots of medium size bulldog clips to hold the corners of the glass down. This gives me one warp-free diagonal.
The extrusion means I can't get swiss clips anywhere near the corners.
Thanks again,
Kit
Re: Mounting dc42's Mini height sensor board March 11, 2017 03:48PM |
Registered: 7 years ago Posts: 4 |