Anyone interested in a modulated IR sensor + fan control + illumination board?
Posted by dc42
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Re: Anyone interested in a modulated IR sensor + fan control + illumination board? March 27, 2014 09:18AM |
For the benefit of those who are in the process of assembling a kit 5 early, I have added design and STL files for an insulating cover that includes a holder for the ultrasonic transducer.
The new files are in the usual place [github.com]. You may need to extend the x-homing tab a little further in the +x-direction so that the IR sensor sees it before the insulator stops against the z-nut trap. I put an oversized piece of white sticky label on top of mine.
Edited 1 time(s). Last edit at 03/27/2014 09:18AM by dc42.
Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod
Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
The new files are in the usual place [github.com]. You may need to extend the x-homing tab a little further in the +x-direction so that the IR sensor sees it before the insulator stops against the z-nut trap. I put an oversized piece of white sticky label on top of mine.
Edited 1 time(s). Last edit at 03/27/2014 09:18AM by dc42.
Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod
Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
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Re: Anyone interested in a modulated IR sensor + fan control + illumination board? March 27, 2014 03:29PM |
Just printed the duct, might not fit it yet if it needs modifying 
Another RS Ormerod Mk1 meets the world
Retired now but I used to make....
CNC Machined Mk1 aluminium bed support plates for the Ormerod
CNC machined X-plates and ribs for Mk1 & Mk2 Ormerods
CNC machined bed support arms for the Mk2 Ormerod.
Dual Hot-End heatsink blocks.
Another RS Ormerod Mk1 meets the world
Retired now but I used to make....
CNC Machined Mk1 aluminium bed support plates for the Ormerod
CNC machined X-plates and ribs for Mk1 & Mk2 Ormerods
CNC machined bed support arms for the Mk2 Ormerod.
Dual Hot-End heatsink blocks.
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Re: Anyone interested in a modulated IR sensor + fan control + illumination board? March 27, 2014 03:36PM |
Quote
Davek0974
Just printed the duct, might not fit it yet if it needs modifying
You don't have to use the one-piece duct with my sensor board, because johneato has kindly provided a variation on the standard 2-piece duct to include mounting holes for the board.
Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod
Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
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Re: Anyone interested in a modulated IR sensor + fan control + illumination board? March 27, 2014 03:53PM |
Quote
dc42
Quote
Davek0974
Just printed the duct, might not fit it yet if it needs modifying
You don't have to use the one-piece duct with my sensor board, because johneato has kindly provided a variation on the standard 2-piece duct to include mounting holes for the board.
Ooh, nice, where would that be located please?
Just want to make sure I have all the parts printed for when I strip down to fit the board
Another RS Ormerod Mk1 meets the world
Retired now but I used to make....
CNC Machined Mk1 aluminium bed support plates for the Ormerod
CNC machined X-plates and ribs for Mk1 & Mk2 Ormerods
CNC machined bed support arms for the Mk2 Ormerod.
Dual Hot-End heatsink blocks.
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Re: Anyone interested in a modulated IR sensor + fan control + illumination board? March 27, 2014 04:01PM |
Quote
Davek0974
Quote
dc42
Quote
Davek0974
Just printed the duct, might not fit it yet if it needs modifying
You don't have to use the one-piece duct with my sensor board, because johneato has kindly provided a variation on the standard 2-piece duct to include mounting holes for the board.
Ooh, nice, where would that be located please?
In the same folder at [github.com] as the other one. It's called Modified heatsink-duct12.stl. You'll also need to cut off the cable tie loop on the original fan duct.
Edited 1 time(s). Last edit at 03/27/2014 04:02PM by dc42.
Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod
Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
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Re: Anyone interested in a modulated IR sensor + fan control + illumination board? March 27, 2014 04:05PM |
Thanks getting it now
Another RS Ormerod Mk1 meets the world
Retired now but I used to make....
CNC Machined Mk1 aluminium bed support plates for the Ormerod
CNC machined X-plates and ribs for Mk1 & Mk2 Ormerods
CNC machined bed support arms for the Mk2 Ormerod.
Dual Hot-End heatsink blocks.
Another RS Ormerod Mk1 meets the world
Retired now but I used to make....
CNC Machined Mk1 aluminium bed support plates for the Ormerod
CNC machined X-plates and ribs for Mk1 & Mk2 Ormerods
CNC machined bed support arms for the Mk2 Ormerod.
Dual Hot-End heatsink blocks.
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Re: Anyone interested in a modulated IR sensor + fan control + illumination board? March 27, 2014 05:07PM |
Hi Dc42
Kit arrived today, looks excellent, thanks.
Now i just need to chance my defect extruder stepper. Nice worke for the weekend
jan
XB70
Kit arrived today, looks excellent, thanks.
Now i just need to chance my defect extruder stepper. Nice worke for the weekend
jan
XB70
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Re: Anyone interested in a modulated IR sensor + fan control + illumination board? March 28, 2014 02:37PM |
Hi folks,
As an alternative to re-printing the X-Axis motor mount, please find below my sensor tab. This mounts using the screw holes already present in the motor mount for a mechanical end stop. It will work both with and without the ultrasonic sensor.
sensorpad.scad
sensorpad.stl
Edited 1 time(s). Last edit at 03/28/2014 02:38PM by stevelup.
As an alternative to re-printing the X-Axis motor mount, please find below my sensor tab. This mounts using the screw holes already present in the motor mount for a mechanical end stop. It will work both with and without the ultrasonic sensor.
sensorpad.scad
sensorpad.stl
Edited 1 time(s). Last edit at 03/28/2014 02:38PM by stevelup.
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Re: Anyone interested in a modulated IR sensor + fan control + illumination board? March 30, 2014 06:15AM |
I have just installed and commissioned my new kit 5 - all went in fine, looks great and everything appears to be working fine, BUT I have two commissioning niggles that I would appreciate some advice on:
1) when I disconnect the hot end thermistor during commissioning testing, as per DC's (excellent) instructions, the temperature reading doesn't drop to -273 as it apparently should, it only drops to a value between -2 & -5...thoughts anyone on what I've got wrong?
2) and I do realise this is a real newbie question which way should the fan be blowing?! I am still using the originally supplied fan and rewired it exactly as per the instructions, but now the fan appears to be pulling air out wards (i.e. Away from the heat sink ) rather than blow it into the heat sink as I could have sworn it was doing previously - can someone please put me right, as I'm refraining from printing until I'm sure
1) when I disconnect the hot end thermistor during commissioning testing, as per DC's (excellent) instructions, the temperature reading doesn't drop to -273 as it apparently should, it only drops to a value between -2 & -5...thoughts anyone on what I've got wrong?
2) and I do realise this is a real newbie question
which way should the fan be blowing?! I am still using the originally supplied fan and rewired it exactly as per the instructions, but now the fan appears to be pulling air out wards (i.e. Away from the heat sink ) rather than blow it into the heat sink as I could have sworn it was doing previously - can someone please put me right, as I'm refraining from printing until I'm sure
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Re: Anyone interested in a modulated IR sensor + fan control + illumination board? March 30, 2014 03:29PM |
Genius @DC42 
- adjusting H to -36 corrected my ambient temperature and now causes a temperature reading of 2000 when thermistor is disconnected and gives the error message - thank you 
Thanks also @appjaws1 - indeed I was using the one piece and the heat sink was blocking the ducts - I have reverted to the modified 2 piece so that my heat sink is in the correct orientation to let a decent amount of air to the ducts. I now realise that the blocked ducts was causing the excessive backwash I was seeing.
Now all is good with the world again
- adjusting H to -36 corrected my ambient temperature and now causes a temperature reading of 2000 when thermistor is disconnected and gives the error message - thank you Thanks also @appjaws1 - indeed I was using the one piece and the heat sink was blocking the ducts - I have reverted to the modified 2 piece so that my heat sink is in the correct orientation to let a decent amount of air to the ducts. I now realise that the blocked ducts was causing the excessive backwash I was seeing.
Now all is good with the world again
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Re: Anyone interested in a modulated IR sensor + fan control + illumination board? March 30, 2014 04:01PM |
With the new modulated IR sensor, has anyone tried without paper squares under the Kapton? I.e. Just reading through the kapton and glass from the heat spreader?
If shiny aluminium is an issue, how about giving the heat spreader a thin coat of matt white primer spray?
Another RS Ormerod Mk1 meets the world
Retired now but I used to make....
CNC Machined Mk1 aluminium bed support plates for the Ormerod
CNC machined X-plates and ribs for Mk1 & Mk2 Ormerods
CNC machined bed support arms for the Mk2 Ormerod.
Dual Hot-End heatsink blocks.
If shiny aluminium is an issue, how about giving the heat spreader a thin coat of matt white primer spray?
Another RS Ormerod Mk1 meets the world
Retired now but I used to make....
CNC Machined Mk1 aluminium bed support plates for the Ormerod
CNC machined X-plates and ribs for Mk1 & Mk2 Ormerods
CNC machined bed support arms for the Mk2 Ormerod.
Dual Hot-End heatsink blocks.
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