DC42 Mini height sensor board support for e3d v6

by simon0362, published

DC42 Mini height sensor board support for e3d v6 by simon0362 May 19, 2016
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This allows DC42's (David Crocker) IR height sensor board to be attached to an E3D v6 hot end sandwiching the new support between the E3D shroud and the 30mm fan supplied by them.
Available in OnShape at: https://cad.onshape.com/documents/5f57ce2757134470f827174b/w/72fc898f0f948db66966b8fe/e/1fff43614fd32072253c43d0

(note the photos show the orientation of the fan shroud to ensure the board sits above the nozzle - cannot persuade the photos to be in the correct sense - sorry!)

**UPDATE 6 Nov 2017****

I now have the new E3D v6 thermistor holder which means the height sensor is now a very close fit to the holder. I have made a change to the design to increase the distance between the board and the new holder. Again, the original is available on Onshape in the same main file (look for the new tab).

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ABS since its close to the hot end

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Just a heads up, this may not be as compatible with the new v6 heater blocks, because of the barrel style thermistor. The heater block is larger causing the heater block to actually touch the screw heads on the mount. I am going to edit the STL and trim down the mount to move it a bit further from the nozzle. Unfortunately that means there will a be a chance for some more error. Hopefully not too much, I am going to try trimming 2.5mm off and see how it goes! I'll do my best to report back.

I now have one of the newer heater blocks and I have trimmed 3.5mm from the original height to adapt to the new version - see the revised .stl

would it not be more simple to screw it on the fan instead and use all 4 screws and not just the 2 of them (as shown in pics)

that is what i plan for mid next week

Two screws are perfectly adequate, there are no structural issues here. Also, this is a delta printer and the aim is to reduce the weight at the head to a minimum - and 2 unnecessary screws helps reduce weight - or at least, probably compensate in part for the board and support weight.

for detla's i agree

board mounted and the only issue i had is that half of housing for the connector could not be there

my fix was to bend the connector pins on the board toward the center of board

any advancements on this? I just printed / installed w/o reading this comment first haha.. .same issue..

If you've got the file already done, l'll give it a print :D

Yup, just revised it. Let me know if it helps.

What is the X/Y probe offset from extruder with this mount?

measured from my setup - roughly 12mm in one plane (from the nozzle towards the fan) and effectively zero in the other plane because DC42's board sensor lies on the centre line.
Hope that helps

Mine is not super-tight but shows no inclination to move during printing. One thing I keep meaning to do is to put a piece of Kapton tape across the back of the board so that if the fan shroud does twist, then the board is at no risk of shorting onto the aluminium body of the E3d

Printed it, and mounted the DC42 sensor onto my new delta machine. The fit of the fan collar is a bit loose, so I may have to figure out a way to more permanently connect the fan shroud onto the e3d v6 extruder fan fins.

Printed this and tried to mount... it made the IR sensor closer to the bed than the nozzle of the hot end... sorry, but this just doesn't work for me...

Sorry to hear that - I have uploaded some photos showing my own version and how it mounts - and you can see how it is above the nozzle.
I wonder if you have the fan shroud the other way up to mine - as I understand their instructions, the top of the shroud is the part that slightly masks the fan assembly. I think the support would place the board and sensor below the nozzle in this case.
If the photos don't clarify, PM me and lets work out the issue - maybe the fan shroud has been changed.....

you got it right... but using all 4 screws for the fan might make it more solid :-D

also the new blocks are bigger to make room for the barrel type thermistor so the board needs to move away from the nozzle or it will short

mounting the bracket on the fan instead of between fan and shroud might do the trick thou

for those that want to experiment you might want to upload the source file

Thanks for the quick reply! I actually got it.. part of my carriage was hanging down just enough to make it maybe a single mm lower than normal.. I had tried flipping the fan shroud around and other things, do I'm glad I finally got it.. I'll post pics later.

Thanks again!!