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GuyMcCaldin

Omnimac 3DR Pitot Tube Mount v1.5

by GuyMcCaldin Oct 21, 2013
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Would you be able to post the CAD files? I would like to make some mods to fit my airspeed sensor.

How does this mount to the aircraft?
Do you simply cut a hole and glue in place?

Thanks

Warren

Hi Warren,

Yeah, that's pretty much it. I put together some basic instructions on how to mount it in this blog post:

http://diydrones.com/profiles/blogs/3d-printed-pitot-tube-mount-gps-mount-and-9xr-tablet-mount

Let me know how it works out for you, or if you have any other questions.

Cheers,

Guy

Perfect, thanks so much Guy!

nicely done !! I'm trying to fit a HK Pitot tube but it has a larger base compared to the 3DR so some adaptation would be required unfortunately. Any chance you could post the drawings / or adapt the model to support those "far east" pitot versions? I would be able to send you a 3D model of the tube for easy fitting.

Hi apnolan, unfortunately it seems that this is a bit of a difficult part to print depending on your printer. I'm working on simplifying it, but have had a severe shortage of time recently, which is why progress has stalled.
I have consistent results on an UP Mini by printing in ABS with 200um layer height and printing the nose section with supports. The trick is to print the part with the 45° seams flat on the print bed. This is what the arrangement looks like in the Up software: http://api.ning.com/files/4MXCALxsrL0agB3hB06k9fTeA9B8zf203OC4jYqFeowmeXNQyV36fvo9P6IwdZGFp6dFy9*4EzQTpCRyhs45ORPNTvGHA0LA/ScreenShot20140417at3.52.09pm.pnghttp://api.ning.com/files/4MXC...

Hello, I think the easiest solution would be if Guy would be kind enough to release the CAD file. Then you can split the pitot tube holder in half.

(imagine it standing vertical, and you slice it right up the center. These two halves could be pressed and glued together.) It would make it easier to print and install.

Hi Jwmflying,

What CAD software do you use? The original was done in Rhino 3D, but I might be able to export it to a more commonly used file type. Otherwise, I can implement the changes you've suggested, and post the STL files.

How do you recommend printing the pitot_tube_holder? I tried printing the pitot_tube_holder v1.2 as it appears in the image and it failed when it got to the overhang where the cap section attaches. Do you have any instructions for printing v1.9?