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GuyMcCaldin

Omnimac 3DR APM Anti Vibration Mount

by GuyMcCaldin Oct 4, 2013
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My apm would not work in altitude hold no matter what vibrations I got rid of, but since I installed this vibration mount it now works! Thanks!!!

Hello!

can you modefy this thing?
i have a Alien X Frame and my hole size are:

46,2 mm (width) x 62,25mm

Hi w3bster, I've uploaded a new version of the bottom plate with the mounting dimensions you've provided. Let me know if this works for the Alien X Frame.

The holes are correct.
but not the Distance of the "Rubber Bumper Holders".
This is 10mm to long in the new version

Hi w3bster, just so I understand correctly, are you saying the bottom plate is 10mm too long to fit into the Alien X frame?

no :)
The Top mount is 10mm to short or the bottom part is 10mm to long :D

Ah, my mistake. I'd forgotten that there are two lengths for the mount based on whether you're using a top entry, or side entry APM configuration. The file posted was for the side entry variant, and it's not going to be possible to modify the existing design of the bottom plate to make it compatible with the top entry variant, as the mounting holes for the Alien X frame overlap where the dampener connect. Adding to the confusion is my poor naming convention, which I admit need a bit of tidying. TE was supposed to stand for 'Top Entry'. If you print the v1.5 top plate, it should fit perfectly. If you're using a top entry variant of APM, it just means the controller won't sit flush with the end of the mount.

Hi GuyMcCaldin,

i will try it today! i give you feedback!

The mounting holes on the V1.6 TE fit my HMF S550 perfectly! I love you!

Thanks wbegg, I'm glad the design worked out for you (sorry about the late reply!)

I noticed that on crashes the soft dampers can't always hold on. Sometimes the top is trown and only the thin servo wires keep it from flying off. Has anyone figured out a way to retain or put limits on the dampers?
I am thinking that maybe a monofilament line threaded through the silicon dampers in a X configuration might allow the dampers to do their work while keeping the system whole in a crash. What do you think?

Something like that could work. I haven't had any crashes with my test platform, so this isn't something I encountered with the original design. Thanks for the feedback, it's something I'll consider improving for future iterations.

Could you post the top and bottom as separate .igs (or maybe Alibre) files? Alibre imports the whole assembly as a single component (top, dampers and bottom)

What is dimension of anti-vibration rubber damper?

9mm diameter, 13mm length. I have a model available for download here:
http://www.thingiverse.com/thing:166875http://www.thingiverse.com/thi...
intensewalkera has also uploaded a silicon mold for you to make your own, here:
http://www.thingiverse.com/thing:190423http://www.thingiverse.com/thi...

M3 9mm x 13mm Dampener
intensewalkera Omnimac Vibration dampening isolator mould - cast - template

How can I open document file? I couldn't open it. The file extension is not ".pdf".

Sorry, my mistake. File has been updated to the PDF version.

Thanks for a model. I just did my maiden flight today and looked at the vigration graphs. They look fantastic thanks to the anti vibration mount. I will use it on all my future multirotors. Ordered a bunch of rubber washers from HK.

Sorry it took so long to print. Thanks! This is great. More of us really need to advertise to you that we have printed and used. It fuels the interest to publish things for others to be appreciated and see it in use. My picture has been uploaded - 12/17/2013.

Been following you on DIY Drones, very nice design. I noticed on the DIY Drones forum some people are having a hard time getting the damper bumpers they could go this route (http://www.thingiverse.com/thing:118365)http://www.thingiverse.com/thi... turbi posted his gimbal damper mold. It could be modified for other size damper's. Also anyone can convert the Stereo Lithography file (STL) files to a SketchUp Model (skp) by using Jim's STL importer found here: http://sketchuptips.blogspot.com/2010/03/sketchup-stl-importer-redo.htmlhttp://sketchuptips.blogspot.c.... I used the STL importer to separate the Omnimac KK mount v1.4 so I could print each one as a separate file in ReplicatorG. Are you going to upload the Omnimac KK mount v1.4 to Thingiverse?

Great design work, I'll be following your posts here, thanks for uploading.

Gimbal Damper mold
by turbi