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3D Printable VESA mount for DHO800/DHO900 Scopes
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jsobell:
I wanted a lift-on/off attachment for my scope so I could use it on a cheap monitor arm.
This model lets the fan work, but allows you to remove the scope at any time, and adds very little to the scope itself.

The model is at https://www.printables.com/model/774496-lift-off-mount-for-vesa-monitor-stands

If you want to copy the design and improve it, feel free, but please let me know so I can also take advantages of any improvements :)
The source for the design is at https://cad.onshape.com/documents/3dc09744985afc9c56ff1af3/w/545eed0f625f9c776cd36fb7/e/d3e087d720a9671194901847?renderMode=0&uiState=65d5c0a5fe91e352df005e0e
Apologies for the sub-optimal Onshape design skills. I'm slowly improving.






ebastler:
Wouldn't it be quicker to make, and better for the airflow, to just have screws with spacer bushings in the four corners? Two countersunk screws in the bottom, and two protruding panhead screws on top, similar to what you have now, but without the connecting plate.

You could still 3D-print the spacers, but they would be small parts. Or does the large perforated plate add functionality I am overlooking?
jsobell:
Yes, I thought the same thing, but not all VESA mounts are the same, so I created a flat plate to give rigidity to the mount when the unit is hanging on it. Some have pretty thin 'X' shapes, and given that the bottom holes are not bolted I thought it better to spread the weight over the whole mount.
If you have a simple post you get lateral force so the top pillars have to be reasonable wide, but the bottom ones would simply be pressing back.
The mount only adds 6mm to the depth (or reduces the fan space by 6mm if you like), so I figured it was acceptable.
Perhaps a boundary only, rather than a full plate, might work? That would keep everything rigid, require less plastic, and would print quicker :)

The plate itself was adapted from one I created with internally embedded Neodymium magnets, as I was considering using the plate as a magnetic mount for a battery pack, which I'll test once the one I ordered arrives. This would also have to be kept away from the fan, so a plate will be required for that.
What do you think? I'm very open to ideas and suggestions.
ebastler:
Ok, I see. There is significant torque (lateral force) on the upper two screws. Since the scope enclosure does not have much flat surface area above those mounting points which could provide support, it makes sense to "anchor" the mount via the two screws in the bottom.

Maybe a vertical "bridge" on either side would be sufficient, each connecting the upper and lower mounting point?
jsobell:
Well, I took what you said and applied a few additional ideas.
I added two small protrusions where 75mm VESA holes are usually found, as these stop the scope being able to rotate and give it a little bit more stability.
I made the four posts separate parts to make it easier to print (it halves the print time) and moved the tiny spacers for the front to be separate too so you can print different height ones or replacements.
I definitely prefer this one, and I was thinking of adding some velcro strap points to attach the battery pack when it's not on the bracket.
I'll upload it shortly.

J.

OnShape source:
https://cad.onshape.com/documents/ebda5b0f12b24a3e5b59ee56/w/9b8962caedbdce725c7f94f7/e/1199dcf34f42d247a29dd878

3D Model: https://www.printables.com/model/774496-lift-off-mount-for-vesa-monitor-stands

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