18 replies to this topic

[aux]

It's been roughly 2 years since I started working on this project,

I think its time to make a lighter, better, faster, stronger version

 

https://www.printabl...zar-bino-hadley

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Edited by aux, 23 January 2025 - 07:22 PM.

[eroyer]

Great work !

It seems you have used 114mm f/8 primary mirrors which can be found easily. How large are the secondary mirrors ?

[aux]

Great work !

It seems you have used 114mm f/8 primary mirrors which can be found easily. How large are the secondary mirrors ?

Thanks! and that would be correct!

 

this one is using a 24 mm (across the minor axis) by 36 mm (across the major axis) diagonal secondary mirror on each side

Edited by aux, 25 January 2025 - 10:57 AM.

[Ice Cube]

how the merging accomplished on this?

looks like 3 mirrors + 1 1.25" diagonal on each OTA?

[petertinkerer]

Aux,

 

Impressive amount of 3D printing!   Since you mentioned you were considering redesigning your 114mm F8 binoscope to reduce weight and complexity perhaps the designs shown here might give you some ideas.  The 6 inch F5 version only weighs 5Kg.  The 114mm F8 weighs a bit more at 7Kg since the IPD is fully adjustable while viewing.  Both Binoscopes have easy manual image merging while viewing.  The full details can be found at petertinkerer.com

 

Peter

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[aux]

how the merging accomplished on this?

looks like 3 mirrors + 1 1.25" diagonal on each OTA?

just the regular primary and secondary for a newtonian, then two 1.25" 90° diagonals on each

[aux]

Aux,

 

Impressive amount of 3D printing!   Since you mentioned you were considering redesigning your 114mm F8 binoscope to reduce weight and complexity perhaps the designs shown here might give you some ideas.  The 6 inch F5 version only weighs 5Kg.  The 114mm F8 weighs a bit more at 7Kg since the IPD is fully adjustable while viewing.  Both Binoscopes have easy manual image merging while viewing.  The full details can be found at petertinkerer.com

 

Peter

Hello Peter!

 

I must say, I frequented your site quite often when coming up with the initial plans for my own binoscope build, I consider it an accomplishment to get this kind of response from you! I am very interested in and much appreciate your recent video and files of the 3D printed EMS as well!

 

 

My earliest initial plans were very similar to yours,

 

 

although I tried several configurations.

 

 

Ultimately, I became most fond of this geometry, however, most of the design language I ended up using was to make it compatible with a majority of 3D printed accessories for the Hadley, and I made a design choice to follow the aesthetic of the that DIY OTA to pay homage to its creator, Maff.

 

Many Regards!

-Aux

Edited by aux, 26 January 2025 - 01:22 PM.

[aux]

here is a much more current photo

 

[Jawaid I. Abbasi]

Here you go:

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[Ice Cube]

Here you go:

there's only 1 (one) mirror per OTA in that setup

[Jawaid I. Abbasi]

Yes.... Only one mirror and front objective lens per OTA and one is fun to use it.

[aux]

Here you go:

I can certainly appreciate a compact design, and I would be very interested in Robert's further developments, 

not to sound over critical, but from one designer to another:

 

it seems to me like the OTA's have no true reason to be asymmetric, aside from the change in center of gravity,

the overall footprint could be reduced if the light paths intersected, or the OTA's kept symmetric.

 

this first attempt of mine was approaching binoscopes from a budget oriented perspective,

I believe the total cost of the Alcor & Myzar build project was somewhere under $380

 

I do truly love the 3D printed components, modularity, and upgradable options,

but alas, my heart lies with reflectors

[Jawaid I. Abbasi]

it seems to me like the OTA's have no true reason to be asymmetric, aside from the change in center of gravity,

the overall footprint could be reduced if the light paths intersected, or the OTA's kept symmetric.

 

please elaborate the above.

[aux]

please elaborate the above.

using the image on the right that you attached to establish the coordinate frame:

 

 

there are several possible configurations of the light paths for a binoscope design,

the footprint of this particular design could be reduced by half along the y-axis,

 

an example of a design that achieves this concept, while still keeping the light paths from intersecting, can be seen earlier in the thread [#7]

 

there are other potential configurations that would reduce the overall footprint of this bino set up as well

[psionik]

You've got a rifle scope on there.  Did you consider naming it "Starblaster" ??

[Ice Cube]

 

it seems to me like the OTA's have no true reason to be asymmetric, aside from the change in center of gravity,

the overall footprint could be reduced if the light paths intersected, or the OTA's kept symmetric.

 

i think the asymmetrical/independent OTA's address the binocular merging by being able to move a single whole OTA in the Y direction.

 

having lightpaths that criss-cross to gain symmetric requires a totally different approach on how to merge the views.

 

it's all about design choices and priorities 

 

that's why i asked earlier how binocular merging was performed 

lot's of possible choices with different trade-offs

[aux]

i think the asymmetrical/independent OTA's address the binocular merging by being able to move a single whole OTA in the Y direction.

 

having lightpaths that criss-cross to gain symmetric requires a totally different approach on how to merge the views.

 

it's all about design choices and priorities 

 

that's why i asked earlier how binocular merging was performed 

lot's of possible choices with different trade-offs

precisely, I can only really speculate towards the reasoning behind this configuration,

 

regarding the merging question from earlier, merging and adjustments to the IDP are controlled via rotation of, what I have been referring to as, the Budget EMS

Edited by aux, 28 January 2025 - 02:29 PM.

[starspangled]

Here you go:

That is the 3D printed Analog Sky `Heart '  80mm binocular .

 

https://www.analogsky.co/heart

[Jawaid I. Abbasi]

That is the 3D printed Analog Sky `Heart '  80mm binocular .

 

https://www.analogsky.co/heart

Yes it is the AnalogSky. See my reviews on it
https://www.cloudyni...1871-analogsky/