supply merlin, Deltawave BT-module and T&C controller with 14,8 volts?  

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Undertable
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supply merlin, Deltawave BT-module and T&C controller with 14,8 volts?

by Undertable » Sun Sep 04, 2011 7:10 pm

Hi community

im reflecting about an other power supply for the merlin head.
In addition also to Claude`s Deltawave BT-module and the T&C controller.
What do You think about the risk of damage?

If the 2,8 volts more will cause no trouble I would like to combine two Canon BP-511A (Ansmann A-Can Bp511) rechargeable batteries,
each 7.4V 1400mAh

I have those rechargeable batteries and charger in use for the EOS 50D camera.

Are there some experiences (speed, number of pics)

regards, Oliver
Last edited by Undertable on Sun Sep 04, 2011 7:13 pm, edited 1 time in total.

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by claudevh » Mon Sep 05, 2011 7:34 am

Hello Oliver,

14,8 volts is not a problem nor for the BT module, nor for the Merlin nor for the T&C controler.
Just pay attention:
- not to invert polarity
AND
- remove all batteries inside the Merlin !!!

Running with 14,8 volts will slightly increase the speed of the Merlin !
:cool: Claude :cool:
Merlin + Papywizard on Windows 7 & Nokia 770 § N810 & Acer (Netbook) + PanoramaApp Androïd + Deltawave PapyMerlin BT + Autopano
Spherical Pano (180 x 360) with Canon 40D + Canon EF-S 10-22mm f/3.5-4.5 Zoom & Pôle Pano with Canon 5D MK2 and shaved Tokina 10-17 3.5-4.5 AF DX Fisheye
Gigapixel photography with Nikon D200 + Sigma 70-200 F 2.8 EX DG APO HSM

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by Undertable » Tue Sep 06, 2011 5:48 am

That`s what I wanted to hear ;-)

Thank You

Oliver

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by Undertable » Sat Oct 29, 2011 7:28 am

Hello Claude,
today I connected 2 of these batteries in series. To my surprise I measured no 14.8V but rather 16.8V.
Is this also OK for T&C control and You`r BT-module? Anyway this are 4,8V more than usual

BTW: I used this cheap charger with this charging cradle and Ansmann A-Can BP511 batteries (instead of the original Canon BP-511A)


Last edited by Undertable on Sat Oct 29, 2011 7:43 am, edited 1 time in total.

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by claudevh » Sat Oct 29, 2011 5:23 pm

Hello Oliver,

Nice to have news from you ... :)

If I can permit myselve, your multimeter is very optimistic .... ;)

You are using 2 batteries of 7.4 V = 14,8 V ...
Those are LiPo batteries and can't deliver more except during a few second just after full charge ...

So there is really no problems !

But be serious :cool:

Your Merlin modification for reducing the foot print (nadir) and increase the flexibility for the NPP is "beautyfull !!!

Could-you show us more pictures ?

Do-you sell it ???

Can't wait !!!
:cool: Claude :cool:
Merlin + Papywizard on Windows 7 & Nokia 770 § N810 & Acer (Netbook) + PanoramaApp Androïd + Deltawave PapyMerlin BT + Autopano
Spherical Pano (180 x 360) with Canon 40D + Canon EF-S 10-22mm f/3.5-4.5 Zoom & Pôle Pano with Canon 5D MK2 and shaved Tokina 10-17 3.5-4.5 AF DX Fisheye
Gigapixel photography with Nikon D200 + Sigma 70-200 F 2.8 EX DG APO HSM

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by Undertable » Sat Oct 29, 2011 6:32 pm

Hello Claude,
claudevh wrote:Your Merlin modification for reducing the foot print (nadir) and increase the flexibility for the NPP is "beautyfull !!!

Thank You, I`m glad to hear that :-)
claudevh wrote:Could-you show us more pictures ?

Please have a closer look on the 3 pics below but please be aware that it`s not ready yet.
Some parts are still too big and too heavy and I don`t know if it will work as I expect
claudevh wrote:Do-you sell it ???

Sorry, no. There is only one exemplar and It took a lot of time to make it.






Last edited by Undertable on Sat Oct 29, 2011 6:49 pm, edited 1 time in total.

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by fma38 » Mon Oct 31, 2011 8:42 am

It was a Merlin??!!!?? Nice!
Frédéric

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by Undertable » Wed Dec 28, 2011 3:27 pm

summary after experimental stage finished:
Undertable wrote:...an other power supply for the merlin head...two Canon BP-511A (Ansmann A-Can Bp511) rechargeable batteries,
each 7.4V 1400mAh...In addition also to Claude`s Deltawave BT-module and the T&C controller...risk of damage?

- Merlin head and TC control: are still working fine with 14.8V (without additional protection)
- Deltawave BT-module: is still working fine with 8V, downscaled by another voltage regulator (LM7808) with additional cooling (thank You Vincèn)
- Wireless trigger YONGNUO RF-602TX: also still working fine with 3V provided from this regulator circuit (thank You Daniel)

Undertable wrote:Are there some experiences (speed, number of pics)

Especially controlled by the TC-handheld the panohead moves noticeably faster.
Endurance test 360° spherical panos, controlled by TC, 2 brandnew fully charged Ansmann A-Can BP511: 3466 shots until standstill.
With EOS400D+EF50 this are 16 panoramas (each 205 shots)

claudevh wrote:Could-you show us more pictures ?

There is an album on my flickr account now which contains more pictures. Please press "L" to view specific ones on black or browse them here on black

Oliver
Last edited by Undertable on Wed Dec 28, 2011 4:53 pm, edited 1 time in total.

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by fma38 » Thu Dec 29, 2011 9:34 am

Really amazing!!!

This make me think that a nice way to modify the Merlin would be to make a modular axis, using the same design for both yaw/pitch...
Frédéric

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by Undertable » Thu Dec 29, 2011 12:23 pm

fma38 wrote:modular axis, using the same design for both yaw/pitch...

It was my intention to do so because multiple usage of same parts means less effort.
Partially I have managed that (same drive- and bearing covers, specific dimensions of drive`s base plates) but please be aware that I´ve designed this device without CAD, simply by the use of caliper, pen and notepaper.
Concerning this matter particularly adjustability was a challenge:

Y-adjustment (different cameras)
- had to be implemented across to the lower drive`s base plate
- more adjustment track than X
- hinged mechanism for storage had to be integrated

X-adjustment (offset/axis alignment)
- had to be implemented lengthwise to the upper drive`s base plate.
- less adjustment track, compensate fabrication tolerances
- defined plus minus10mm

Z-adjustment (different lenses + size of the footprint)
- dimensional big enough for bigger lenses and small footprint
- limited by length of the used rail
- defined dimension without adjustability (not necessary)

Oliver
Last edited by Undertable on Thu Dec 29, 2011 5:37 pm, edited 1 time in total.


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