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Old 07-01-2019, 05:48 PM
laurent (Laurent)
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Join Date: Dec 2018
Location: france near paris
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my travel 10 dobson in a laptop bag

hi

sorry for my poor english i m french

i have a disease : a neuropathy and i m in hospital now

before the beginning on my probleme , i make a travel 10 very very compact : it can be travel this full part ( truss tube includes )in a laptog bag ... whith enough place for a standard laptop

i present it only two french star party : RCE in 2014 and RAP in 2016 ( hill in 2015 , sorry )
my presentation of 30 minutes only was here http://laurentastro.unblog.fr/slim-o...-version-fine/
sorry it s all in french

with a friend we will make a youtube complety different where a explain all part whith the why of them
sorry it will be in french too
if some what tanslate in english , i can send the ppt ( when i can go out of my hospital )
i have make no real plan but whith all picture , you can productuted yours

my secret , not visible on picture , in the use of neodymne magnets in the spider , the sesondary and pass-filter

i can answer ( with using google translator ) as you want via a private message with only my phone
for more pictures , wait please when i can go home please ou visit my blog

i can explain how to do to make smaller if someone want to do that
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Old 07-01-2019, 05:51 PM
laurent (Laurent)
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https://i59.servimg.com/u/f59/13/14/32/84/img_7411.jpg

https://i59.servimg.com/u/f59/13/14/32/84/rce-2012.jpg
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Old 07-01-2019, 06:20 PM
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FlashDrive (Col)
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That's great ... very portable indeed ...
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Old 02-03-2019, 08:26 PM
nevfaith (Nev)
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Would be interesting to see how well it handles vibrations. Compact and light, amazing design
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Old 02-03-2019, 09:26 PM
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Ukastronomer (Jeremy)
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I was thinking, the struts are so long and thin I would be very concerned about the vibrations
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Old 03-03-2019, 08:54 AM
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mental4astro (Alexander)
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Get well soon Laurent.

I too make use of flexing thin diameter carbon fibre tubes to form the OTA.

No vibrations. No flex either in the OTA. The trick is in the strain introduced to the poles, they work against each other to provide the necessary rigidity and vibration free.

I can swap between a wee 6mm plossl to a 1kg eyepiece, and collimation holds fast

Vibrations can also be introduced from a poorly designed rocker box. Design the rocker box properly, and no vibrations, no backlash, and the quality of the action is constant and silky smooth.

I haven't gone down the segmented poles route though. I haven't found a connection system that satisfies me. I cannot comment on Laurent's design as I have no experience with his scope, obviously. I would love to hear from you, Laurent about the system you use to join the poles! It is most innovative.

Alex.
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