Telescope Reviews: My very late 14 inch f/5 project...

· Get a Cloudy Nights T-Shirt

· Submit a Review / Article

Click here if you are having trouble logging into the forums

Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu… uh, User

You are not logged in. [Login]

Entrance · Main Index · Search · New user · Who's Online
FAQ · Calendar

Equipment Discussions >> ATM, Optics and DIY Forum

Pages: << 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | (show all)

Benach
Pooh-Bah

Reged: 01/24/08

Re: My very late 14 inch f/5 project... new

[Re: Olivier Biot]
#4874249 - 10/22/11 11:40 AM

Olivier: the safest position is on the rockerbox. Will remain positioned roughly the same therefore your eyepieces cannot fall out of it.

Post Extras:

Olivier Biot
Amused

Reged: 04/25/05

Loc: 51°N (Belgium)

Re: My very late 14 inch f/5 project... new

[Re: Benach]
#5720385 - 03/08/13 12:02 PM

It's been a while since I last posted an update on this thread.

Due to time constraints and bad weather I didn't have the luck yet to thoroughly test my scope.

However today I went to a Fab Lab, thanks to a colleague at work, and bit the bullet to have the filter wheel printed in black ABS. The current plexiglas version of the filter wheel is too heavy and isn't working due to some manufacturing issues and balance (it's heavy!).

In principle the filter wheel MkII should be ready somewhere next week.

Post Extras:

droid
rocketman

Reged: 08/29/04

Loc: Conneaut, Ohio

Re: My very late 14 inch f/5 project... new

[Re: Olivier Biot]
#5720394 - 03/08/13 12:08 PM

awesome project, love the eye piece board.

Post Extras:

Olivier Biot
Amused

Reged: 04/25/05

Loc: 51°N (Belgium)

Re: My very late 14 inch f/5 project... new

[Re: droid]
#5732689 - 03/14/13 06:28 PM Attachment (10 downloads)

The 3D print job was a success!

Here's a view of the filter wheel without filters.

Post Extras:

Olivier Biot
Amused

Reged: 04/25/05

Loc: 51°N (Belgium)

Re: My very late 14 inch f/5 project... new

[Re: Olivier Biot]
#5732692 - 03/14/13 06:30 PM Attachment (7 downloads)

The recesses in the filter wheel are tight enough to allow pressing the filters in the wheel without requiring extra hardware to keep them in place.

Here's a view with 3 filters installed.

Post Extras:

Olivier Biot
Amused

Reged: 04/25/05

Loc: 51°N (Belgium)

Re: My very late 14 inch f/5 project... new

[Re: Olivier Biot]
#5732693 - 03/14/13 06:30 PM Attachment (3 downloads)

The other side.

Post Extras:

Olivier Biot
Amused

Reged: 04/25/05

Loc: 51°N (Belgium)

Re: My very late 14 inch f/5 project... new

[Re: Olivier Biot]
#5732698 - 03/14/13 06:33 PM Attachment (3 downloads)

The rim of the filter wheel contains an alignment groove and has recesses to keep track of the filter positions.

Post Extras:

Olivier Biot
Amused

Reged: 04/25/05

Loc: 51°N (Belgium)

Re: My very late 14 inch f/5 project... new

[Re: Olivier Biot]
#5732699 - 03/14/13 06:34 PM Attachment (9 downloads)

Another view, here you'll see the difference between a filter hole and the no-filter hole (next to my thumb.

Post Extras:

Chriske
Kijkerbouw Urania

Reged: 08/15/04

Loc: Boechout, Belgium

Re: My very late 14 inch f/5 project... new

[Re: Olivier Biot]
#5738013 - 03/17/13 04:41 AM

Quote:

The recesses in the filter wheel are tight enough to allow pressing the filters in the wheel without requiring extra hardware to keep them in place.

Here's a view with 3 filters installed.

It would be better to have a loose fit and glue them into place. Tension is you biggest enemy...!

Post Extras:

Olivier Biot
Amused

Reged: 04/25/05

Loc: 51°N (Belgium)

Re: My very late 14 inch f/5 project... new

[Re: Chriske]
#5738078 - 03/17/13 06:47 AM

Quote:

Quote:

The recesses in the filter wheel are tight enough to allow pressing the filters in the wheel without requiring extra hardware to keep them in place.

Here's a view with 3 filters installed.

It would be better to have a loose fit and glue them into place. Tension is you biggest enemy...!

You're right, Chris. Luckily the filter holders have some room (I hear the filters "rattling" when I move them).

Gluing could be done with some hot glue.

I should have foreseen holes for tiny setscrews

I hope to find some time now to tweak the 3D printed filter wheel... it's cloudy and rainy anyway

Post Extras:

Pages: << 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | (show all)

Extra information

13 registered and 26 anonymous users are browsing this forum.

Moderator: ausastronomer, richard7

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Thread views: 31412

Jump to

CN Forums

Home

Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics