1. My motorised focuser for Astromaster 130 (saved in case of site error)

    by , 11-07-2019 at 06:14 PM
    Quote Originally Posted by MarcinM View Post
    Hi there,

    After almost 10 years gap returned to hobby. I bought Celestron Astromaster 130, but after couple uses I decided it needs motorised focuser. It was really annoying when I tried to set focus and everything was shaking, vibrating etc from the slightest touch. So here it is, few words about it first.
    Initially I though about using two servos connected together, without batteries, but then stepper motor idea shown up. Had to design few parts using tinkercad (my first
  2. Non-Standard Visual Filters for Planetary Observing with Small Aperture Telescopes

    by , 05-11-2018 at 05:05 PM
    Quote Originally Posted by Gabby76 View Post
    An article on different filters that some may find interesting or helpful
    Attached Thumbnails Attached Files
  3. How to attach the SLT pier to a CG-5 style tripod

    by , 11-27-2016 at 03:40 AM
    So this is what happens when I get bored, I start looking at different ways to get more out of the gear I have handy.
    So I have come up with one last adaptation of the SLT pier mounting.
    Attaching it to a CG-5 style tripod, which it turns out is very simple.

    Materials required:
    1- ¼” x 20 TPI redi-rod
    2- ¼” x 1” wingnuts
    2- ¼” x 1” washers
    A hacksaw or angle grinder to cut the redi-rod

    Start by removing the 3/8” tripod center ...
  4. Making a pier for the SLT mount

    by , 11-26-2016 at 01:26 AM
    Materials required:

    This pier has been made out of 5” Schedule 20 electrical conduit.
    1 sq. foot of 3/8” or ½” plywood
    File or sanding block
    Compass/ pencil
    Wood glue
    5/16” drill bit
    1 piece of ¼” x 20 TPI redi-rod
    1- ¼” wing nut or nylock
    1- ¼” x 1” flat washer

    I used Schedule 20 which has an inside diameter of 127mm (5”) and an outside diameter of 5-¼”. ...
  5. Improving an aluminium tripod

    by , 11-16-2016 at 11:51 PM

    The aluminium tripods that come with a majority of beginner and mid-range scopes have had a bad name for years as being poorly made, sloppy and people have tried various ways to make them sturdier such as filling the legs with sand, lead shot, or even expanding foam.
    I just read an account the other day of where a person was fitting steel rebar into the legs to see if it will help… ...
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	SLT tripod.jpg 
Views:	425 
Size:	138.0 KB 
ID:	145591   Click image for larger version. 

Name:	Pic1.jpg 
Views:	432 
Size:	76.0 KB 
ID:	145593   Click image for larger version. 

Name:	Pic2.jpg 
Views:	440 
Size:	108.0 KB 
ID:	145594   Click image for larger version. 

Name:	Pic3.jpg 
Views:	457 
Size:	122.7 KB 
ID:	145595   Click image for larger version. 

Name:	Pic4.jpg 
Views:	450 
Size:	75.8 KB 
ID:	145596  

Powered by vBulletin® Version 4.2.0
Powered by vBulletin®
All times are GMT. The time now is 12:37 PM.