Make Collimation Easier - Secondary adjusters

[SeedyF]

There are a few threads dotted around the forum about Bobs Knobs and a couple of others about cheaper alternatives. I just thought it was worth putting something in here.

Bobs knobs Home are raved about and most people give glowing recommendations for his products and services. But the secondary collimation thumb screws for the skywatcher newtonians/dobs are $21 SkyWatcher Dob.

There is an alternative, and I have just added them to my Skywatcher 250px Flextube and at a much more palatable cost of £6.76 including delivery. WDS 8168 Thumb Screw, Plastic Hand Knobs - WDS

The 8168-227 screws are 25mm and I needed to add a large 25mm diameter washer between the secondary and the holder attached to the spider veins. But it all works perfectly

And here they are in place. No more fiddling with tiny allen keys for me.

[Merlin66]

Neat solution!

[Tinker1947]

Worth doing, i'm thinking..