The Warthog Posted November 7, 2006 Share Posted November 7, 2006 I often hear the term 'backlash' with reference to focusers, and (I think) slow motion cables. What is it, exactly? It may be something I haven't noticed, or have just gotten used to, but I'd hate to be missing out on anything. Link to comment Share on other sites More sharing options...
Kaptain Klevtsov Posted November 7, 2006 Share Posted November 7, 2006 Backlash is where the drive changes direction and nothing happens until all the slack is taken up. An example is where you have a rack and pinion focuser. The pinion isn't touching the rack on both sides of the gear tooth (cog) so you have to move it a bit before anything happens every time you change direction.HTHCaptain Chaos Link to comment Share on other sites More sharing options...
Astroman Posted November 7, 2006 Share Posted November 7, 2006 Another term for it is hysteresis. Link to comment Share on other sites More sharing options...
Ambermile Posted November 7, 2006 Share Posted November 7, 2006 My cousin had one of those. Took ages to get her off the ceiling... Link to comment Share on other sites More sharing options...
Astroman Posted November 7, 2006 Share Posted November 7, 2006 Well, they're easily controlled with baking soda around the baseboards, Ambermile. Link to comment Share on other sites More sharing options...
Ambermile Posted November 7, 2006 Share Posted November 7, 2006 I'm not so sure. We tried that. Well, nearly. We used Andrews liver salts 'cos we had no baking soda. She said the bottom was falling out of her world...Anyway. After the gallon of Andrews the world fell out of... whatever, you get the idea. Backlash you see Arthur Link to comment Share on other sites More sharing options...
Astroman Posted November 7, 2006 Share Posted November 7, 2006 Link to comment Share on other sites More sharing options...
The Warthog Posted November 7, 2006 Author Share Posted November 7, 2006 Backlash is where the drive changes direction and nothing happens until all the slack is taken up. An example is where you have a rack and pinion focuser. The pinion isn't touching the rack on both sides of the gear tooth (cog) so you have to move it a bit before anything happens every time you change direction.HTHCaptain ChaosOK. I have experienced that, but never really thought of it as anything but 'how the thing works.' I can't even say if I'm experiencing it with my present focuser or mount.Thanks, eh? Link to comment Share on other sites More sharing options...
The Warthog Posted November 7, 2006 Author Share Posted November 7, 2006 Another term for it is hysteresis.Do you fix it by giving it a hysterectomy? Link to comment Share on other sites More sharing options...
Ambermile Posted November 7, 2006 Share Posted November 7, 2006 You could just laugh at it WH...Arthur Link to comment Share on other sites More sharing options...
radioactive Posted November 7, 2006 Share Posted November 7, 2006 You could just laugh at it WH...ArthurI basically agree with that statement although I have had several backlashes off Mrs Radio in the past but they don't hurt too much! Link to comment Share on other sites More sharing options...
Astroman Posted November 7, 2006 Share Posted November 7, 2006 Another term for it is hysteresis.Do you fix it by giving it a hysterectomy?Nope. An Allen wrench. Jeez.... Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now