which servos do you use? and which gear?
Hi,
obviously servos with 360° rotation are verrry expensive and probably you can control a normal gauge in a B737-800 with a normal servo and the correct gear, but where do you buy this gear? or do you have different approaches to this problem?
All the best, Marc
Re: which servos do you use? and which gear?
Marc
Here is a link to building a brake pressure gauge using a servo
http://www.737ng.co.uk/djb/brake_pressure_gauge.pdf
The gears can be obtained here or just do a search on the web
http://www.technobotsonline.com/inde...ategory_id=189
David
Re: which servos do you use? and which gear?
thank you very much! can you tell me how many degrees the hitec hs55 can turn? so that I can buy the adequate gears...
Marc
Re: which servos do you use? and which gear?
Servocity.com they have everything you need to get full movement
Re: which servos do you use? and which gear?
Marc
From memory (not to be trusted!!) the servo moves around 180deg when used on opencockpits boards. When making the pressure gauge I think I used a 2:1 gear ratio. It is always better to have some movement to spare, especially as these servos get a bit jittery when approaching the full extent of their movement. Of course, the greater the gear ratio then the more chance of the needle appearing jittery. Try it and see
David
Re: which servos do you use? and which gear?
hi, I can't find the right gears on servocity.com could you give me a direct link?
Re: which servos do you use? and which gear?
Hmm 360 deg servos very expencive?
I would not say. as found today on ebay for prices 5-9 $
Even purchassed one to play arround with
regards
Joseph
Re: which servos do you use? and which gear?
Quote:
Originally Posted by
yoss
Hmm 360 deg servos very expencive?
I would not say. as found today on ebay for prices 5-9 $
Even purchassed one to play arround with
regards
Joseph
http://www.ebay.co.uk/sch/i.html?_fr...sacat=See-All-
just found these becuse ot your tip thanks
Re: which servos do you use? and which gear?
Re: which servos do you use? and which gear?
You need 48P or better for smooth operation. Beware of cheap servo's!!! They don't center the same or go to the same spot every time. You get what you pay for, cheap servo, inaccurate gauge movement/positioning. You don't need a 360deg or 180deg for that matter.
http://servocity.com/html/48_pitch_p...ore_gears.html
http://servocity.com/html/48_pitch_p...nion_gear.html
http://servocity.com/html/pinion_gears.html
http://servocity.com/html/servo_mount_gears.html
Rob