Register

If this is your first visit, please click the Sign Up now button to begin the process of creating your account so you can begin posting on our forums! The Sign Up process will only take up about a minute of two of your time.

Results 1 to 6 of 6

  1. #1

    Join Date
    Oct 2002
    Location
    Fremont, NE
    Posts
    483
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    Dymond r/c linear spindle drive servo

    I am pondering purchasing a couple of Dymonds 1.5 gram linear servos. Has anyone used these before? They would work great in our small warbirds. Would love to hear from anyone who has used these.
    Steve Westphal

  2. #2
    MJD's Avatar
    Join Date
    May 2003
    Location
    Orangeville, ON, CANADA
    Posts
    6,833
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback
    I'd like to hear from someone with experience with them also. I've been fondling and admiring the servos on my Vapor and Mini-vapor, and while they are tiny and cute, they also have a fair bit of backlash and I just am not convinced - yet - they're up to a glow engine. So far I might be brave enough to try some HS35HB's on an .010/.020 model without 3D control surfaces. But heck, maybe a science experiment is in order.
    Sorry I'm late dear, I had to help my uncle Jack off his horse.

    Revver Bro #231

  3. #3

    Join Date
    Oct 2002
    Location
    Fremont, NE
    Posts
    483
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback
    I would try a couple if I could find a review on them. Sure are tiny.
    Steve Westphal

  4. #4
    Mr Cox's Avatar
    Join Date
    Jul 2007
    Location
    Karlstad, SWEDEN
    Posts
    3,276
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback
    The weight of the servos is a very small contribution to the total weight, as I see it. There isn't much gain in going from 2-3 servos of 2.5-3.5gram each, to the linear ones.

    The lightest (glow powered) planes I have will end-up around 100-120g, mainly dependent on the of choice engine and RX battery. Saving 5grams (?) and risking failure is not a good idea...

  5. #5
    MJD's Avatar
    Join Date
    May 2003
    Location
    Orangeville, ON, CANADA
    Posts
    6,833
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback
    I'm even hesitant about the HS-35's, but I think they may be good candidates for .010 - .020 stuff. I think I may build something cheap, expendable and sorta sporty with a Sure Start (with modestly sized free moving surfaces) and try them in that - for the purpose of a stress test. They tout the fact they have metal-Karbonite gears, but it doesn't matter what they're made of if they're too tiny for the job..
    Sorry I'm late dear, I had to help my uncle Jack off his horse.

    Revver Bro #231

  6. #6

    Join Date
    Apr 2005
    Location
    Halifax, NS, CANADA
    Posts
    136
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback
    I have seldom found the gears are the point of failure. I have carefully tested alll the servos that have failed me in 049 use. Each time the motor was the failure. Each time it was a motor winding wire that broke between the commutator and the coil windings. This wire, if pulled too tight and soldered during assembly, will vibrate, harden, and break. If one was truly concerned one would open the motor and carefully encapsulate that area with epoxy or hot glue and reassemble before use. That is a lot of work. So I went with HS81 or HS82, in hopes that the wires were a bit heavier and would last longer. I also take pains to mount using rubber grommets. Don't screw them down so tight the rubber looses all flex. Balance the prop carefully.


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT -6. The time now is 02:47 PM.

SEO by vBSEO 3.6.1 ©2011, Crawlability, Inc.