Securing servo mounts under layout to plywood

videobruce Dec 26, 2021

  1. videobruce

    videobruce TrainBoard Member

    327
    8
    14
    Details;
    N scale, Peco electrofrog turnouts (around 57 yard & main), Motrak servo mounts, SG90 type servos, 3/8" plywood, 1/2 foam board, cork roadbed. Holes drilled under the throw rods, but they maybe too small and all are not 'dead center'.

    The only two ways I can think of are screws or hot glue, both with substantial disadvantages;

    Screws; they need to be drilled first after marking the EXACT location of the holes. Self taping screws don't make holes in plywood w/o a lot of pressure which will not work here.
    Hot glue; concerned about when it oozes out and/or gets on your fingers and sliding the mount around to position it.

    I tried looking around for small self drilling screws, but couldn't find anything. My concern for the hot glue other then above is the setup time after you apply the glue to the underside of the mount and tiring to line up the piano wire thru the hole on the base AND the hole on the 'horn'.

    I also thought about double stick tape, but I can't see it sticking to typical rough surface plywood.



    servo piano wire holes 02.JPG Servo Base setup 1 small.JPG
     
    Last edited: Dec 26, 2021
  2. Sumner

    Sumner TrainBoard Member

    1,295
    1,584
    30
    If you didn't see my reply on the other forum let me know,

    Sumner
     
  3. jamescoleman1960

    jamescoleman1960 TrainBoard Member

    30
    5
    5
    use double stick tape to position your servo mount then put screws in that way it is mounted solidly
     
    Graff and Doug Gosha like this.
  4. videobruce

    videobruce TrainBoard Member

    327
    8
    14
    I'm sure the tape will stick to the mount ok, but to painted (primer) rough surface plywood??
     
  5. Shortround

    Shortround TrainBoard Member

    2,234
    1,213
    54
    I wouldn't use just tape to hold such a device. Even if the plywood is primered and painted. The tape is for stable displays.
     
  6. videobruce

    videobruce TrainBoard Member

    327
    8
    14
    There is something called "Alien Tape" ($20 for 3 10' rolls) that supposedly has a holding power of 17 lbs (claimed), but even so, once in place one can't move/adjust/tweak the servo base position.

    If those holes for the mount would of been further than what they are from the corners, one could just enlarge then to allow movement, but that could cause the base to slide around if the screws loosen up.
     

Share This Page