Modifying my Static Grass Applicator

Discussion in 'Scratchin' The Surface' started by Gary, Mar 15, 2020.

  1. Gary

    Gary Currently Unemployed ! Staff Member Administrator

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    Some of our member here will remember the static grass applicator I built many, many years ago. In a matter of fact, it was prior to this forum starting ! My applicator was made from PVC pipe and fittings, fly wire and a negative ion generator, a momentary push button and powered originally by a 9V battery, later to a various voltage transformer.


    No having a layout that fits snug into the corners of a small room, I found that it is damn difficult to apply grass to the corners of the layout due to the diameter of the applicator head. I need to apply grass to the corners but I can not pull the layout out from the walls.

    So, what to do...??

    Simple answer is to modify the applicator with removable heads. But I hear you say that there is a permanent wire connected between the negative ion generator and the mesh..! o_O

    A quick trip down the road to Jaycar and the hardware, I came home with all the bits I need to modify the original applicator...

    A piece of mesh (stainless steel), a 50mm PVC coupling and a 50mm PVC end cap, 2 x male RCA plugs and 1 x female RCA plug. I already had a length of 50mm PVC pipe left over from scratch building grain silos.


    First of all, the end cap needs the blank removed, leaving an inside rim for the mesh to sit on. This was drilled for a starting hole and then with a copping saw was used to remove the bulk, followed by some sanding. The mesh was cut to size with scissors.


    Take a male RCA plug, pull apart and solder an insulated wire (100mm in length) to this. Refit the rubber sleeve. Now strip the other end of the wire approximately 12mm in length. Twist this and feed through a hole in the mesh to one side, loop the wire and feed back through. Twist this wire together and solder in place.


    This shall look like this now, with a 50mm length of 50mm diameter PVC pipe placed into the cap. This piece of PVC pipe will secure the mesh in place quite tightly as it is pressed all the way in.


    No add the coupling to this and as can be seen, the RCA plug sits proud of the new mesh head.


    Next is to cut the wire that runs from the negative ion generator to the mesh on the original unit. Strip the end of wire on the mesh head end and secure the male RCA plug, same as the 50mm head.

    Strip the end of wire that now hangs free from the negative ion generator and solder on the female RCA plug.

    What we have now is two different sized heads that are removable. :D


    So, does it work ?? You betcha ! This is from the 50mm head...


    Now I can get onto grassing the back corners of my layout ! :thumbs:

    Cheers, Gary.
     
  2. York Paul

    York Paul Staff Member Moderator

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    Brilliant stuff Gary and a practical cost effective solution too I might add. I saw a static box thingy once for adding leaves to trees, apparently it works in the same way but the material/scatter/flock is placed in the flat top of this box and an electrode connected to the tree armature, when switched on and the armature brought within range all the flock / leaf stuff flies off the box top and sticks to the branches of the pre glued armature... All very clever I thought but expensive to purchase.:scratchchin:
     
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  3. Bo-Bo

    Bo-Bo Full Member

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    Gary that’s a fine looking static grass applicator and the best bit it’s hand built with a big cash saving.:thumbs:
     
  4. Andy_Sollis

    Andy_Sollis Full Member

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    We have some of the bits ready.. I’ll soon be making one myself!
     
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  5. Gary

    Gary Currently Unemployed ! Staff Member Administrator

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    Thanks Paul. :thumbs: I too have seen that reverse applicator. Can't remember if it was WWS or another supplier... :scratchchin:

    Cheers, Gary.
     
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  6. Gary

    Gary Currently Unemployed ! Staff Member Administrator

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    Originally the cost was around the $28.00AUD, or about £15.00. The additional piece I made cost about $7.00 AUD (£4.00)...

    Cheers, Gary.
     
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