Servo fixing

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Servo fixing

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9 February 2015 at 21:01 #55849
Philip Mitchell
Participant
@philipmitchell70963
Hi,

What is the preferred method of fixing servo's into a GRP Hull, there doesn't seem to be any brackets available that you can fix permanently then clip the servo in to.

The only way I can think of is make a wooden support then fix the servo to that.

Phil.
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9 February 2015 at 21:01 #2468
Philip Mitchell
Participant
@philipmitchell70963
How to fix servo’s in a GRP Hull
10 February 2015 at 09:51 #55852
Dave Milbourn
Participant
@davemilbourn48782
Phil

The problem is that there are so many different shapes and sizes of GRP hull. This is the method used by Model Slipway. It's easy and cheap to make. The servo is a firm sliding fit into the box; there's no need to screw it down as long as it doesn't wobble about.
10 February 2015 at 12:30 #55855
Mike Dunn
Participant
@mikedunn19317
Hi philip, graupner do the perfect thing for holding servos order number 1024

hope this helps mike.
10 February 2015 at 13:47 #55857
Dave Milbourn
Participant
@davemilbourn48782
Sorry, Mike, but £5.63??? Plus £3.50 P&P!! Total is £9.13 – that would buy FOUR standard servos from a well-known Hong Kong supplier – with change. http://www.hobbyking.co.uk/hobbyking/store/__28688__HobbyKing_HK15138_Standard_Analog_Servo_38g_4_3kg_0_17s_UK_Warehouse_.html
Good luck, Graupner. You'll forgive me for not joining the queue for these. http://www.wheelspinmodels.co.uk/i/201561/

Dave M

Edited By Dave Milbourn on 10/02/2015 13:51:16

Edited By Dave Milbourn on 10/02/2015 13:51:52
10 February 2015 at 19:42 #55858
mike farrell
Participant
@mikefarrell21522
Hi Phil As Dave said build your own .Every member on this forum will have scrap ply and I,m no different ,I custom build all my own .Cheap and satisfying ,Dave has done the drawings so satisfy yourself and make your ownMichael
11 February 2015 at 12:32 #55869
mark69
Participant
@mark69
hi got any pics of your boat where the servos are going ? you could wrap the servo in masking tape and soloflex them in not the stuff from diy stores we stick our marine windows in without screws ,I’ve done this on many RC aircraft it works …… Mark
11 February 2015 at 13:01 #55871
Dave Milbourn
Participant
@davemilbourn48782
Mark69

I'm afraid I don't understand your posting. The lack of punctuation is confusing and I can't find a link to any likely product of that name or similar. For example Soloflex seems to be a type of exercise machine while Solarflex is roof paint. You say that what you use is not the stuff from diy stores so can you clarify what exactly this product that you use is and where we might buy it, please? An Internet link would be ideal.

Dave M
11 February 2015 at 13:02 #55872
Colin Bishop
Moderator
@colinbishop34627
I usually simply epoxy a couple of pieces of spruce or lime stripwood across the hull at the required height and spacing and simply screw or bolt the servo between them. Easy to remove if you ever need to.

See pic below.

Colin

Edited By Colin Bishop, Website Editor on 11/02/2015 13:08:36
11 February 2015 at 15:12 #55874
mark69
Participant
@mark69
Hi sorry !! it seems my spell check stopped my from typing sikaflex it’s a marine sealant like you would buy in a tube with a nozzle …. mark

Edited By mark69 on 11/02/2015 15:17:38
11 February 2015 at 15:22 #55876
Dave Milbourn
Participant
@davemilbourn48782
Thank you.

DM
11 February 2015 at 15:40 #55878
Colin Bishop
Moderator
@colinbishop34627
Sikaflex is good stuff but it is pretty permanent, if going down that route then ordinary silicone sealant might be better as it can be removed more easily should it be necessary.

Colin
11 February 2015 at 18:29 #55885
mark69
Participant
@mark69
Hi this my mold lve been building,and with the bonding sikaflex, this hull mold is 5' long .lve yet to build the deck mold .The white you see around the wood is this sikaflex ,nothing is bonded with grp as per our full size mold!!! .cheers ……..mark

Edited By mark69 on 11/02/2015 18:32:17
11 February 2015 at 23:20 #55891
Charles Oates
Participant
@charlesoates31738
The tried, tested and much used method is exactly as Colin has posted. It’s been used in countless grp hulls. It only takes a little time to do. It’s neat, you can remove a servo easily, and you can change the position if you need to. As the old saying goes, do it right, do it once.
Chas.
12 February 2015 at 10:23 #55896
Mike Dunn
Participant
@mikedunn19317
as a cheap alternative you could use the servo bracket side mount dave, at £1.42

mike.
12 February 2015 at 10:59 #55899
Dave Milbourn
Participant
@davemilbourn48782
I didn't see that one, Mike, but the job isn't one I'd buy anything especially for. Anyroad up, m'duck, who's to say that the clip will fit my particular servo exactly? If I have to modify a commercial fitting before I can use it then that rather defeats the point of buying it – which is to save work. If I make my own mount from styrene, plywood or hardwood beams then it's bound to fit. QED.

Dave M
12 February 2015 at 17:56 #55904
ashley needham
Participant
@ashleyneedham69188
Most of my servos are mounted in little boxes made from plywood and balsa (as per previous drawing) and wedged in with a bit of card. Not had an issue yet with this. Does it for me.

Ashley
12 February 2015 at 19:32 #55906
Dave Milbourn
Participant
@davemilbourn48782
Ashley

No hardboard, then?

Dave M
13 February 2015 at 09:19 #55911
ashley needham
Participant
@ashleyneedham69188
Depends whats to hand, really……
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