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Old 10 January 2013, 15:45   #11
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If you plan to take it off for storage etc why not have it with a G clamp type thing over the top of the transom?

No holes at all then
You're not a million miles off the mark with your suggestion.

It was an MOD light pole that gave me the original idea. It used a thumbscrew device which could be tightened. However it also had an alloy pin which locates in the transom to stop the light pole moving from side to side.

Because the light pole can collapse (Protex catches) I don't mind the lower section being bolted on permanently.
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Old 10 January 2013, 16:05   #12
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It's not that bad an idea - I've seen it done!!!
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Old 10 January 2013, 16:23   #13
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im about to make a fold down white light - im using a stainless ratchet mount (for vhf aerial) as the base of the light. sturdy and easy to fold down
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Old 10 January 2013, 16:46   #14
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Cheers Downhilldai. I'll bolt it on as suggested. I hadn't thought about someone grabbing it, but i can see it makes sense for it to be fitted securely.

Thanks 9D280 regards bolting through the transom knee - I hadn't actually considered that.

I thought it might interfere with the steering arm on the Twatsoo at full lock, but it doesn't. Just tried it, so far, so good. What about the actual area for mounting? The transom knee measures 11" high x 11" deep x 2" wide. What are your thoughts regards the mounting plate? If I use the transom knee (area between tube and knee) and get a plate made that fits the area with 4 mounting holes and the lower section of the light pole welded so when fitted rests against the transom?
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Old 10 January 2013, 17:05   #15
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You could use the transom eyebolt and have a separate bracket at 90 degrees, lower down, fixed through the transom knee.
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Old 10 January 2013, 17:38   #16
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That could work Downhilldai. Here's another picture of the transom knee from a different angle. I'll need to check how much available thread there is on the transom eyebolt, or simply loose the penny washer that's on it which would be replaced with the flange/fixing plate from the light pole.
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Old 10 January 2013, 18:49   #17
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If you need to, get a longer eyebolt - they're not expensive and you can re-use the original somewhere else, I'm sure.
Use loctite on the domed nut, if you re-use it, as there's no nylon in them and they can work loose.
A button head bolt would look good through the knee.
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Old 10 January 2013, 19:06   #18
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Quote:
Originally Posted by Festinghouse View Post
im about to make a fold down white light - im using a stainless ratchet mount (for vhf aerial) as the base of the light. sturdy and easy to fold down
I made one like that a few years ago,worked well till i let it folded down over the winter and it filled with rain water through the drain hole and light fell apart.good luck with it
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Old 11 January 2013, 10:50   #19
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Do you even need a plate to secure to the knee? Would a U- bolt of an appropriate diameter just clamp it solid?
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Old 11 January 2013, 11:19   #20
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Do you even need a plate to secure to the knee? Would a U- bolt of an appropriate diameter just clamp it solid?
No, the pole would/could turn and the knee would need twice as many holes in it.

Twood also resemble a bit of egzost.
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