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how to centre holes Options
willie
#1 Posted : 20 April 2010 18:55:18

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centering holes in the end of mast and small stanchions trickey try this brass tube of various sizes slip in to each other so fit tube diameter of drill to.tubes about 25millmeters long up to the outer diameter of mast/stachion slip it over insert drill dead on centre
Jamie
#2 Posted : 24 April 2010 12:28:00

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Sorry chap you've lost me on that one Blushing

Any chance of explaining it again but in laymans terms Huh Blink


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captainalan
#3 Posted : 24 April 2010 13:07:42

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i could be wrong!!!
but i think he's trying to say incert 1 tube within another and another till you have the requierd drill bit size then slip it over the end of the mast or spar and then the drill bit will be dead central
Alan
willie
#4 Posted : 24 April 2010 16:11:15

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captainalan spot on, try it in a model shop brass tubes slide in to each other like a telescopic aerial old aerial from car etc will do cut down to required size
another tip boreing holes in the hull of a boat holes are ovel centers miss leading find centre of shaft hole etc bore hole to fit smallest tube insert tube
next tube that slips over cut end with snips to look like hole saw slip over first tube twist and drill, tube will drill through donot remove , next tube the same till required diameter is reach i have dont this with a bow thruster on a supply boat and a stern tube on a fishing boat cutting the round shaped keel very neatly
Tiswas
#5 Posted : 24 April 2010 18:25:15

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Excuse my ignorance, but why do we need to drill holes in the centre of the masts. Completely lost on that one?
TIS
willie
#6 Posted : 24 April 2010 19:21:50

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Tiswas wrote:
Excuse my ignorance, but why do we need to drill holes in the centre of the masts. Completely lost on that one?
TIS

dont know about this model yet but if it is like the bounty kit i am building you
drill up the mast to fit boom guides hoops brasswire
Jamie
#7 Posted : 24 April 2010 20:45:24

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Ok yep got it now ThumpUp simples Blushing

Thanks willie and captainalan


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'Cause how can you be grumpy?
When the sun shines out ya bum!!
Tiswas
#8 Posted : 24 April 2010 22:01:33

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Thankyou for that willie, will figure it out in time. It's the way you tell em.
TIS
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