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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731   
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I consider myself quite handy at most things but I am humble (and clever) enough to know I can always learn. So here's my question:
I just got some Safari security grilles for rear windows of the 110 (thanks again Leeds) and I'm about to brave the elements and fit them 
Normally I would just drill through the skin using the holes in the mounting brackets as a guide. However, the grilles are steel and I don't want to damage the powder coating inside the holes before I rivet them on i.e. bare steel + aluminium rivet = 
Any suggestions for a reliable way of marking/drilling the holes without damaging the grilles? Usually when I mark/drill, holes tend to be "a bit off" 
I'm sure there is probably an obvious/clever solution and this seems like a good place to ask 
Also, the mounting brackets have holes on one side (top/bottom) and slots on the other. Is there a particular reason? Cheers Matt Tell someone you love them today because life is short. But shout it at them in German because life is also terrifying and confusing... Last edited by ZeDefender on 27th Dec 2011 6:48pm. Edited 1 time in total |
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27th Dec 2011 6:43pm |
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| T1G UP Member Since: 08 Dec 2009 Location: Bath Posts: 3101  
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masking tape the area so you don't scratch anything. line up the grills and with a pen mark the holes, remove the grill and drill, remove tape, inset rivnet and fit!
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27th Dec 2011 6:48pm |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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Never seem to get the marking right (God knows I try!) - do you just put a dot in the middle of the hole or draw round the rim)? I know it seems a daft question but if I cock up even a bit, I'll have a leaky skin... Tell someone you love them today because life is short. But shout it at them in German because life is also terrifying and confusing... |
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27th Dec 2011 6:50pm |
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| T1G UP Member Since: 08 Dec 2009 Location: Bath Posts: 3101
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well it depends on the size of the hole to the size of the pen! either way the middles best. get someone else to hold it still |
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27th Dec 2011 6:52pm |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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Cheers.
Any idea why there are slots on one side and holes on the other? I thought it might be to allow for vertical error, although that would suggest drilling inaccuracy which could also make horizontal error Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing... |
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27th Dec 2011 6:56pm |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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 Didn't think of that - usually drill pilots and upsize just for large holes (e.g. through plate).
At least if I drill really small pilots I can place the grills back on to see if I'm about to screw up really badly
Cheers all Matt Tell someone you love them today because life is short. But shout it at them in German because life is also terrifying and confusing... |
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27th Dec 2011 7:02pm |
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| K9F Member Since: 12 Nov 2009 Location: Bournemouth Posts: 9610  
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If you 'wet assembly' the rivnuts (by using Sikaflex or another suitable sealant) it will not matter if the paintwork is damaged. If the air can't get to it it won't corrode. With Sikaflex the excess can be cleaned off straight away using turps substitute or white spirit.
Just a tip! If you go through life with your head in the sand....all people will see is an ar5e!!
Treat every day as if it is your last....one day you will be right!! |
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27th Dec 2011 7:17pm |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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Cheers
Think I'm all set Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing... |
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27th Dec 2011 9:45pm |
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| ickle Member Since: 22 Jul 2010 Location: South Vendee Posts: 1777  
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On the grandmother sucking eggs line, use masking tape to stop a drill wandering on a panel, if you centre pop a panel (as advised in LRO a while back) you will get ripples and circular dints in the panel - might get away with it around the window frame as the panel is narrow, but a sharp drill and tape is better....
Keith |
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27th Dec 2011 10:36pm |
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| T1G UP Member Since: 08 Dec 2009 Location: Bath Posts: 3101
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exactly. |
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27th Dec 2011 11:28pm |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing... |
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27th Dec 2011 11:54pm |
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