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Go Back   Madabout Kitcars Forum > Mad Build Area > Marlin 5exi builds

Marlin 5exi builds Calling all you sexi builders....sorry 5exi builders, show us your progress.

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  #1  
Old 26th February 2006, 11:11
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SDMC001 SDMC001 is offline
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Default Floor pans and bulkhead fitting

Kit due soon, I have seen a lot of discussion over the floor pans and and bulk heads. Is there a reccomended distance appart for the rivnuts, I was thinking about every 200mm. Also someone once mentioned how to convert the measuremnt of drill sizes from metric to imperial so I can work out what size drill to use. The reason for saying, i have used rivnuts before but generally had to mess aabout a bit because of havving wrong sizw drill.


Thanks Steve
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  #2  
Old 26th February 2006, 11:51
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I have Dun my rivet nuts 100mm apart or less
The easy way of doing drill conversions is to buy one of these books or something similar
http://www.tool-up.co.uk/shop/diy/MISZCC.html

Hope this helps

Big_Fella
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  #3  
Old 27th February 2006, 19:04
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I agree with Big Fella, with 100mm apart. What I would say is use stainless steel rivets not rivnuts on all panels. That is except the central tunnel for future access. The reason being is maintaining the strength of the chassis. You will generally need to dill larger holes for rivnuts, which in my opinion will undermine the structural integrity.

With regard to drill sizes, please see below which is a reply to an earlier answer I gave on this subject:

'Gent's if I may be of assistance.

Try ordering 3/16" HSS Drill bits (Screwfix number Part number 16889).

It's just that the rivets are traditionally an imperial size (in this case 3/16") which is 187.5 thousandths of an inch.
The conversion to mm is 187.5 divided by 39 (thou) = 4.8 mm

39 thou = 1mm

Hope this helps.
In a previous work life I used to do engineering type stuff.'

Regards

Mike
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  #4  
Old 28th February 2006, 13:24
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Default Thanks

All thanks for your replies, looks like the old drill with get a good hamering.
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  #5  
Old 1st March 2006, 17:25
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Hi...

I'd agree with the rivetting instead of rivnuts on floorpans. However, if stainless steel rivets are a bit tough to fit then nfauto do a great anodised ali rivet (4.8 / 5mm dia). These are a good half way house between plain ali and s/steel and offer good levels of galvanic corrosion protection along with a large head to spread the load.

Rich
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