Dash Lower Edge

[Guest mcramsay]

Struggling to understand what iva is looking for with regards to the dash lower edge. It states minimum radius if 19mm or 5mm, is the 19mm if the dash is uncovered with foam and 5mm if covered? My dash does not curve on the lower edge. If i use 10mm OD rubber pipe and split it length ways and push it over the lower edge ( like edging trim) and then cover the dash in foam+ leather am I right in thinking this will give the required 5mm lower radius and with it being rubber provide the hardness required? I read the tester will press the lower edge and fail if he can feel the dash panel underneath?

[Guest 2b cruising]

Sounds good to me if the rubber or foam stays in possision as a permenet fixture..

If you are covering with leather/vinyl, you should be able to create a 5mm radius easily.

Maybe even by double thickness foam under the vinyl at the edge and single foam on flat surfaces.

This could even be used around sunken gauges?

[Guest 2b cruising]

What is your dash made of anyway.

If timber or soft material, you should be able to form the lower edge by shaving it. Then cover.

Edited July 26, 2015 by 2b cruising

[Guest mcramsay]

I was planning on fitting the 10mm pipe and then leathering over it so you would never see it. And it would be permanent, I will be buying foam the same thickness as the gauge bevels and then sinking them into the foam so they should be completely flush with the vinyl so no raised edges to fail on

[Guest 2b cruising]

Sounds good to me.

[Guest mcramsay]

Can the pipe for the lower edge be solid pipe rather than rubber?

[fry61]

Sorry but no to most of the above --- the lower edge of the dash MUST be 38mm diameter ( 19mm rad.) Therefore if your dash is made from a sheet material there needs to be something like 38mm square timber fixed with half --19mm-- to the dash & the rest in a continuous radius to behind the dash panel.

 

At Florins IVA the examiner was pleased to see correct radius & that the whole dash / lower edge was foam & vinyl covered.

 

As said Craig, the instruments let into the foam is also a brill idea; which is as we did Florin's dash to ensure the clocks were "safe".

Edited July 26, 2015 by florin metal works

[Guest mcramsay]

So I could use the same method as above but change the 10mm of pipe for 38mm pipe?

[fry61]

I think that would comply with the IVA regs but may be difficult to cover as you would have a concave return where dash joins split tube -- although the foam on dash may reduce this hollow some-what.

[Longboarder]

IVA document is fairly specific. 19mm radius hard or 5mm radius if covered with material with a shore rating of less than 50. See note 6 in section 12 on interior fittings.

Most car manufacturers settle for 19mm radius (38mm diameter) or more to be on the safe side of a pass.

 

Nigel

[fry61]

Have just checked IVA & it's as Nigel said above -- guess you makes your choice & takes your chance. Again as said in my post above Florin ended up with both = first time pass.

[Snapperpaul]

I used 40mm plastic domestic waste pipe cut and pushed over dash bottom edge, covered with yoga mat and vinyl

 

Edited July 27, 2015 by Snapperpaul

[Guest alexpink]

I made my dash from plywood which I cut to shape with a jigsaw, and drilled the holes for the warning lights. I then layered plywood to 40mm thickness along the bottom edge of the back of the dash, glued and screwed it into place. I carved a 40mm diameter curve into the layered wood, covered it with foam, and cut out the holes for the clocks in the foam.I placed the clocks into the holes with the bezels above the surface of the foam and cut around the edge with a scalpel to allow the back face of the bezel to rest against the wood instead of the foam, thus setting it back and reducing the amount the bezel sticks out from the surface.

I then covered it with vinyl leather.

Might be overkill, but I think it looks and feels nice, and there's no way I can fail IVA due to the radius being incorrect..

 

<a href="http://s376.photobucket.com/user/alexpink41/media/20150502_154249_zpspchusjvm.jpg.html"target="_blank"><img src="http://i376.photobucket.com/albums/oo208/alexpink41/20150502_154249_zpspchusjvm.jpg" border="0" alt=" photo 20150502_154249_zpspchusjvm.jpg"/></a>

Edited July 27, 2015 by alexpink

[fry61]

Alex's description above is very similar to Florin's dash, except I used 6mm oil-tempered hardboard & softwood to form the lower curve, thought that these materials would stand being damp at times a little better than ply.

[Guest mcramsay]

I had some old wooden quadrant trim nocking around in the garage... I made a very rough mock up but I'm just trying to get my idea across.. Would something like this work?

 

 

 

 

My idea would be to have a piece of 40mm diameter bar, with a slot the thickness of the dash panel routed in it, this way the bottom edge would have the correct radius, but I wouldn't have a large bump on the front of the dash panel...