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  #1  
Old 08-28-2021, 07:40 AM
RV701775 RV701775 is offline
 
Join Date: Jul 2019
Location: Boston, MA
Posts: 94
Default Elevator Foam Rib Question

I am about to start fabricating the foam ribs on the elevator, but the question I have is do I sand the blocks down to the black line on the paper template or to the point where the black line is completely removed?
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  #2  
Old 08-28-2021, 09:36 AM
JET14 JET14 is offline
 
Join Date: Aug 2019
Location: Ridgeway, SC
Posts: 31
Cool foam blocks

I cut them just outside of the line with a band saw and then just sanded them enough to smooth them out (just a couple of licks). Worked great!
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  #3  
Old 08-28-2021, 10:21 AM
squeakersc063 squeakersc063 is offline
 
Join Date: Jul 2020
Location: Las Vegas
Posts: 10
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Quote:
Originally Posted by RV701775 View Post
I am about to start fabricating the foam ribs on the elevator, but the question I have is do I sand the blocks down to the black line on the paper template or to the point where the black line is completely removed?
You can always sand some off later if they're too fat when you try to install them. If they're too fat or you gunk on the b half too thick you'll see them protruding from the elevators.
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  #4  
Old 08-28-2021, 06:40 PM
mc607 mc607 is offline
 
Join Date: Apr 2014
Location: Canada
Posts: 67
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When you weight it down while proseal sets up, donít use any foam gasket material between weighted material and skin. I put some sill gasket under mine and it really ruined my day. Left a bad ripple in the skin between foam ribs.
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  #5  
Old 08-29-2021, 08:58 PM
jcirelli jcirelli is offline
 
Join Date: Aug 2020
Location: Mokena, IL
Posts: 12
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I'm at the same spot - I did a "rough" cut on the bandsaw yesterday, then began sanding down closer to the lines - though I still have a bit of close sanding. Ended up getting stupid hot in the hangar this weekend, and cooling off starting tomorrow, when I'll knock it out.
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  #6  
Old 09-01-2021, 09:38 PM
jcirelli jcirelli is offline
 
Join Date: Aug 2020
Location: Mokena, IL
Posts: 12
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I clamped a piece of sandpaper and angle to the benchtop in order to keep the rib square while sanding. It's worked very well...
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