unclejamal
Inspired by a video and a chat with @e3scott (NAMC) I was wondering how a depron edge rounding and beveling with gypsum works. Here the results Iade with a test piece of 6 mm depron
4 gr depron glued
12 gr depron with gypsum after curing
10 gr depron with sanded gypsum
Therefor 8 gr of gypsum has been added to the piece of depron, which had two 17 cm long edges I applied gypsum on.
The rounding itself can be achieved with or without pre cutted edges. But the additional weight is not worth it.
I will try to get lightweight spackle.
Regards

photos:
--> depron sample




i did a slight pre-cutting with a knife on one side of the depron sample


--> with gypsum (cured, unsanded)



--> sanded

Quote 4 0
omar182114
Quote:
Inspired by a video and a chat with @e3scott I was wondering how a depron edge rounding and beveling with gypsum works. Here the results Iade with a test piece of 6 mm depron
4 gr depron glued
12 gr depron with gypsum after curing
10 gr depron with sanded gypsum
Therefor 8 gr of gypsum has been added to the piece of depron, which had two 17 cm long edges I applied gypsum on.
The rounding with or without prescription cutted edges can be achieved. But the additional weight is not worth it.
I will try to get lightweight spackle.
Regards

Gesendet von meinem D5503 mit Tapatalk

I used dollar tree foam and I have made fuselage that it is close to the real model.

Sent from my SAMSUNG-SM-N920A using Tapatalk
_____________________________________________________________________________________
http://www.youtube.com/user/Omar142118
Quote 4 0
unclejamal
Quote:
I used dollar tree foam and I have made fuselage that it is close to the real model.

Sent from my SAMSUNG-SM-N920A using Tapatalk

have you used spackle for edge filling, which you have sanded off?
Quote 1 0
omar182114
Quote:
have you used spackle for edge filling, which you have sanded off?

No

Sent from my SAMSUNG-SM-N920A using Tapatalk
_____________________________________________________________________________________
http://www.youtube.com/user/Omar142118
Quote 0 0
e3_Scott
Quote:
Inspired by a video and a chat with @e3scott (NAMC) I was wondering how a depron edge rounding and beveling with gypsum works. Here the results Iade with a test piece of 6 mm depron
4 gr depron glued
12 gr depron with gypsum after curing
10 gr depron with sanded gypsum
Therefor 8 gr of gypsum has been added to the piece of depron, which had two 17 cm long edges I applied gypsum on.
The rounding with or without prescription cutted edges can be achieved. But the additional weight is not worth it.
I will try to get lightweight spackle.
Regards

photos:
--> depron sample




i did a slight pre-cutting with a knife on one side of the depron sample


--> with gypsum (cured, unsanded)



--> sanded



Hi unclejamal -

Thanks for doing this test and sharing the results, very interesting Fun to experiment with these things, the next great build process could be just around the corner if one is willing to try

Cheers,

Scott
Park Jet noise...the "other" sound of freedom😎
#ParkJetnoise #ParkJetpilot
Quote 1 0
Baufritz96
How light is that material? Any weight comparisons?
Build it, fly it, crash it, build another.
Quote 0 0
unclejamal
Quote:
How light is that material? Any weight comparisons?

i guess this question belongs to the comment of e3scott?
Quote 0 0
Baufritz96
Nah, I was just too dumb to read.
Build it, fly it, crash it, build another.
Quote 1 0
e3_Scott
Quote:
How light is that material? Any weight comparisons?


The filler that I use is a very lightweight drywall spackle recommended to me by someone else on the forum quite awhile ago. It is called DAP Fast and Final. Not sure if it is available everywhere, the link is from Amazon.
2013-03-20 13.48.53.jpg 
I normally do a bit of shaping and sanding like unclejamal shows to get the grooves as small as possible, I use it mostly just on the nose/fuselage and the canopy to make them very sleek for looks and drag reduction. It might add a few grams, but nothing very noticeable. It dries fairly quickly, but I normally let it set up overnight so that it doesn't pull out of the grooves when I do a final sanding.

Cheers,

Scott
Park Jet noise...the "other" sound of freedom😎
#ParkJetnoise #ParkJetpilot
Quote 4 0
unclejamal
Quote:
The filler that I use is a very lightweight drywall spackle recommended to me by someone else on the forum quite awhile ago. It is called DAP Fast and Final. Not sure if it is available everywhere, the link is from Amazon.
[ATTACH=full]50505[/ATTACH]
I normally do a bit of shaping and sanding like unclejamal shows to get the grooves as small as possible, I use it mostly just on the nose/fuselage and the canopy to make them very sleek for looks and drag reduction. It might add a few grams, but nothing very noticeable. It dries fairly quickly, but I normally let it set up overnight so that it doesn't pull out of the grooves when I do a final sanding.

Cheers,

Scott

is it written on the can, whats the component of this spackle. is i an epoxy? can't be because you don't need a hardener to be mixed with?
Quote 1 0
e3_Scott
Quote:
is it written on the can, whats the component of this spackle. is i an epoxy? can't be because you don't need a hardener to be mixed with?


Hi unclejamal -

No, you simply spread it on, I use some scrap foam and let it dry. I'm not sure what components are in it, I just looked at the label and they don't have any sort of description. It's normal use is for finishing drywall or gypsum board depending on what you call it indoors or filling holes left by nails or screws from hanging pictures etc.

Cheers,

Scott
Park Jet noise...the "other" sound of freedom😎
#ParkJetnoise #ParkJetpilot
Quote 2 0