USS Sulaco / Aliens

ThunderChild

Active Member
Bishop:
Ripley, maybe you should take a stress pill, and calm down...
daisy.... Daaaaaaaiiisyyyy........

Ripley:
Bishop? Bishop...!?
 

Alien99

Papercraft Member
Hi folks:thumb:
some minor updates ws done:mrgreen:

what u have see is belly structure...between the bottom side plates
progress024.jpg


front view....yes what u see here is another cargo hangar
progress023.jpg


and how is it look like on the finished parts..
progress025.jpg


progress026.jpg


and dry completation with the bottom side plate:thumb:

progress027.jpg


still working.....:twisted: on it..:wave:
 

Alien99

Papercraft Member
hi folks...here are some new details of the belly section..

progress028.jpg



progress029.jpg


progress030.jpg


some makro detail of the texture:eek:

progress031.jpg


in this point..the positive news ends.:confused:.....after glueing the belly parts to the torso ..the whole thing began to screw...it take 2 nights to become fully visible...wall1.....maybe THIS is a negative aspect of the cube system.there must be some weight on the parts when you glueing big area. after pasting the big pars together there must be some torsion forces appear....damnwall1wall1wall1

progress032.jpg


what I ve gonna do with it?...any idea?....Ive released some force by cutting some cubes across....maybe it will e better after pasting the rounded parts above the hangars....maybe not....who knows....:confused:
 

Alien99

Papercraft Member
there are karton-papers glued by the double sided tape inside each cube:thumb:.
the whole structure is very hard from that point:twisted:. so it makes me an amazing in my face.:eek:.how can screw such a hard construction that way:confused:....

today is one night from cutting the cubes in the torsion point..an it looks 20% better:eek:ops:....i hope that th process will be continue..
 

Art Decko

Member
what I ve gonna do with it?...any idea?....


Jan,

Truly magnificent work! This model is a milestone in card modeling history! :)

I like your idea for building the structure from cubes. Should be simple and strong.

About the torsion problem - it's not clear to me what is causing it. So, below are three ideas for dealing with the problem, depending on the cause. I hope these ideas might be useful in helping you find a solution.


(1) Stacking Alignment
Are the cubes attached together so that they are "stacked" one directly on top of another? If so, then there are vertical seams through the entire structure. Is the torsion happening along one (or more) of these seams? If that is true, then "staggering" the cubes (so each cube "straddles" the two below it), will break up the vertical seams, and maybe eliminate the twisting

This is what I mean:

Below, "|------|" represents a cube.

If you are stacking your cubes like this:

|------||------||------||------|
|------||------||------||------|


Try this instead (like bricks in a wall):

|------||------||------||------|
|--||------||------||------||------|



(2) Paper Grain
Is the twisting being caused by the paper curling after becoming damp from glue? When paper curls or warps from dampness, it will usually curl across the grain of the paper. If the torsion is caused by all the cubes curling in the same direction, rotating half or all of them 90 degrees on the printed paper might eliminate or minimize the problem by changing the direction of the curl.

Maybe you could alternate the cubes so every other cube has the paper grain in a 90 degree different direction from its neighbors on each side, above, and below.


(3) Internal braces
Attach an internal brace across one or more sides of each cube to make the cubes more stiff. I design 1/87 scale architectural models. At this scale, some models are like big empty boxes, so twisting or warping can be a problem. I prevent it by using a simple standard brace attached to the inside of my walls. The braces are very rigid because the cross-section of the base of the brace has the form of a triangle. This prevents the brace from twisting. These braces work well for me. I like this solution because the brace is very stiff, easy to make, and it doesn't require some additional material (e.g. wood). I will attach a JPG below.


Good luck! :wave:
 

Attachments

  • brace.jpg
    brace.jpg
    56.2 KB · Views: 381
S

SJPONeill

Further to the points above, it might pay to ensure that the individual cubes are fully cured prior assembling into the larger structure. That way, they will not be curing internally while also subject to the stress of the larger structure. While none of us wishes to see this development build delayed in anyway (need my daily fix!) a couple of days between assembly stages may make a difference.

I'm not too au fait with the effects on glues upon paper, but possibly an adhesive that does not soak into the paper might also help and then there would be less potential for deformation due to the paper's qualities changing when then glue is absorbed into it?
 

Stev0

Active Member
What about thick matte card with mortised edges to create the boxes.

Then apply the card skin over top.
 

Alien99

Papercraft Member
thanks guys for all the ideas...

Art Decko: good idea with the braces..
I´ll try to think about it.

I m creating the cubes into the "brick wall layout" for sure.:thumb:
And you are right...I ve noticed that the screwing is created by the wet aspect of the water-based glue on the large areas....:rolleyes:

SJPONeill: maybe I ll try another glue..:wave:

Thanks:thumb:
 

Erindale

Member
I've had success using spray adhesive on projects requiring glue spread across large surface areas. A quick spray on both surfaces, a pause allowing them to "tack" and the parts stick without the warping or screwing. I'm not sure what would be available overseas but you might try this option before altering your brilliant design. Best of luck!!
 

Alien99

Papercraft Member
few days passed and I have some new parts to show.:thumb:
First is the new structure on the belly...:twisted:

progress033.jpg


following by the upper "head" section (the EEV´s are located here)....
..nice skyscraper again :mrgreen:

progress034.jpg


and the dry completation of this beast....just look at the dimensions.:eek:

progress035.jpg


and one different angle...the Sulaco is taking her shape finally...

progress036.jpg


and we are still somewhere around 23% of finished parts...wall1:rolleyes:

progress036-plan.jpg

that´s all for today sign1
 
Top