PaperModelers.com

Go Back   PaperModelers.com > > >

Reply
 
Thread Tools Display Modes
  #1  
Old 12-13-2015, 06:39 AM
eric_son's Avatar
eric_son eric_son is offline
Member
 
Join Date: Apr 2008
Location: Quezon City, Philippines
Posts: 715
Total Downloaded: 8.19 MB
Messerschmitt ME-328 (luft'46), layered cardboard

While I was struggling to resume work on my Bachem Natter, I got distracted by a program I installed a year ago -- Autodesk's 123D Make. 123D Make is a neat application that processes a 3D model by slicing it into many layers of uniform thickness. The resulting pattern is then generated which will allow you to reconstruct the model.
By default, the target medium is corrugated cardboard which is then cut using a laser cutter.

Unfortunately, I don't have a laser cutter. This is probably why the program sat on my HDD for such a long time. Then, I realized that it was possible to change the settings of the application to a different target medium. I have a stack of 190GSM card stock which is approximately 1/3mm thick. I decided to give 123D a try.

I chose a model that has a good mix of curved and straight surfaces. I picked the ME-328.

So I fired up Metaseq and quickly whipped up a low poly model:


I made sure not to go overboard with the details. Once satisfied, I converted the low poly model into the standard mesh:


Fortunately, Metaseq is able to export to OBJ format. This allowed me to import the OBJ model into 123D Make.

Here's how it looks like under 123D Make:


After setting the target medium to 0.33mm thick A4 sheets, 123D Make started to sliced up the model. Here's how it looks like:


Since I didn't want to use a lot of paper, I adjusted the target size of the model just enough to generate parts that would use 2 A4 sheets. I then saved the plans to PDF for printing:


I thought.. I really thought I could finish cutting and building these parts within a day. But I was wrong. :( :(

I'll continue my build next weekend.



__________________
Currently designing:
* Focke-Wulf VTOL [progress: temporarily shelved]
* Heinkel HE P.1080 [progress: struggling to make the assembly instructions]
http://cutfoldpaste.blogspot.com/
Reply With Quote
Login to remove ads
  #2  
Old 12-13-2015, 08:42 AM
paperengineer's Avatar
paperengineer paperengineer is offline
Member
 
Join Date: Sep 2014
Location: Western North Carolina
Posts: 1,747
Total Downloaded: 640.63 MB
Interesting method and interesting subject. This will wear the heck out of a sander when you get there!
__________________
PAPERENGINEER
Reply With Quote
  #3  
Old 12-13-2015, 08:48 AM
Isaac's Avatar
Isaac Isaac is offline
Member
 
Join Date: Oct 2010
Location: Dayton Ohio
Posts: 6,561
Total Downloaded: 221.70 MB
3D printing. The manual way


Isaac
__________________
My gallery [http://www.papermodelers.com/gallery...v-r-6&cat=500]
Recent buildsB777, Hunter, Noratlas, Tzukit, Tsybin NM-1,Yak 25M, Mig-15UTI, Su-9(1st)
Reply With Quote
  #4  
Old 12-13-2015, 08:52 AM
SCEtoAUX's Avatar
SCEtoAUX SCEtoAUX is offline
Member
 
Join Date: Jul 2007
Location: USA
Posts: 6,961
Total Downloaded: 425.47 MB
Nice job on that aircraft. As was stated lots of sandpaper to be used.

Looks like you could use that method for ship hulls. There is a model out there that uses the slices/sanding method to shape the hull.
Coastal Freighter Emiliana
__________________
~Doug~
AC020303 EAMUS CATULI! Audere est Facere THFC 19**-20** R.I.P. it up, Tear it up, Have a Ball
Reply With Quote
  #5  
Old 12-13-2015, 09:54 AM
Isaac's Avatar
Isaac Isaac is offline
Member
 
Join Date: Oct 2010
Location: Dayton Ohio
Posts: 6,561
Total Downloaded: 221.70 MB
Eric

I really don't think this layering design is suitable for scale models.

Too much material needs to be removed and it is up to the person doing the sanding to interpret the transitions.


Isaac
__________________
My gallery [http://www.papermodelers.com/gallery...v-r-6&cat=500]
Recent buildsB777, Hunter, Noratlas, Tzukit, Tsybin NM-1,Yak 25M, Mig-15UTI, Su-9(1st)
Reply With Quote
Login to remove ads
  #6  
Old 12-13-2015, 10:15 AM
Yale's Avatar
Yale Yale is offline
Member
 
Join Date: Mar 2010
Location: Dipinajata, Texas
Posts: 703
Total Downloaded: 59.62 MB
Quote:
Originally Posted by Isaac View Post
Eric

I really don't think this layering design is suitable for scale models.

Too much material needs to be removed and it is up to the person doing the sanding to interpret the transitions.


Isaac
Hmnn. ... Instead of sanding off the outer corners of the layers, might it be possible to fill in the inside corners, as for grouting tile? Not exactly sure what material would work best for this, but if it were some epoxy/plasticized stuff, it could take a good buffing or polishing. The end result would be a plastic-like shell over a paper core.
Reply With Quote
  #7  
Old 12-13-2015, 02:55 PM
luke strawwalker's Avatar
luke strawwalker luke strawwalker is offline
Member
 
Join Date: Mar 2011
Location: Needville and Shiner, TEXAS
Posts: 440
Total Downloaded: 1.43 MB
Quote:
Originally Posted by Yale View Post
Hmnn. ... Instead of sanding off the outer corners of the layers, might it be possible to fill in the inside corners, as for grouting tile? Not exactly sure what material would work best for this, but if it were some epoxy/plasticized stuff, it could take a good buffing or polishing. The end result would be a plastic-like shell over a paper core.
That could be possible, using Mod-Podge or even Elmer's Carpenter's Wood Filler-- we do something similar in model rocketry quite a bit...

Even regular drywall spackle could work, but IMHO Elmer's Carpenter's Wood Filler would be much better...

Later! OL JR
__________________
The X-87B Cruise Basselope-- THE ultimate weapon in the arsenal of Homeland Defence and only $52 million per round!
Reply With Quote
  #8  
Old 12-13-2015, 06:53 PM
eric_son's Avatar
eric_son eric_son is offline
Member
 
Join Date: Apr 2008
Location: Quezon City, Philippines
Posts: 715
Total Downloaded: 8.19 MB
Quote:
Originally Posted by SCEtoAUX View Post
Nice job on that aircraft. As was stated lots of sandpaper to be used.

Looks like you could use that method for ship hulls. There is a model out there that uses the slices/sanding method to shape the hull.
Coastal Freighter Emiliana
I see what you mean. Maybe a hybrid model with the ship hull built using this method, with the rest using the traditional method.

This should allow you to capture the compound curves of the hull. The only downside is the need to smoothen + paint.

Quote:
Originally Posted by Isaac View Post
Eric

I really don't think this layering design is suitable for scale models.

Too much material needs to be removed and it is up to the person doing the sanding to interpret the transitions.


Isaac
Hahahah! I agree. I came to that realization after the tip of my pointer finger already got sore from pressing on the pen knife. At that point, I've only managed to cut enough pieces to build up a third of the plane.

I do see other uses for this. Perhaps it can be used to create human figures (ground crew + pilot + pilot's dog).

One thing bothering me right now is the poor quality of the card stock I'm using. It tends to delaminate into two layers without warning. I'm kinda worried about the rudder part. Maybe I'll need to use a lot of CA to seal the edges to prevent it from delaminating.


Another more practical approach would be to model each part of the plane separately. You can then orient the 'slices' in an optimal manner to ensure strength and ease of sanding later on. Then assemble as you would a plastic/resin model.

Maybe I'll try that approach some time in the future.

But for now, I'm just itching to finish this to see how it will look like. Then I'll resume work on the natter.

Quote:
Originally Posted by luke strawwalker View Post
That could be possible, using Mod-Podge or even Elmer's Carpenter's Wood Filler-- we do something similar in model rocketry quite a bit...

Even regular drywall spackle could work, but IMHO Elmer's Carpenter's Wood Filler would be much better...

Later! OL JR
If the scale were bigger, that would probably work. But the current model is roughly 3.5inches from tail to nose. The wings are surprisingly thin -- just two layers of cardboard (.5mm). The ridges on the wings are too far apart to make filling + sanding feasible.

I'm thinking of making a custom smartphone holder for my car. I want it to fit snugly on the side of my head unit as if it were designed specifically for that purpose. Not really happy with the current crop of holders in the market that need to be hung from the rear view mirror, windshield or from the CD-slot.
The layered cardboard + filler + sanding would work great on this type of model.
__________________
Currently designing:
* Focke-Wulf VTOL [progress: temporarily shelved]
* Heinkel HE P.1080 [progress: struggling to make the assembly instructions]
http://cutfoldpaste.blogspot.com/
Reply With Quote
  #9  
Old 12-20-2015, 03:40 AM
eric_son's Avatar
eric_son eric_son is offline
Member
 
Join Date: Apr 2008
Location: Quezon City, Philippines
Posts: 715
Total Downloaded: 8.19 MB
all done!

After what felt like a zillion layers, I'm finally starting to see a plane to appear:



And finally, it's done:






Very curvy!
The build method is good at capturing curves.
But it's very bad at doing straight edges. (But of course, it could also be the builder's fault. )

Anyway, as Isaac said, it's not suitable for this kind of model. And I wholeheartedly agree. But it was worth trying.

I figured it would be a great modeling method for making landscape. You could use this to make the hill + base + foundation to place a traditional card model castle, for instance.
__________________
Currently designing:
* Focke-Wulf VTOL [progress: temporarily shelved]
* Heinkel HE P.1080 [progress: struggling to make the assembly instructions]
http://cutfoldpaste.blogspot.com/
Reply With Quote
Reply

Tags
model, 123d, make, target, medium, parts, application, thought, obj, sheets, thick, laser, low, metaseq, cardboard, poly, me-328, cutter, program, setting, 0.33mm, fortunately, details, satisfied, overboard

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 05:43 AM.


Powered by vBulletin®
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Resources saved on this page: MySQL 9.52%
Parts of this site powered by vBulletin Mods & Addons from DragonByte Technologies Ltd. (Details)
Copyright © 2007-17, Paper Modelers.com