Go Back   EcoModder Forum > EcoModding > Aerodynamics
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 05-12-2010, 07:10 AM   #11 (permalink)
EcoModding Apprentice
 
Bicycle Bob's Avatar
 
Join Date: May 2008
Location: N. Saskatchewan, CA
Posts: 1,521

Appliance White - '93 Geo Metro 4-Dr. Auto
Last 3: 42.35 mpg (US)

Stealth RV - '91 Chevy Sprint Base
Thanks: 72
Thanked 298 Times in 209 Posts
Another way to get a fold in Coroplast is to run a bead of hot glue along the line. A straightedge can help guide the gun. The glue softens the Coroplast to let it bend, and then holds the angle, after some relaxation.
You can also get smooth curves, with the grain or somewhat obliquely, by slitting the inside skin in the area of the bend. I usually blunt the tip of a disposable blade for fast, easy slitting. Use it at an angle, so the cut edges will ride over each other. Stiffness can be restored by framing, or much increased by a second layer, glued on with beads of silicon seal.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 05-12-2010, 04:34 PM   #12 (permalink)
EcoModder
 
Join Date: Jul 2008
Location: North Central Alabama
Posts: 569

Big Salsa - '04 Toyota Sienna LE

Silver - '10 Toyota Prius III
Thanks: 108
Thanked 116 Times in 67 Posts
Quote:
Originally Posted by Bicycle Bob View Post
Another way to get a fold in Coroplast is to run a bead of hot glue along the line. A straightedge can help guide the gun. The glue softens the Coroplast to let it bend, and then holds the angle, after some relaxation.
You can also get smooth curves, with the grain or somewhat obliquely, by slitting the inside skin in the area of the bend. I usually blunt the tip of a disposable blade for fast, easy slitting. Use it at an angle, so the cut edges will ride over each other. Stiffness can be restored by framing, or much increased by a second layer, glued on with beads of silicon seal.
How long of a bend can you do that way? I imagine that the coroplast and hot glue will cool rather quickly, so I doubt a full 4' bend could be made, maybe I am wrong. I know that Basjoos has used a heat gun to warm the inside of the bend, and seems happy with the results. I think OrangeBoy has used a method of crushing the coroplast in a line to make bends. I am with you, I score the inside (cut through the innermost layer) and make the bends. The coroplast does lose strength, but the bend adds it back.
__________________
  Reply With Quote
Old 05-12-2010, 07:33 PM   #13 (permalink)
EcoModding Apprentice
 
Bicycle Bob's Avatar
 
Join Date: May 2008
Location: N. Saskatchewan, CA
Posts: 1,521

Appliance White - '93 Geo Metro 4-Dr. Auto
Last 3: 42.35 mpg (US)

Stealth RV - '91 Chevy Sprint Base
Thanks: 72
Thanked 298 Times in 209 Posts
4' would be a fairly long crease with hot glue, even with two hot guns to start with. For a crease across the grain, I don't cut all the way through - I just use a blunt tool with maybe a 1/8" end diameter (3mm) to make a crease that the material will follow easily. Such a groove makes a good guide for the tip of a glue gun or a small, just-lit torch flame. Hot glue or silicon can be added after the initial folding, too. The creases don't need to be straight, either.

  Reply With Quote
Reply  Post New Thread


Tags
boat tail, coast down, sedankamm, suzuki swift

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Suzuki Swift (1994 sedan) Coast Down Numbers wyatt Aerodynamics 18 11-24-2009 05:03 AM
The Suzuki Swift is still a super sweet car! SVOboy General Efficiency Discussion 15 11-22-2009 12:17 PM
SUZUKI - Bring the Swift to the States!! FunkSkunk EcoModding Central 11 10-19-2008 11:41 PM
92 Suzuki Swift Project Roman EcoModding Central 42 08-25-2008 09:38 PM
Opinions: CRX HF, Honda Insight or Keep Suzuki Swift? dunhamjr General Efficiency Discussion 17 06-18-2008 06:14 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com