Cox Engines Forum
You are not logged in! Please login or register! Guests are limited to posting in the "General Questions (Guest Posting Allowed)" section only. Becoming a member is fast, easy and FREE!


Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Cox Engine of The Month
September-2017
Kim's

"Cox Conquest gets a Run-Up."



PAST WINNERS
CEF Traveling Engine

Tach Race 2017 Updates
Ready for Tach Race 2017?
Profile Scale Reed Speed
Gallery


Win This Engine!
The Traveling Prop
World of Aviation

question about vacuum forming

View previous topic View next topic Go down

question about vacuum forming

Post  akjgardner on Sat Feb 27, 2016 7:11 pm

So I got my vacuum forming box built. does anyone know what kind of plastic I use to form a canopy. Also the best place to buy it. Thanks for the help
avatar
akjgardner
Platinum Member
Platinum Member

Posts : 727
Join date : 2014-12-28
Age : 58
Location : Milan Indiana

View user profile

Back to top Go down

Re: question about vacuum forming

Post  Ken Cook on Sat Feb 27, 2016 8:29 pm

My last two canopies I formed from soda bottle plastic. I also have used clear acetate which was .030". Unfortunately, I lost my source as the hobby shop I used to frequent has since closed. I had very good success using the soda bottle plastic.
avatar
Ken Cook
Diamond Member
Diamond Member

Posts : 2772
Join date : 2012-03-27
Location : pennsylvania

View user profile

Back to top Go down

Re: question about vacuum forming

Post  andrew on Sun Feb 28, 2016 12:36 am

Look into .020 and .030 Vivak or PETG sheet. USPlastic.com is a good starting point, but a search on Vivak or PETG will give lots of hits.
avatar
andrew
Diamond Member
Diamond Member

Posts : 1220
Join date : 2011-08-11
Age : 69
Location : Western Kentucky

View user profile http://web2.murraystate.edu/andy.batts/ps/POWERSUPPLY.HTM

Back to top Go down

Re: question about vacuum forming

Post  1/2A Nut on Sun Feb 28, 2016 1:02 am

I had a friend who owned a vacuum forming company he allowed me time on the machines and would make hard wood plugs for outrigger hydros and mono race boats.

Depending on the thickness of the ABS plastic back in the day you could make robust enough boats to handle 20 to 60 size
engines. These days with light RC gear you could make shapely fuselages for .010 thru .15 size cox engines.

avatar
1/2A Nut
Platinum Member
Platinum Member

Posts : 1126
Join date : 2013-10-20
Age : 54
Location : Texas

View user profile

Back to top Go down

Re: question about vacuum forming

Post  akjgardner on Sun Feb 28, 2016 4:33 am

Thanks for the help guys
avatar
akjgardner
Platinum Member
Platinum Member

Posts : 727
Join date : 2014-12-28
Age : 58
Location : Milan Indiana

View user profile

Back to top Go down

Re: question about vacuum forming

Post  getback on Sun Feb 28, 2016 7:25 am

Well I just spent 10 mins. watching a guy make a vacuum forming machine (homemade style) it was pretty interesting . Don't look to much trouble but I am sure there is a easier way to just do a couple pieces . Like to see yours if anyone will fun me . Eric Babe Bee .049
avatar
getback
Top Poster
Top Poster

Posts : 4165
Join date : 2013-01-18
Age : 60
Location : julian, n.c.

View user profile

Back to top Go down

Re: question about vacuum forming

Post  Marleysky on Sun Feb 28, 2016 10:40 am

There was a u tube video of a guy who was using the cheep plastic dinner plates from the dollar store. Cut them into a 10" square, put it in a square frame with clamps, heated it over the gas stove burner then slapped it on to the vac former box, and whamo there's your part!
avatar
Marleysky
Diamond Member
Diamond Member

I Support My Forum

Posts : 1313
Join date : 2014-09-28
Age : 64
Location : Grand Rapids, MI

View user profile

Back to top Go down

Re: question about vacuum forming

Post  PeterJGregory on Sun Feb 28, 2016 4:47 pm

Keep us posted on progress. I was driving around today with the thought of making a vacuum forming system, myself.

Craft stores like Michaels and Hobby Lobby carry sheets of plastic I have used for model airplane windscreens. I live right near a HL so I can stop in each day and use the online 40% off coupon. I just pop it up on my phone as I pull into the parkint lot. Much plastic materials are themoplastics and can suit the job. A few pennies will tell you quickly whether it behaves well under heat.

avatar
PeterJGregory
Gold Member
Gold Member

Posts : 116
Join date : 2014-07-28
Age : 54
Location : Hudson Valley, New York

View user profile

Back to top Go down

Re: question about vacuum forming

Post  akjgardner on Sat Mar 05, 2016 5:03 pm

url=https://servimg.com/view/19124486/89][/url]    waiting on some plastic sheets. still have to rig up something to heat it with. also making a form from my house of balsa p 39 canopy and turtle deck.
avatar
akjgardner
Platinum Member
Platinum Member

Posts : 727
Join date : 2014-12-28
Age : 58
Location : Milan Indiana

View user profile

Back to top Go down

Re: question about vacuum forming

Post  PeterJGregory on Sat Mar 05, 2016 6:05 pm

This is the heat system I think I will go with, system starts about half way thru 10 min video..

https://www.youtube.com/watch?v=maH5Ech0wK8


avatar
PeterJGregory
Gold Member
Gold Member

Posts : 116
Join date : 2014-07-28
Age : 54
Location : Hudson Valley, New York

View user profile

Back to top Go down

Re: question about vacuum forming

Post  Sponsored content


Sponsored content


Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum