| Hangar |
Aircraft |
Category |
Date |
Preview |
| rayl | Scratch Built Consolidated XF-92A | Build | 29-Jan-15 12:27 |  | | Views : 984 | | This is a shot of how the bottle is shrinking when I'm about half-way through the process. I keep pushing teh form up as the plastic shrinks. The bar is a piece of 1/4' X 1" aluminum and it does deflect during the process. Start applying the heat BELOW the master to keep wrinkles from forming and to insure even shrinking around the master. |
| rayl | Scratch Built Consolidated XF-92A | Build | 29-Jan-15 12:23 |  | | Views : 1009 | | Here the canopy master has been inserted into the bottle and the caulk gun used to put tension on the bottle prior to beginning to heat the plastic. |
|
| Hangar |
Aircraft |
Category |
Date |
Preview |
| rayl | Scratch Built Consolidated XF-92A | Build | 29-Jan-15 12:21 |  | | Views : 941 | | THis is the top side of the rig. The piece od aluminam strap is to keep tension on the 2 liter bottle as the forming process progresses. I ussed a a couple 1/2" X 20 carriage bolts with wing nuts to allow for easy removal and installation. See how the (open-ended) bottle is clamped to the ply? |
| rayl | Scratch Built Consolidated XF-92A | Build | 29-Jan-15 12:17 |  | | Views : 988 | | I thought that I would share a method for forming canopies (or any other shape that you might want to mould) out of a 2 liter softdrink bottle. This is the apparatus that I duplicated from "ModelMaster 2001" over on the RC Groups forum. It is a el-cheapo caulk gun mounted to a piece of 3/4" ply. I shortend the caulk gun body by about 4 inches to make sure that I had enough stroke to keep the form tight to the plastic when heat is added. |
|
