Ok, I had a win!
Currently my new favorite home appliance is the humble kitchen oven
According to internet sources (and we know they must be true
), putting the whole piece into an oven is the way to go. Apparently 220F (approx 100C) is the melting point for most acrylic (although type and thickness makes a difference to temp required).
I was unable to find how long the piece should be left in the oven for - so it was a trial and error process.
First I decided to attempt to fix the existing duct I made few days ago.
Its shape is far from perfect and I was hoping to smooth it out.
Got some plumbing supplies to make new template - the first one melted a bit when I made the first cylinder with heat gun
I put them together with masking tape from the inside.
I put more tape on the outside to reduce possibility of scratching of acrylic and to make it easier to slide the cylinder off once it has cooled down
The 'before' shot - you can clearly see how misshaped the cylinder is.
Ready to 'cook' - I put baking paper under the acrylic to stop it from reacting to bare metal of the baking tray
First I set oven to 65c - nothing
85c - it started to loose shape slowly after approx 5 mins.
I had only few seconds during which I had to remove the piece from the oven, slide it over the template and then HUG it!.
Yeah, hug it as much as possible to force change of shape - I was getting very warm very quickly!
Here is the outcome - perfect.
More to come very shortly - the second cylinder from scratch!