Introduction: Hand Powered Vacuum Chamber V.2
After the first version, I was running out small yogurt containers to use and the larger pots would not fit into it.
So when I came across this Ice bucket at a car boot sale and being larger, bigger and much more stronger than previous acrylic tube, I thought it would be a perfect upgrade.
Materials used: (Please see version one for links to some of the common materials used)
- Double walled Ice bucket (I believe it is made of strong acrylic material)
- Nozzle of a silicone sealant
- Base for the ice bucket (any flat, smooth, strong material with at least 3mm thickness will do)
- Silicone rubber
- suction pump
- one way valve
- Clear PVC tubing
- Circular grill (as a container for the silicone rubber)
- scalpel knife
- Dremel drill with cutting and drilling bits
- Tapered reamer
- small torch flame
- Pair of scissors
CAUTION: When operating electrical equipment, always follow manufacturers safety instructions to protect yourself from possible accidents.
Step 1: Modification
I drilled a hole for the silicone nozzle and again, the ever useful tapered reamer came real handy.
Step 2: New Base
Because this was a much bigger container, I had a little bit difficulty finding a base for it. In the end managed to find this copper plate tucked away in my shed that I got for pennies from a carboot of previous years. Its diameter was larger than that of the bucket opening which was exactly what I was after. So now I had to create some kind of air tight barrier between it and the ice bucket. To do that I thought of using silicone rubber that I already had and the next task was to create a circular wall to pour the silicone rubber into.
As it happens, I had this circular metal mesh ring that my workplace chucked away when they've upgraded the light fixtures. Because it was few cm's too big, I cut the excess with a dremel and joined it with an aluminium insulation tape.
Step 3: Ready for the Silicone Rubber
After securing everything in place, mixed and poured in the silicone rubber.
Step 4: The Result
All looking good!
Step 5: Video Demonstration