After 3 to 4 months of redesigning the workshop to maximise the floor space, building new tables and work benches the new Northant's 'Zenith Factory' is back open ready for business!
I have made a new vacuum pump from an old fridge freezer which is silent running so leaks in the bag can be identified easier, this was trialed this evening with fantastic results.
The moulds sit on the bench on top of a polythene sheet, the breather cloth is then draped over the moulds. Mastic sealant is then piped around the edges of the polythene sheet, this will act as the adhesive and seal for the top layer of vacuum bagging material from R&G.
The air inlet nipple is fixed to the centre of the top vacuum sheet, the whole part of the top bag is then rolled onto a long hollow tube. Starting at one end the top sheet is rolled off, this allows for the perfect alignment with the sealant and a great seal as the top sheet is less likely to 'double over'.
Once in place all that is needed is to press the two surfaces together at the seems, connect the vacuum pump and hey presto!
No comments:
Post a Comment