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Eddie Walsh
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Group: Forum Members
Posts: 52,
Visits: 294
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Hi I have been looking at this Air Box and trying to figure out how I can Vaccum Bag ??? to me looks impossible, so any help appreciated, Regards DM
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Steve Broad
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Group: Forum Members
Posts: 408,
Visits: 4.1K
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+x+xA bit like this.  Hi Steve Thanks, I can see your mould has an opening on top, but is the other end also open like mine?? Regards DM Yes, it's my intake tube to the turbo. There is now a flange on the rectangle end to connect to the next section and a flange to bolt to the turbo. 
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Eddie Walsh
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Group: Forum Members
Posts: 52,
Visits: 294
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+x+x+xA bit like this. Hi Steve Thanks, I can see your mould has an opening on top, but is the other end also open like mine?? Regards DM Yes, it's my intake tube to the turbo. There is now a flange on the rectangle end to connect to the next section and a flange to bolt to the turbo. Hi Steve, Thanks, so was the rectangle end of your Mould blanked off for Vacuum bagging and then when released from mould you cut out the rectangle end, is that correct, again Thanks for your help, Regards DM
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Steve Broad
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Group: Forum Members
Posts: 408,
Visits: 4.1K
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+x+x+x+xA bit like this. Hi Steve Thanks, I can see your mould has an opening on top, but is the other end also open like mine?? Regards DM Yes, it's my intake tube to the turbo. There is now a flange on the rectangle end to connect to the next section and a flange to bolt to the turbo. Hi Steve, Thanks, so was the rectangle end of your Mould blanked off for Vacuum bagging and then when released from mould you cut out the rectangle end, is that correct, again Thanks for your help, Regards DM No, both ends were open and the bag was pushed in both ends and met in the middle.
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Eddie Walsh
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Group: Forum Members
Posts: 52,
Visits: 294
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+x+x+x+x+xA bit like this. Hi Steve Thanks, I can see your mould has an opening on top, but is the other end also open like mine?? Regards DM Yes, it's my intake tube to the turbo. There is now a flange on the rectangle end to connect to the next section and a flange to bolt to the turbo. Hi Steve, Thanks, so was the rectangle end of your Mould blanked off for Vacuum bagging and then when released from mould you cut out the rectangle end, is that correct, again Thanks for your help, Regards DM No, both ends were open and the bag was pushed in both ends and met in the middle. I Steve, I still cannot see how you can push one end of a bag in one end of your mould and the other end of your bag in the other end of your mold and have them meet in the middle, as far I can see when you Vacuumed your bag it would just colapse on it self so no pressure on the Molding ???Regards DM
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Steve Broad
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Group: Forum Members
Posts: 408,
Visits: 4.1K
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+x+x+x+x+x+xA bit like this. Hi Steve Thanks, I can see your mould has an opening on top, but is the other end also open like mine?? Regards DM Yes, it's my intake tube to the turbo. There is now a flange on the rectangle end to connect to the next section and a flange to bolt to the turbo. Hi Steve, Thanks, so was the rectangle end of your Mould blanked off for Vacuum bagging and then when released from mould you cut out the rectangle end, is that correct, again Thanks for your help, Regards DM No, both ends were open and the bag was pushed in both ends and met in the middle. I Steve, I still cannot see how you can push one end of a bag in one end of your mould and the other end of your bag in the other end of your mold and have them meet in the middle, as far I can see when you Vacuumed your bag it would just colapse on it self so no pressure on the Molding ???Regards DM Yeah, I thought that at first, but it actually works :-) You suck the air out of the volume between the bag and the mould, regardless of what side the bag is. The air between the bag sections pushed into the openings is inside the bag so it is sucked out. Trust me, it works :-)  
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Eddie Walsh
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Group: Forum Members
Posts: 52,
Visits: 294
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+x+x+x+x+x+x+xA bit like this. Hi Steve Thanks, I can see your mould has an opening on top, but is the other end also open like mine?? Regards DM Yes, it's my intake tube to the turbo. There is now a flange on the rectangle end to connect to the next section and a flange to bolt to the turbo. Hi Steve, Thanks, so was the rectangle end of your Mould blanked off for Vacuum bagging and then when released from mould you cut out the rectangle end, is that correct, again Thanks for your help, Regards DM No, both ends were open and the bag was pushed in both ends and met in the middle. I Steve, I still cannot see how you can push one end of a bag in one end of your mould and the other end of your bag in the other end of your mold and have them meet in the middle, as far I can see when you Vacuumed your bag it would just colapse on it self so no pressure on the Molding ???Regards DM Yeah, I thought that at first, but it actually works :-) You suck the air out of the volume between the bag and the mould, regardless of what side the bag is. The air between the bag sections pushed into the openings is inside the bag so it is sucked out. Trust me, it works :-) Hi Steve,I trust you, but as you say I still cannot see it, so if you are right then with my Airbox with 3 openings I do not have to blank off the openings just stuff the bag through the rectangle one and push it through the other two then pull the other end of the bag right over my Mould to the end with the two openings and seal it off, vacuum and let it cure, so again Thanks for all your help and patience, Regards DM
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Steve Broad
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Group: Forum Members
Posts: 408,
Visits: 4.1K
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+x+x+x+xA bit like this. Hi Steve Thanks, I can see your mould has an opening on top, but is the other end also open like mine?? Regards DM Yes, it's my intake tube to the turbo. There is now a flange on the rectangle end to connect to the next section and a flange to bolt to the turbo. Hi Steve, Thanks, so was the rectangle end of your Mould blanked off for Vacuum bagging and then when released from mould you cut out the rectangle end, is that correct, again Thanks for your help, Regards DM No, it was left open and the bag pushed in from both ends. I added the turbo flange (as it has an internal trumpet so not possible to make in one piece) and flange.  
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Eddie Walsh
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Group: Forum Members
Posts: 52,
Visits: 294
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+x+x+x+x+xA bit like this. Hi Steve Thanks, I can see your mould has an opening on top, but is the other end also open like mine?? Regards DM Yes, it's my intake tube to the turbo. There is now a flange on the rectangle end to connect to the next section and a flange to bolt to the turbo. Hi Steve, Thanks, so was the rectangle end of your Mould blanked off for Vacuum bagging and then when released from mould you cut out the rectangle end, is that correct, again Thanks for your help, Regards DM No, it was left open and the bag pushed in from both ends. I added the turbo flange (as it has an internal trumpet so not possible to make in one piece) and flange. I Steve, I still cannot see how you can push one end of a bag in one end of your mould and the other end of your bag in the other end of your mold and have them meet in the middle, as far I can see when you Vacuumed your bag it would just colapse on it self so no pressure on the Molding ???Regards DM
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Steve Broad
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Group: Forum Members
Posts: 408,
Visits: 4.1K
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+x+x+xA bit like this. Hi Steve Thanks, I can see your mould has an opening on top, but is the other end also open like mine?? Regards DM Yes, it's my intake tube to the turbo. There is now a flange on the rectangle end to connect to the next section and a flange to bolt to the turbo. No, that is how it came out of the vacuum bag. I then made the flange using wet lay carbon. Not as pretty as doing in prepreg but a little filler and sanding and it looks fine. The flange is also under the radiator so can't be seen :-) I didn't form the flange first off as I didn't know what angle it would have to be until I had this piece fitted to the turbo.
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