shringage after vaccum


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KOSTAS
KOSTAS
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f1rob - 9/5/2018 8:30:38 PM
Dosent matter how big you make your bag or how careful you vac down it will never pull down symmetrically, there will always be resistance from one point or another
If your bagging somthing that can move or flex then it will !
Brake drums on the f1 cars are made with lots of printed formers now. 
What they tend to do is on the open end they print it with 6mm holes
You then have a plate with pins on the correct centres that you push into the holes then bag the whole lot up 


I would be really interested to  see any kind of picture if avialiable to have a better understanding , thanks

f1rob
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Will be in big trouble if I photograph these !!!!
For example
From the centre of 1 fork end to the other is say 150mm
When you print your fork at the ends in the exact centre of each you print your 6mm hole
You have a plate with 2 6mm studs pr bolts protruding with the centres at 150mm
Push the 2 studs into your printed holes
Your part is held at the right centre during cure
Once at room temp remove plate/studs
f1rob
f1rob
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Unless I'm looking at your pic really funny you have your job across the bag ???
Just run your job along the bag an cut your bag a lot longer
KOSTAS
KOSTAS
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f1rob - 9/6/2018 8:25:28 PM
Unless I'm looking at your pic really funny you have your job across the bag ???Just run your job along the bag an cut your bag a lot longer

Yes you are right , i was a lot stingy with my consumables ... and i learned that in order to save small you spend big .
That was  exactly what i had in mind  , i just finished redesigning  my forks  (chainstay and seatstay ) and a support rod to hold the legs in place .
Unfortunately i have the chance to work only on weekends  , so mid week is desing and print only . I will post again as soon as i have a new result .Thanks for the feedback.

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