We glued the last ring frame on EDB laminated yesterday, vacuumed the ring frame at stern and coved the other ones.
The laminating yesterday was well done checkin this morning. Peeling some peel ply off set the last ring frame up. We sanded around the ring frames to get rid of drops of glue, to make mechanical bonding and to get rid of lumps. Sand thoroughly but not too deeply especially on the glass and foam.
Extending glue sticks
We sliced a foam to make wedges to fill the gap mentioned above because it is not a good idea to fill the gap with only epoxy for many reasons. This is a temporary jig and we can see the table is slightly declined.
Chris demonstrated where the vac tape has to be put on. The line shown is sheer and the part above will be cut off. Carbon uni and EDB goes on right below the line, which is 50mm above the tip floors.
Stack sequence which helps us not to confuse, which has materials and sequence wrttien on it. Some simple sketches are on it as well.
cut the vacuum bag, put it on. It is rolled and folded in a width direction so it is quite big when being unfolded.
Put some short hoses up on the manifold. Roll the vac tape around each mouth, push the hose into the mouth, done. These hoses are for blocking the leakage.
From left side, Auto/Manual switch, timer(when selecting Auto or Manual for keeping the vacuum until the power off), start/stop button, main power on/off switch.
This might be a pan of excess glue or something useless through the hose.
We use the longest one on the bottom. There are rings in green hose not to shrink the hose and the white one is narrow and thick enough to bare 1 ATM bar.
EDB goes on. 40mm on each side of ring frame is lap. We marked only one side and if the cutting is done well, it will be OK. The tip ringframe doesn't need the glass as much as the rest of its part needs so trim it off. Vac tape is already on.
peel ply, perforated release film(PRF), bleeder, vacuum bag which are cut in proper dimension. We used bleeder instead of wind break.
and bleeder which feels like cotton goes on it. One reason that we cover PRF on the peel ply is not to stick the peel ply and bleeder up. It helps glue to migrate evenly.
Final shot today
No pencil on aluminum, which contaminates it but ink or China something(like crayon) is alright for marking.
Waxing has to be done properly otherwise the vac tape stuck on the surface which is no no.
vacmobiles.com
stack sequence
One critical disadvantage of wind break is that it doesn't allow us to see how the resin migrates(progress)
The laminating yesterday was well done checkin this morning. Peeling some peel ply off set the last ring frame up. We sanded around the ring frames to get rid of drops of glue, to make mechanical bonding and to get rid of lumps. Sand thoroughly but not too deeply especially on the glass and foam.
Extending glue sticks
The foam coudn't twist much to follow the shape at bow so that made a big gap on hinge point.
Chris added to coat of waxing on MDF for laminating.
We sliced a foam to make wedges to fill the gap mentioned above because it is not a good idea to fill the gap with only epoxy for many reasons. This is a temporary jig and we can see the table is slightly declined.
a huge gap
The wedge was a bit bigger than what it had to be so we cut some off with using bandsaw.
Mark a line, cut it.
nice filling
Measuring the length of the ringframes to cut carbon uni. What if we measured on the ring frames?
Chris demonstrated where the vac tape has to be put on. The line shown is sheer and the part above will be cut off. Carbon uni and EDB goes on right below the line, which is 50mm above the tip floors.
Stack sequence which helps us not to confuse, which has materials and sequence wrttien on it. Some simple sketches are on it as well.
cut the vacuum bag, put it on. It is rolled and folded in a width direction so it is quite big when being unfolded.
Put the vac tape on pleats.
Put some short hoses up on the manifold. Roll the vac tape around each mouth, push the hose into the mouth, done. These hoses are for blocking the leakage.
Fold like this picture, clamp them.
shut down switch(emergency?)
Vacuum pump. The tube on the left side is an oil pump for lubrication.
From left side, Auto/Manual switch, timer(when selecting Auto or Manual for keeping the vacuum until the power off), start/stop button, main power on/off switch.
This might be a pan of excess glue or something useless through the hose.
Cutting carbon uni with using straight edge on a nice and flat table or even on cardboard on it.
Minimise the offcuts by economical considering.
cut EDB for today as well
We use the longest one on the bottom. There are rings in green hose not to shrink the hose and the white one is narrow and thick enough to bare 1 ATM bar.
prewet ADR, mind the vac tape.
CU on
EDB goes on. 40mm on each side of ring frame is lap. We marked only one side and if the cutting is done well, it will be OK. The tip ringframe doesn't need the glass as much as the rest of its part needs so trim it off. Vac tape is already on.
take your time
peel ply, perforated release film(PRF), bleeder, vacuum bag which are cut in proper dimension. We used bleeder instead of wind break.
cover the peel ply on
on going
do the perforated release film
and bleeder which feels like cotton goes on it. One reason that we cover PRF on the peel ply is not to stick the peel ply and bleeder up. It helps glue to migrate evenly.
Put the vacuum bag on vac tape peeled the cover off.
Vacuum on. The resin gone through the holes of PRF to bleeder looks like spot which grows up.
We finished coving the ring frames we didn't do yesterday.
Final shot today
No pencil on aluminum, which contaminates it but ink or China something(like crayon) is alright for marking.
Waxing has to be done properly otherwise the vac tape stuck on the surface which is no no.
vacmobiles.com
stack sequence
One critical disadvantage of wind break is that it doesn't allow us to see how the resin migrates(progress)
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