^^^^ and there is the huge advantage of CNC
That is hard to do manually and requires filler in your boo-boos
What board?
Think thats an 'All Aboard'. Mistral in the background though.
What board?
Think thats an 'All Aboard'. Mistral in the background though.
I can't see no board
There is a gent in Germany going by the call sign of Fredstyles who has been building my board designs for quite a number of years, probably built 4 or 5 of them. I gave him my latest CAD for a freewave board which is new version of my Atomicsurf Fusion which he is about to finish for himself and having done such an amazing job I jokingly said to him...."that's awesome, you should build me one" He said he would love to .....so its happening.
Below the carbon board is the one he has built for himself, I believe there is still a layer ST Carbon to go on. Its a 90 litre freewave...my new version of the Fusion 60 based on the leanings from my Masterblaster boards. The foam is my board which is a slightly tweaked version of the same. I will do an S glass bottom.
If you want I will post photos as he sends them to me. It's an after-hours labour of love for him so could take a while.
Truly more board building strings. Be that as it may, no mystery we as a whole offer our layups and so forth on here.
I haven't heard from Fred in a while, will give him a yell. The agreement was it was a 'do it when you have time" project.
I wanna know how he builds a carbon mast track
I also would love to know. There would have to be some amazing time consuming engineering going on if they were laminated in a T shape . A normal plastic mast track and vent combo is pretty light compared to its strength . I could easily machine a mast track from a block of something super light and strong but I wouldn't know what that block would be . Some sort of fibre reinforced airated resin ???
Those pics don't give anything away . All I see is a super thin layer of something black over a four piece of foam .
Could be a normal plastic everyday box routed into 80 kg foam with a layer of carbon over the top , ready to be radioused and dropped onto a hole .
Still , I'd love it to be a laminated box
I wanna know how he builds a carbon mast track
I also would love to know. There would have to be some amazing time consuming engineering going on if they were laminated in a T shape . A normal plastic mast track and vent combo is pretty light compared to its strength . I could easily machine a mast track from a block of something super light and strong but I wouldn't know what that block would be . Some sort of fibre reinforced airated resin ???
Those pics don't give anything away . All I see is a super thin layer of something black over a four piece of foam .
Could be a normal plastic everyday box routed into 80 kg foam with a layer of carbon over the top , ready to be radioused and dropped onto a hole .
Still , I'd love it to be a laminated box
Must be a split mould then joined and reinforced or what? Is that also a carbon US box?
I wanna know how he builds a carbon mast track
I also would love to know. There would have to be some amazing time consuming engineering going on if they were laminated in a T shape . A normal plastic mast track and vent combo is pretty light compared to its strength . I could easily machine a mast track from a block of something super light and strong but I wouldn't know what that block would be . Some sort of fibre reinforced airated resin ???
Those pics don't give anything away . All I see is a super thin layer of something black over a four piece of foam .
Could be a normal plastic everyday box routed into 80 kg foam with a layer of carbon over the top , ready to be radioused and dropped onto a hole .
Still , I'd love it to be a laminated box
Must be a split mould then joined and reinforced or what? Is that also a carbon US box?
USbox is just as complicated .
Im thinking plastic under carbon fasard.
I want to be wrong .
Teach me Obione .
Fred has been able to start work again on the board and has built the boxes.
Great work!
I think I know how he's building the mast track, maybe a 3 piece romovable mandrill type set up??
Those Slot Boxes look really good, although there's one thing that concerns me. They look like they'll go all the way through the board. With multi fin boards the box often ends up directly under the back foot. If you have solid PVC all the way through you'll have the back foot forcing the fin box through the bottom of the board.
I'd suggest the PVC around the fin box should only be 30mm deep.
^^^^yup
and I am making my slot boxes at 30mm = same as US and mast tracks, so I don't move the router depth ever
OK.....Fred uses a sacrificial mould insert for his US boxes but he did not say what material. perhaps a machinable wax?
Hoop...the PCV blocks will not go right through on the slot boxes.
Thanks Martin
I used sacrificial clay on my cnc exhaust manifold (dust shoe). Pain in the rear to clean off afterwards. Needs to be something that can be dissolved to make the job easy.
Or blasted out with pressure (not too much!)
Someone asked about the type of files. I have used Shape3D and had blanks cut. I sent the DXF files. Dont know if this is always the case but I have had a few things CNC cut 2D and 3D. They always asked for DXF files.
I also have a question about trimming the airex stage. I am building a SUP, OK its not a windsurfer but a board build is a board build. I want to put airex on the bottom of the board and wrap it up around the rails. I see in the pic he has just put too wide a piece of airex and trimmed it back. Has he put tape or something so it doesnt stick or do you just sand it back.
What density foam is the blank and what pressure is he using when bagging. Is he using epoxy to glue the high density foam to the blank.
OK that was more than a question.
Sorry tarquin but I cannot answer a lot of those questions. I don't build boards just design them. There are some expert board craftsman involved in this thread such as Hoop and Rider who should be able to answer.
As far as files go this board was designed in Alias and I released an Iges file to Fred. Not sure what he is using to drive his NC but it can read Iges nurbs surface. The issue I am having is that there are very few board cutters that have software that can read Nurbs and I am having to use Shape 3D to create the boards. I will most likely to continue to do my initial design in Alias then bring an STL file into Shape 3D and use as a ghost board to trace. I am finding I can get the board very, very close to the original Alias file quite easily. More work for me but I like having the Nurbs surface as i can use it to do renders and animations in softwares like Vred. Also for the boards that James at Carbonart builds he machines a bottom shim to vacuum on to. The person who does that for him can read Iges files. I like to do this in Alias as the surface accuracy is superb and he can then machine a very accurate shim which will ultimately dictate the bottom shape.
Someone asked about the type of files. I have used Shape3D and had blanks cut. I sent the DXF files. Dont know if this is always the case but I have had a few things CNC cut 2D and 3D. They always asked for DXF files.
I also have a question about trimming the airex stage. I am building a SUP, OK its not a windsurfer but a board build is a board build. I want to put airex on the bottom of the board and wrap it up around the rails. I see in the pic he has just put too wide a piece of airex and trimmed it back. Has he put tape or something so it doesnt stick or do you just sand it back.
What density foam is the blank and what pressure is he using when bagging. Is he using epoxy to glue the high density foam to the blank.
OK that was more than a question.
Do you have to use airex?
corecell is easier to form around rails
I'm not the expert, but here is my thread from last year that shows enough of the stages. www.seabreeze.com.au/forums/Windsurfing/General/Not-another-board-build-thread---?page=1
You will need a rocker spine like you see in my thread, but as a SUP is so big and the blank so light it can still want to move and the width enables it to twist when bagging it. Thus I would fully shape the board (unlike my WS board where the top is unshaped when bottom is bagged on) then use carbon tape (wet out on table first) on the rails. Then when bagging the bottom on, the rails are stiffened and the rocker spine keeping it straight.
For a SUP, using a wet-out table will be essential to keep the weight down, stryo sucks resin
Oh yes and its epoxy of course
Edit: forgot the pressure. Usually about 14" HG (50kpa) but for a SUP I would drop that down to about 10" to be safe. I use 8" to bag wood onto a surfboard deck and it still draws resin thru the wood....... so its quite a bit.