iMack

Cheers guys. 
 
@micahel: The chemiwood is much denser and slightly less accurate than the foam. The reason is the spindle when cutting tends to vibrate and leave a bad edge - whilst the foam is much softer. The machine is generally accurate to 0.1 of a mm. 
 
It's been easter break so I had some time off. This week I've been back at it working double time to catch up. I have designed and printed the keel along with the dual rudders. Deck has been re-laser cut and finally fits perfectly. I have had the boom 3d printed (first on a FDM plastic printer - the kind that splurges out plastic from a nozzle - and then the final with an SLA printer. It cures liquid resin with a laser) and soon ready to assemble. 
 
Preparing for a quick primer spray. 3D printed keel with a 8mm hole ready for a tapped hardened steel rode go through and into the hull for extra support. I will have the model sitting on it's keel on the base
 

 
 
3D printed boom tester piece just attached with a piece of elastic. Carbon fibre mast has been added and placed. The mast is hollow but I've filled it with a resin to help give it that extra strength. Also means when the boom is attached I can insert steel rods attaching it to the mast. Black vinyl has been laser cut and just placed on the windows. Won't glue them in until the paint job has been done. 
 

 
View from the under side. Twin rudders placed and holes drilled. Reinforced again with metal rods. Start of the rudder is in the works in this image as well. 

 
A side perspective of the yacht. Those hatches are looking spot on finally! I'm enjoying the elegant design of this yacht. I'll be going for the same colour scheme as I've done in the computer renders. You can just seem the in the image below. 

 
How she is looking at the moment. 

 
 
Cheers,
Iain 

So I've had a chance to fill and sand the most part of the model. I've done a first coat of primer to check for any missed area. Fair to say there is still plenty more sanding needed. Double sided together at the moment. Next job after sanding is to search for some metal rods which will help brace the keel. 
 

 

 

 

In the process of creating a 1:40 scale model of the oyster 885 for my university project. I've been working from some rather basic plans but I feel I've achieved to get the shape close enough. I was busy the past few weeks modelling it up on CAD and have it running on the CNC machine at the moment. Blue foam tester below. 
 

 

 

 

 

Whilst this CNC is busy maching the parts it leaves me free (for the most part) to work on more detail on the CAD model. Here's what she looks like at the moment. Modelled in Rhino3D and rendered in Keyshot. I'm hoping to use these as part of my portfolio along with an animation of her sailing somewhere in the caribbean. I'll get that done closer to the time. I have a few more images of the CNC process which I'll get up soon once they come off the machine. 
 
If anyone is interested I generally keep my blog/journal page up to date on uni projects and there are some high-res images thrown up there too. 
www.imacke.com
 
Cheers
 

 

 

 

Some good progress has been made on parts across the model. There aren't many visible changes but it's cleaning up and getting things prepped. Base work has been a priority so I have measured and cut a 150mm solid block of MDF and clad with acrylic. The edges will be matt and the top surface will be back sprayed acrylic to get a nice reflective finish. Orginally I was going to have a black matt edging with very dark blue water. However I've now decided to do the opposite and go for an off white reflective base and black rim. The reason is the black of the boat under the waterline merges into the dark blue water. The white will have a much better contrast. 
 

 
The steel has been cut to size and tapped. Sits flush into the base now. The metal housing is covered by the acrylic. 

 

 

 

Some good progress has been made on parts across the model. There aren't many visible changes but it's cleaning up and getting things prepped. Base work has been a priority so I have measured and cut a 150mm solid block of MDF and clad with acrylic. The edges will be matt and the top surface will be back sprayed acrylic to get a nice reflective finish. Orginally I was going to have a black matt edging with very dark blue water. However I've now decided to do the opposite and go for an off white reflective base and black rim. The reason is the black of the boat under the waterline merges into the dark blue water. The white will have a much better contrast. 
 

 
The steel has been cut to size and tapped. Sits flush into the base now. The metal housing is covered by the acrylic. 

 

 

 

Beautiful work. Such attention to detail. Very clean and methodical work - looking forward to more updates. 

Some good progress has been made on parts across the model. There aren't many visible changes but it's cleaning up and getting things prepped. Base work has been a priority so I have measured and cut a 150mm solid block of MDF and clad with acrylic. The edges will be matt and the top surface will be back sprayed acrylic to get a nice reflective finish. Orginally I was going to have a black matt edging with very dark blue water. However I've now decided to do the opposite and go for an off white reflective base and black rim. The reason is the black of the boat under the waterline merges into the dark blue water. The white will have a much better contrast. 
 

 
The steel has been cut to size and tapped. Sits flush into the base now. The metal housing is covered by the acrylic. 

 

 

 

Some good progress has been made on parts across the model. There aren't many visible changes but it's cleaning up and getting things prepped. Base work has been a priority so I have measured and cut a 150mm solid block of MDF and clad with acrylic. The edges will be matt and the top surface will be back sprayed acrylic to get a nice reflective finish. Orginally I was going to have a black matt edging with very dark blue water. However I've now decided to do the opposite and go for an off white reflective base and black rim. The reason is the black of the boat under the waterline merges into the dark blue water. The white will have a much better contrast. 
 

 
The steel has been cut to size and tapped. Sits flush into the base now. The metal housing is covered by the acrylic. 

 

 

 

Very nice start. What material have you chosen to CNC? This will be a big model. Look forward to your updates. 

Very nice start. What material have you chosen to CNC? This will be a big model. Look forward to your updates. 

Beautiful work. Such attention to detail. Very clean and methodical work - looking forward to more updates. 

Beautiful work. Such attention to detail. Very clean and methodical work - looking forward to more updates. 

Iain 
I have passed this link on to a friend who works at Oyster in Suffolk at the head office hope fully you will here from him
Andy

Thanks Andrew. That's very kind of you - I really appreciate it. 

I'm hoping to organise a visit soon. I was in contact with them originally to acquire some plans however they refused by request on copyright terms. There was a very good documentary on the BBC last month about the construction of these luxury yachts (sunseeker however). Models of some of the luxury yachts can cost up to £40,000 they mentioned. The documentary was called 'Britain's Biggest Superyachts: Chasing Perfection' if anyone wants a watch. 
 
 
Thanks Michael.
 
 
So an update on the painting situation. I have had to do some emergency repairs. I arrived this morning and some of the paint has reacted with the model. Unfortunately I didn't think of taking a picture at the time before I went away cutting the paint off. All the paint and lacquer I was using is cellulose based so that rules out a chemical reaction. I had wiped down the model before spraying for any grease and dust but perhaps there was some still present. The lacquer naturally pulls very slightly at the model as it sets however this part was very drastic. 
 
This was the effect that had been left. horrible! 

 
All the layers of paint separated from the chemiwood. Including the primer. I just scalpeled off the paint. 

 
Sanding back. I even masked off the area afterwards and some more just peeled off. 

 
Spraying and using a sheet of paper with a hole to create a feathered edge. Merged in quite nicely. It's almost gone. phew.. (some dodgy - yet very effective masking). Used paper along with less masking tape as not to peel off anything else. 

 
aahhhh.. feeling much better now. All I have left to do is another lacquer. I will let the paint fully set over the weekend and do the gloss lacquer on monday.

Beautiful work. Such attention to detail. Very clean and methodical work - looking forward to more updates. 

Beautiful work. Such attention to detail. Very clean and methodical work - looking forward to more updates. 

Thanks Andrew. That's very kind of you - I really appreciate it. 

I'm hoping to organise a visit soon. I was in contact with them originally to acquire some plans however they refused by request on copyright terms. There was a very good documentary on the BBC last month about the construction of these luxury yachts (sunseeker however). Models of some of the luxury yachts can cost up to £40,000 they mentioned. The documentary was called 'Britain's Biggest Superyachts: Chasing Perfection' if anyone wants a watch. 
 
 
Thanks Michael.
 
 
So an update on the painting situation. I have had to do some emergency repairs. I arrived this morning and some of the paint has reacted with the model. Unfortunately I didn't think of taking a picture at the time before I went away cutting the paint off. All the paint and lacquer I was using is cellulose based so that rules out a chemical reaction. I had wiped down the model before spraying for any grease and dust but perhaps there was some still present. The lacquer naturally pulls very slightly at the model as it sets however this part was very drastic. 
 
This was the effect that had been left. horrible! 

 
All the layers of paint separated from the chemiwood. Including the primer. I just scalpeled off the paint. 

 
Sanding back. I even masked off the area afterwards and some more just peeled off. 

 
Spraying and using a sheet of paper with a hole to create a feathered edge. Merged in quite nicely. It's almost gone. phew.. (some dodgy - yet very effective masking). Used paper along with less masking tape as not to peel off anything else. 

 
aahhhh.. feeling much better now. All I have left to do is another lacquer. I will let the paint fully set over the weekend and do the gloss lacquer on monday.

Cheers guys. 
 
@micahel: The chemiwood is much denser and slightly less accurate than the foam. The reason is the spindle when cutting tends to vibrate and leave a bad edge - whilst the foam is much softer. The machine is generally accurate to 0.1 of a mm. 
 
It's been easter break so I had some time off. This week I've been back at it working double time to catch up. I have designed and printed the keel along with the dual rudders. Deck has been re-laser cut and finally fits perfectly. I have had the boom 3d printed (first on a FDM plastic printer - the kind that splurges out plastic from a nozzle - and then the final with an SLA printer. It cures liquid resin with a laser) and soon ready to assemble. 
 
Preparing for a quick primer spray. 3D printed keel with a 8mm hole ready for a tapped hardened steel rode go through and into the hull for extra support. I will have the model sitting on it's keel on the base
 

 
 
3D printed boom tester piece just attached with a piece of elastic. Carbon fibre mast has been added and placed. The mast is hollow but I've filled it with a resin to help give it that extra strength. Also means when the boom is attached I can insert steel rods attaching it to the mast. Black vinyl has been laser cut and just placed on the windows. Won't glue them in until the paint job has been done. 
 

 
View from the under side. Twin rudders placed and holes drilled. Reinforced again with metal rods. Start of the rudder is in the works in this image as well. 

 
A side perspective of the yacht. Those hatches are looking spot on finally! I'm enjoying the elegant design of this yacht. I'll be going for the same colour scheme as I've done in the computer renders. You can just seem the in the image below. 

 
How she is looking at the moment. 

 
 
Cheers,
Iain 

I've been working on getting the decking correct using thin lime wood veneer. Having the CAD model means I can laser cut the decking out and it should fit perfectly. However it doesn't always. There are so many lock points with the hatches some of them are out by just under 1mm and it can be quite noticeable. The idea was to have the hatches flush with the deck - like they are in the real thing. I used paper prints to start off to try and scale it closer - and then tried the wood. I'll have to buy some more lime in and give it another go. 
 
In terms of using the Laser cutter we have 3 Trotec machines in the studio. These have just been added and no-one is sure of what settings to use so there was a fair bit of testing to get a perfect engrave and cut. Another problem I have run into early on was because some of the lines had not been joined in the CAD file it meant the laser would hover over a certain point for a millisecond longer leaving a brown dot. Check the images below. 
 
Half a dozen paper samples printed to scale. 

 
Paper samples on the model. Quite a bit of tweaking was needed here and there. 

 
First laser cut tester piece that came out with the dots. These lines on the CAD model have since been joined and solved the problem. 

 
Coming out of the machine

 
Here she is to date with the wooden decking just slotted in. This will be glued in at a later date once I've sprayed the model. 

 

 

 

 
 
 
You can see here the hatches not quite matching up. They are only very slightly out by maybe a mill. 

 
 
/Iain

Beautiful work. Such attention to detail. Very clean and methodical work - looking forward to more updates. 

Beautiful work. Such attention to detail. Very clean and methodical work - looking forward to more updates. 

I'm hoping to organise a visit soon. I was in contact with them originally to acquire some plans however they refused by request on copyright terms. There was a very good documentary on the BBC last month about the construction of these luxury yachts (sunseeker however). Models of some of the luxury yachts can cost up to £40,000 they mentioned. The documentary was called 'Britain's Biggest Superyachts: Chasing Perfection' if anyone wants a watch. 
 
 
Thanks Michael.
 
 
So an update on the painting situation. I have had to do some emergency repairs. I arrived this morning and some of the paint has reacted with the model. Unfortunately I didn't think of taking a picture at the time before I went away cutting the paint off. All the paint and lacquer I was using is cellulose based so that rules out a chemical reaction. I had wiped down the model before spraying for any grease and dust but perhaps there was some still present. The lacquer naturally pulls very slightly at the model as it sets however this part was very drastic. 
 
This was the effect that had been left. horrible! 

 
All the layers of paint separated from the chemiwood. Including the primer. I just scalpeled off the paint. 

 
Sanding back. I even masked off the area afterwards and some more just peeled off. 

 
Spraying and using a sheet of paper with a hole to create a feathered edge. Merged in quite nicely. It's almost gone. phew.. (some dodgy - yet very effective masking). Used paper along with less masking tape as not to peel off anything else. 

 
aahhhh.. feeling much better now. All I have left to do is another lacquer. I will let the paint fully set over the weekend and do the gloss lacquer on monday.