Saturday, 7 June 2014

The Argie 15 kit build

This came in from Andreas last week.

Hi Roy
Some foto’s

In this case we sold the Dix Design Argie 15 plans to Andreas and he did his own setting out.

The design comes out of six sheets of 6mm okoume marine plywood, so a lot of setting out and electric jigsaw work, you get there in the end though.

Check the assembly and the drawings, they take you through each stage, step by step.

Argie 15 plans or a kit and related materials can be bought direct from CKD Boats cc, they are all cheaper than you would think!
We have placed the order for the complete North Sails and Ronstan deck gear package for this boat and will send to Andreas when they are ready.
Check the design on the SA Yacht Blog


The boat in the picture was built from one of our CNC cut kits.

Packing the Didi Mini Transat Mk3

The export orders always go into a purpose made crate, the norm is using 16mm chipboard, cut to size to give just enough space to allow the plys and in this case the CNC shaped rudders to fit.

Due to the space such a crate takes, we had the plys loaded with the crate against the wall pending on collection day.

The rudders were laminated and CNC cut to shape so that the customer could do final shaping himself. The envelope is a Lucky Packet of odds and bobs we send with most kits.
Steel band strapped, our crated kits have shipped world wide like this for over a decade and allow
safe handling and when the customer receives his kit boat order it is in the same condition we sent it in.
The shipping lable was attatched later, this order will go to Dubai, UAE, country number 35 we have exported to I think.

Thursday, 5 June 2014

A view of Hout Bays weather today

The weather is typical wintery stuff, changeable, wind and rain with heavy hail and thunder at times but
otherwise really nice when the sun comes out.

Same 1600i Ford Bantam, same wonderful view and on the way back from another boat kit delivery and back to office to check mails.

Nice job? well no complaints!


How to move a Proteus 106 sail boat by road

In this case its a larger version and with the extended transom, built in Thailand for Rick
it looks like moving was not too difficult and I think they launched off the beach?

As our plys and MDF stations kit weighs some 2600 kgs, the epoxy 150 kgs, all up and when complete this will  still be a light displacement boat, good for sailing of course.

The need to move such a load on a national highway will require a road legal wide bed trailer and licenced rig driver.


Wednesday, 4 June 2014

Proteus 106 kit packing

Monday morning:

This is to a local order for a customer on the South African East Coast, for all exports we pack in purpose made crates and this size order would need at least two such crates.

The trick is to pack what can be lifted by the Hyster, at over 2000 kgs this size Hyster would have none of this and just would not lift the order.

A plan was made for a larger Hyster and we then steel band the order to ensure it stayed as one pack lot and arrived in good condition.

The odd shapes in between are 16mm MDF cut outs which are removable bulkhead stations.

The load weighs about 2600 kgs? we supplied 150 kgs of epoxy with this order as well.

This large catamaran is built the right way up and then becomes an easy build with no later worry about turning it over at a later stage.


News in by thursday:

Hi Roy

The kit arrived yesterday late afternoon - all intact and no apparent damage. I haven’t unpacked and checked everything yet.

Many thanks


Tuesday, 3 June 2014

Hout Bay today

Actually this was yesterday but the weather is much the same today again!

The view is across Hout Bay in South Africa, the Sentinal is the name for the pointed cliff on the far side and behind that is Karbonklberg.

Read wikipedia for more

Bantam pick up by Ford, the 1600i petrol engine by Mazda and the picture by me.
Click on it to enlarge the image.

Roy McBride

Sunday, 1 June 2014

Roys Foils and Rudders

Thats a new name in the yachting industry?

Having just laminated a Didi Sport 15 keel foil up and with the rudder to be done next, followed by a Sadler 26 rudder after that its clear it may be a suitable name?

Dix Design have supplied us the CNC cut files to profile the foil and rudder.

We then slot the shape into the wood on both sides with a sideways groove every 50mm, this means
we can release the actual shape in a controled manner.

Drawing # 8 says to laminate with recorcinol or epoxy, we always use recorcinol.

Applied to both edges to be laminated it really soaks into the wood, which in this case is african mahogany (khaya)

Check the link to view the Didi Sport 15 boat.

One foil blank ready for the CNC works

The timber for the rudder laid out on the foil blank but not glued.

The rudder timbers are now laminated and will be at the CNC shop in the morning.

Released from the clamps,the phenolic glue is in the plastic container and plastic bag, the curled black thing is what was left over from the keel foil glue up.

The two blanks are now ready for CNC works.

How easy is this? sort of when you have done it this many times.


Yamaha turntable and audio feed back

Hi Roy,

Earthing via the mains electrical earth is possible but not advisable. If you do encounter an earth leakage situation from another appliance it will be expensive....   This is almost a guaranteed outcome unfortunately, unless you also have a very sensitive surge arrester or similar.




Please read the above at least twice before copying what I have tried below!

Thanks Justin.

The service of a Yamaha turntable was posted some time back.

There is a series of pictures in the link showing the opening and cleaning of the turntable that I bought new from Hamrad in Cape Town.

However I have continued to be wondering why there is feedback when the clear plastic lid is lifted and a record is playing, its fine when I am not touching the player.

This is what the trouble was caused by:

These sets and the audio amplifier by Sony are both connected to 220v electric supply with a two core wire, so positive and negative, there is no ground or earth wire, why?

The turntable has an earth wire which is part of the white and red audio wire loom, the back of the Sony amp has a ground connection which the earth wire connects to but when handling that earth pin with the set powered up gives a lot of noise, why?

The reason was simple, there was no continued earth or ground wire  feed to the buildings power supply.

I took a single wire from the amplifier and then to the power plugs earth pin, unused as there were only the two wires to connect, positive and negative. With the single earth wire connected to the buildings ground system the feedback was gone, simple fix!

How easy was that?


Note, I would suggest that if your not qualified to do such connections or have doubt in your ability to employ someone who is qualified, at all times make changes and connections with the power switched off and with the power supply wall plug removed.

I was going to delete this entire posting as I have obviously made a mistake and posted an error but on thinking about it the post may just stop some person from making the same mistake?

I have removed the ground wire to the domestic power supply earth, next I will run the ground wire to the domestic water supply copper pipes which are in the roof space close by.

The Sony amp and Yamaha turntable were later grounded to the Akai music center, we use the audio tape and CD side on that. This seems to have acted as a large enough ground and so far the feed back has stopped!