Bouwverslag EeZeBilt Cresta (2 stuks)

The EeZeBilt skins were originally designed to be made out of 1/16 inch balsa - about 1.7mm. This makes it easy for a child to cut, trim and bend. The skins would usually be held on with pins while the glue was drying.

Your boats are being made with a much harder wood (ply) and about twice as thick! So you are finding it MUCH harder to fit and glue the skins. Even changing to 1mm ply would make it easier...

 

Hi Dodgy
i know the EeZeBilt were designed for Balsa ,
the story and info on your website is very clear and great ( to read the history )
the reason we did choose for the PLY was i have many plates here , bought them a while ago cause the kids did like to jigsaw
it was complete a surprise when i was looking and reading on your site that one of the twins came with the idea ,
after she was watching the Cresta , she would also like to build one ,,
well the last time i did something with wood (like modelboats and other wood working) is about 25 - 30 years ago
so the only ply or wood i have is only the 2,5 mm thick ply thought it must be sofar no problem
and in fact it isnt but i discovered the ply is water resistant
this is why it needs at least 48 hours in water , after they bend very well ,

but i need to help the kids with it (ok not the meaning of the EezeBilt) but when the ply once bent the kids can glue it without any problems cause it stays in the shape

if they want to build a different model (which I know for sure) i will take some balsa wood to see how this will work out for them

For the moment the kids are pretty busy with other things , but they only need to add the bottom ,
then sandpaper everything , and make it water resistant ,, and paint the Cresta so far so good
only about the motor we arent sure yet what to do , so this is why we wait till we know

 

I am not sure what you will do for a motor. You need two, which makes the problem harder!

Small plastic outboard motors used to be cheap to buy, but they have completely disappeared from the shops. Occasionally you may find one at a high price intended for a collector.

Most of these 'collector' items are going to be too big for the Cresta in any case. The 'Sprite' motor which the Cresta was designed for is only 8cm top to bottom - 7cm top to propeller centre, and 3cm propeller centre to mount. http://www.ebay.co.uk/itm/Vintage-M...970340?hash=item2a5cc3ec64:g:1DgAAOSwqu9U-HsE

Most of the collector motors which are available are bigger than this, and the one cheap motor which is available http://www.ebay.co.uk/itm/Hi-speed-...286493?hash=item1a0513159d:g:tYIAAOSwgQ9V3ZNv is nearly twice this size (and I don't recommend it anyway!). These small outboard motors also do not have much power - so the Cresta will not move very fast with one...

If you do not want to convert the boats to inside motors, I think you will have to make up your own outboard. The plan on the web site may help, or you may be able to use these small (but powerful) motors which helicopters and drones use http://www.ebay.co.uk/itm/2Pcs-Orig...364787?hash=item1ea4b54ff3:g:N-AAAOSwKIpWBQDc . They should run under water with no problems, and, if dried thoroughly after each use, should last a season or so before needing replacement....

 

Here is a picture of the idea. Make the item out of brass or steel. Bend and solder it to shape. Mount a servo in the 'motor' area, and attach the servo arm to the Transom of the Cresta.

A small helicopter motor goes in the other end of the item, and runs underwater. Oil it well first, then dry it out after each use and it should be OK for a season.....

20160522_132532 door Dodgy Geezer geplaatst op 22 mei 2016 om 14:42

 

Hi Dodgy
My apologize
i just see now the latest picture , looks great , ! thanks for sharing ,,
cause back in the summer we did move , there wasn't any time to go on with the both Cresta's
still have to do some rebuild here in the house then i can start to create a new workplace ,,
for now a lot is still packed in boxes haha ,,
anyway , when we go on i will ofcourse post any news again ,,
i will test for sure the helicopter motors , it looks great
thanks again for the great info

 

i did that too with my 9 cm springer tug the motor runs under water! it run's great but sometime's it needs a drop of oil on the shaft of the motor