Julien
is an happy boy, at the age of 7.5 is starting sail modeling ! The Delta Rig is in his hands since Christmas. Hope in future will become a perfect sailor ! Today is close to 0°C
Papy is happy too of course !
Cheers
Claudio
After a period busy in others affairs, is time to come back to this (these) projects.
I have reviewed the servo’s set up .
Before preparing the fin trunk is better to make first the fin and later adiust the trunk dimensions around the finished blade.
This time the inner material will be as usual balsa sheets bonded togheter with epoxy to get 5mm thickness. The leading edge will be made with 2mm carbon rod.
These are the first pictures showing the actual progress.
Next step will be the shaping in order to get a nice profile.
Cheers
Claudio
Some shapings !
Actual fin thickness 4.3mm just to integrate the brass treaded rod before lamination - weight as is 24g.
Bulb - some polyester filler and then epoxy/glass lamination before drilling attachment hole.
cheers
Claudio
Just prepared the brass rod and integrated into the fin cut before epoxy bonding & finishing filler & lamination.
Claudio
PS : the picture is misleading, the bulb should be turned by 180° - sorry
hi Claudio,
you’re telling us a great story, again ! Lots of informations and tips i’m interested to use on the Open60 project i have. but i only found extruded polystyrene foam panels from 20mm up to 80mm thickness… i could use those, but would have to glue them together…
could you tell me were i could find foam blocks as you use.
thanks
Paulin
Hi Paulin,
The polystyrene I used is exactly the extruded polystyrene foam. Any building material shop area sell this type of material used generally as thermal wall/floor interface.
Since you are in France, you may go to LeroyMerlin, Castorama, or similar places.
The panel I used was 150 x 80 x 8 cm
From the first pictures, the cutted ‘slices’ were large only 6.5cm.
If you need to use larger pieces, then you need to bond the parts with epoxy, most of glue are melting the foam. Be carefull to avoid to smear the resin up to the edges. The resin, after the polymerisation is very hard, compared to the adjacent foam and will be difficult to control the shaping with abrasive paper or wood rasps . In one of the published pictures, the third from left -post 2 - you can see while I’m removing the inner part of the paper, limiting the area where to put the bonding resin.
Hope to have provided the answer to your question.
Cheers
Claudio
Hello Claudio
Please excuse me if you have answered this question many times before.
What software have you used to produce the drawings in Post No7?
I have always struggled with CAD, either the software was far too expensive and complicated to use as a “hobby” tool or the lofting capabilities fell short of what I expected. I am using Adobe Illustrator and working too hard and long to produce a a set of lines and then manualy calculating everything. I am spending more time than if I were doing the drawings manually just so I can have digital files I can share with the internet.
Whilst posting I would love to say how much I admire your work and thank you for the inspiration you provide.
Respect and Regards
Robert
Hi Robert,
I appreciate what you wrote.
All my drawings are made with an old version of Corel Draw 5. This my preferred 2D software , simple and easy to use. Of course I have no secrets anymore after so many years of useage.
I believe that can be free down loaded as vintage sofware from here :
http://vetusabandonware.com/download/CorelDRAW!%205/?id=3320
Let me knows if it work.
Cheers
Claudio
I didn’t think Corel Draw hada lofting function. I am even more impressed knowing that you are calculating everything too. Wow Claudio you are a very talented man!
Robert
Hi Robert,
CorelDraw 5 or even 6 works well with Window XP and Vista.
A proper Lofting is limited to some simple pseudo 3D extrude functions , unfortunately no ‘revolution’ objects can be drawn as with the ‘Designer4’ another antique soft’. This is primarly a 2D drawing tool.
Here the Corel Draw page with some open function contained in ‘Effects’ + an extrude form with colored surface. Shadows are obtained with the ‘lamp’ sub menu.
If you are interested, you should ask Corel to see if they can still supply the Corel Draw 5 o 6 Manual Book & Image / Fonts Library book. Otherwise asking in specialised forums dedicated to 2D Drawing Softwares.
This is what I can tell.
Here the Drawing with the Color Tool
Cheers
Claudio
Thanks Claudio, you are putting a lot of effortk into your presentation,. I appreciate how much work that is.
I wish there was a " Divider" tool on Adobe Illustrator just to transfer measurements from an end elevation onto the plan an profiles, that would make life a lot easier.
Regards
Robert
Under the pencil icon there is a pop up window containing a serie of tools all related to measurements in all directions
Cheers
Claudio
I’ve traditionally used AutoCAD and have reasonably mastered the basic 2D fuunctions but haven’t had much joy with 3D. I want to start 3D drawing and have recently been using Google Sketchup - the base version is free to download. Sketchup, so far, has been quite easy - attached is an image of a 3D component I produced in around an hour (it’s nothing to do with model boats by the way). The main shortcoming I can see of the basic version of Sketchup is that it doesn’t natively support .dwg or .dfx file formats, which are conventionally used for CNC machining - you can get an import add-on but for export you appear to need the pro version.
Another tool I’m goona have a look at is devFus (find it referenced here http://www.profili2.com/eng/default.htm) - after all are model plane fuselages that different from boat hulls conceptually? I came across this product as I have started to use Profili to draw possible wingsails for my multihulls. Both Profili and devFus have prices oriented towards the hobbyist.
Ray
Hi Ray,
I wish you good luck and a lot of fun.
Personally I do not need 3D drawing to draw my models.
Cheers
Claudio
Some more detail pictures about the prgress of appengages, namely fin and bulb. The rudder exist already from the CD65.
These pics are for the Fin step by step
Claudio
some more about treaded rod insertion for bulb attachment, followed by carbon/epoxy lamination wit 1 layer of 162g/m² and 1 layer of 93g/m²
Claudio
laminatedt Fin and bulb preparation . To note that the Fin weight is 55g including bulb fixation bolt . The bulb is 756g.
Now is needed some finishing work to couple Fin and Bulb
Claudio
The rudder with winglets recovered from the old CD65. I shall make a second one anyhow !
Cheers
Claudio
Claudio,
What program are you using to do your drawings for your rigs and hulls?
Thanks in advance.
Ciao,
Michael
Hi Michael,
my software is an old Coreldraw 5 that is not in commerce anymore, but can still be free downloaded at Vetusware.com
Cheers
Claudio