Flat cat from dr psycho twin set up.

[metalsak]

Hi....some delay on the project,but finally the drives going to be complete.
i take four spherical (polymer) joints from igus.de and i open carefully the hole from 3mm to 5 mm(the drives are 5mm on the back). those come in stiff tolerance,and get water tight for sure.

[metalsak]

Because no body here in greece that have a cnc router,like to work with carbon....i find a solution that is very good in tolerances...i worh a lot with laser cut in my own business,and i find pretty good,to make my drawings for my projects,then to cut them in d.c.p soft metal....and then screwed on the carbon plate,and then "dremel it"
works great!!!!

[metalsak]

Yesterday whas my name celebration...and the drives,as they come semi-complete whas my present for sure!!! i like them a lot,and if they are too long,i think that i can milled them again??
but i have one hour for me yesterday,to look them,thinking of them, etc ...like a small boy..xaxa(i think that all ,from us here, have the same thinking some times)
i hope you like them.....

[metalsak]

[metalsak]

Next part will be the rudder...
i have one ready....but now im thinking for one special,machined from me,as the look of the drives,worth something like this.
i will use twin mini servos,to activate this rudder.....savox sh0257 (if i remember correct)

[roundnose]

I'm really pleased to see this Flati on the water!

Go on!

Werner

[metalsak]

many thanks!!!

[metalsak]

hi guys....
some late process on the flatti,but some time before some days,together with milling,gives this result....

[metalsak]

and......

[metalsak]

also the part that holds the rudder blade.
will be run on three inox ball bearings φ3χφ7χ3...
and how looks on the boat...

[metalsak]

i like to use two mini servo in this project,just for the use of two rods instead of one...if i use one servo,even mini,there is no way to put two rods...so i think of this sliding part(is two parts) one for the servos,male,and one glued on the boat female...the servos will go far away back,and only one small screw(m2) will stop the sliding,but from a vissible area,with easy acess...is also a carbon part not ready,yet to hold the other side,and push the male on the female part...

[metalsak]

some more photos from the female part......
the cut out from the alum. block its done with disc,as is very thin(1mm) .

[metalsak]

and how it looks on the boat...
the servos can have three configurations...face to face...bottom to bottom...and inside,or outside the coloumns.

[metalsak]

i have make them from 6,2mm diameter solid inox.
the final bigger diameter is in the boushings (5mm)
the diameter in the prop area is 3,17mm (1/8) as i use octura props
the drilling for piano wire 1,5mm
so why i get a bigger shaft...because first i make the piano dril,together with centre drill...and then from the oposit,where m3 nut work...
so i work all the shaft,from the centers,as i like to work in high speeds with no vibrations....but the machining must go with small cutting dephts.

[metalsak]

and some more......
with a hard shaft,as a tool,with 1,5mm diam. and some cone,to drive and hold the shafts.
all the cutting process,is done with pressure hold on the shaft.
i like this type of work,as eveything turns on dead zero...

[metalsak]

i think that when i finish the rudder blade,and do some work on the robbe roxxy controllers,and before do oxidation to the alum parts (salt water mostly in greece) maby i can test the boat?

[Alex123]

Let`s go! I'm very excited.

Alex

[PSYCHO]

nice to see the good metallwork !

Regards Ralf

[metalsak]

thanks alex,thanks ralf.....
i whas wondering if is interesting,to see the machining.....or boring....

[Alex123]

The first: it`s very interesting
The second: great job

Alex