VIIC 1:45 modell

Show off your FreeCAD projects here!
jet
Posts: 1
Joined: Mon Nov 05, 2018 11:36 pm

Re: VIIC 1:45 modell

Postby jet » Mon Nov 05, 2018 11:38 pm

Hello hds!

Can you explain a bit more about your technic with nylon? Is it as solid as fibre glass?

Thanks.
User avatar
hds
Posts: 97
Joined: Tue Feb 14, 2017 8:23 am

Re: VIIC 1:45 modell

Postby hds » Thu Nov 08, 2018 7:43 am

Sure.
Sneak to the wardrobe of your wife/girlfriend/... and reuse i.e. sneak a pair of nylons.

Test with 2+ layers. The epoxy soaked nylon will be very strong,durable and a bit elastic so it will not crack. With 4 layers as i did use for testing the hull is so strong you could use it for a canoo.

Bonus point: Your cohabitee will participate in the project that way.

Don't let yourself get caught ...

hds
User avatar
Kunda1
Posts: 4778
Joined: Thu Jan 05, 2017 9:03 pm

Re: VIIC 1:45 modell

Postby Kunda1 » Thu Nov 08, 2018 11:04 am

:lol: :lol: :lol:
Want to contribute back to FC? Checkout:
#lowhangingfruit | Use the Source, Luke. | How to Help FreeCAD | How to report FC bugs and features
User avatar
bill
Posts: 374
Joined: Fri Jan 09, 2015 9:25 pm

Re: VIIC 1:45 modell

Postby bill » Thu Jan 24, 2019 8:31 pm

Hey! Need a project update here if you got the time! :D
User avatar
hds
Posts: 97
Joined: Tue Feb 14, 2017 8:23 am

Re: VIIC 1:45 modell

Postby hds » Sun Jan 27, 2019 5:47 pm

Dad brudder can be helped.

Access to the shipyard is limited in the moment. Don't know if it can be reastablished. (note 1)

Back in the stinktank:
1) Make the brushless motors watertight so they can operate directly in water. Need lathe for this (see note 1)

2) Find a solution for the cutout areas of the hull. I like to stick to the nylon hull but this creates a problem with the cutouts. In the moment i like to create lasercut (note 1) patches and stuck them into an cutted area of the nylons. See picture which tells more than 100 words of my mumble stumble ...
Well, ideas welcome ! Let your ideas drip in ...
VIIC_cutout_1.jpg
VIIC_cutout_1.jpg (358.12 KiB) Viewed 1046 times
User avatar
hds
Posts: 97
Joined: Tue Feb 14, 2017 8:23 am

Re: VIIC 1:45 modell

Postby hds » Mon Feb 18, 2019 5:42 pm

The front rudder section from the FC kitchen table workbench. Btw, i have an idea of how to get the cuttings in the hull. Needs some testing though.
frontRudder.jpg
frontRudder.jpg (49.54 KiB) Viewed 864 times
User avatar
hds
Posts: 97
Joined: Tue Feb 14, 2017 8:23 am

Re: VIIC 1:45 modell

Postby hds » Tue Feb 19, 2019 10:57 am

and with the snap in mechanism in place. Works out as planned thanks to FC.
FC_rudVorn1.png
FC_rudVorn1.png (94.47 KiB) Viewed 794 times
f1.jpg
f1.jpg (83.91 KiB) Viewed 794 times
f2.jpg
f2.jpg (84.79 KiB) Viewed 794 times
User avatar
hds
Posts: 97
Joined: Tue Feb 14, 2017 8:23 am

Re: VIIC 1:45 modell

Postby hds » Tue Feb 19, 2019 7:51 pm

back from the workshop today. Aft rudder section ready besides fine filing and drilling. I think i will anodize all alu parts blue. That makes me think why not make the rudders itself out of alu ... fine colouring me thinks .... at least something different to all this warfare dark gray.
When this aft rudder section is finished i can carry on with the hull planking and covering.
aftRudder.jpg
aftRudder.jpg (47.35 KiB) Viewed 750 times
User avatar
hds
Posts: 97
Joined: Tue Feb 14, 2017 8:23 am

Re: VIIC 1:45 modell

Postby hds » Sun Feb 24, 2019 2:25 pm

Some laser cutter improvements. I should have done the "vacuum box" right at the beginning of this project (jacka_me (C))... drastically improves cutting results. Some settings that worked for my 15Watt laser on an eleks maker frame. The lattice metall avoids the building of ashes on the bottom side during cutting. When the laser cuts through it will burn the surface below and the pile of ash has an reverse effect on cutting quality. So you want to avoid this.
settings.jpg
settings.jpg (64.8 KiB) Viewed 646 times
Cover the not used areas with some paper. Newspaper will do. Make sure to put the politics upside down. The vacuum on these pages will support the draught.
vacuum.jpg
vacuum.jpg (85.24 KiB) Viewed 646 times
Some sheets cutted. Pls note when your cuts are just to dark reduce power and/or increase cutting speed. You want just come through which should give you a needle pin width of a cut. Also you may want to check out BenCutLaser Tutorials on youtube for more explanations.
Ah, just forgot ... check the focus of your laser ... beginners fault hit me. Aaaargh ... all the frames done with a not focused laser ...(jacka see above) ...
overview.jpg
overview.jpg (77.75 KiB) Viewed 646 times
User avatar
hds
Posts: 97
Joined: Tue Feb 14, 2017 8:23 am

Re: VIIC 1:45 modell

Postby hds » Mon Feb 25, 2019 4:46 pm

Cutting of the "vacer" logo. Pls note that you may get a _little_ bit of ashes on top when the first cut doesn't get through whereas on the bottom side there should only be hardly noticable traces of _smoke_ patterns but no ash deposits. The ash/smoke pattern on top of the material is due to a vent attached to the laser. Forgot a scale. The width of one leg of the "V" is approx 4mm.
May be i can do the conning tower tonight.

Overview:
IMG_20190225_170216.jpg
IMG_20190225_170216.jpg (34.17 KiB) Viewed 585 times
IMG_20190225_170157.jpg
IMG_20190225_170157.jpg (48.39 KiB) Viewed 585 times
Zoom of "V" top side:
IMG_20190225_170845.jpg
IMG_20190225_170845.jpg (59.28 KiB) Viewed 585 times
And bottom side (note the two little smoke spots top right):
IMG_20190225_170905.jpg
IMG_20190225_170905.jpg (60.11 KiB) Viewed 585 times