What boat to make?

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What boat to make?

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26 January 2015 at 19:05 #55465
Matthew B
Participant
@matthewb78704
Hey Dave,

Thanks! So glad my Grandfather introduced me! Got a PS4 last year but hardly use it now. Just seems like a waste of time when i could be doing all this stuff that is much more beneficial to my future and more fun!

Also, wow! Just looked through your album! Very impressive. How will that 3 motor system work?

Matthew
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26 January 2015 at 20:21 #55467
Matthew B
Participant
@matthewb78704
Just got all the jet intakes done! and have created another thread for the 3D printed stuff
26 January 2015 at 21:01 #55469
The Long Build
Participant
@thelongbuild
Posted by Matthew B on 26/01/2015 19:05:16:

Hey Dave,

! Got a PS4 last year but hardly use it now. Just seems like a waste of time when i could be doing all this stuff that is much more beneficial to my future and more fun!

Matthew

You sure your a teenager lol, as with a comment like that I think you have just been banned from the Teens club !!
26 January 2015 at 21:47 #55472
Matthew B
Participant
@matthewb78704
Yeah! I get asked that quite a bit. Probably am out the club; doesn't bother me though… At the end of the day what are you gonna put on your CV. I have $6,000,000 of FIFA points and am the best at GTA5 in britian or i know AutoCAD inside out, take up engineering challenges in my spare time and have great grades because i didn't waste all my time on a game console

I might be wrong but seems like the right plan to me!

Matthew
27 January 2015 at 00:19 #55473
The Long Build
Participant
@thelongbuild
Posted by Matthew B on 26/01/2015 21:47:55:

Yeah! I get asked that quite a bit. Probably am out the club; doesn't bother me though… At the end of the day what are you gonna put on your CV. I have $6,000,000 of FIFA points and am the best at GTA5 in britian or i know AutoCAD inside out, take up engineering challenges in my spare time and have great grades because i didn't waste all my time on a game console

I might be wrong but seems like the right plan to me!

Matthew
27 January 2015 at 07:28 #55474
Matthew B
Participant
@matthewb78704
😊 yeah, i just want to be succsesful and i cant workout how a PS4 is helping me Get what i ultimately want? thats my mind set but it might be wrong however i feel i can make more of an impact on my life here: learning, building, getting help from knowledgable people. Oh and if any of you guys ever need anything 3D printed, just ask. I Will try my best to make them

Matthew
27 January 2015 at 09:12 #55478
Trevor Holloway
Participant
@trevorholloway99134
Matthew – such a breath of fresh air for a teenager – you will be surprised how much you will learn designing and building "stuff".

Good luck – plenty of help on here.
27 January 2015 at 16:46 #55490
Matthew B
Participant
@matthewb78704
Thanks Trevor

I just had a look through your album and found that lotus! Very cool indeed, what a great idea! How did you make all the complex wood pieces water tight? I am struggeling to seal around my jet intakes, what would you suggest?

Matthew
27 January 2015 at 16:58 #55491
Trevor Holloway
Participant
@trevorholloway99134
The Lotus was fairly simple strange box shape.

To make the "lid" I first made the car then wrapped it up in two layers of clingfilm. The lid was then cut and glued together in place, the cling film stops it sticking to the body.

There is also a seal of draught proofing tape, four screws with glued in captive nuts hold it down.

It zips across the pond quickly but tends to flip over on the ripples (probably overpowered with two 540 motors and racing props). Only managed to get it under water a few times so far – still a work in progress.

Technically it works (OK not as well as hoped) so has been moved down the list of projects. Will have another go at it when the water warms up.
27 January 2015 at 17:01 #55492
Trevor Holloway
Participant
@trevorholloway99134
Silicon bath sealant is good for sealing – make sure everything is clean and grease free first.
27 January 2015 at 17:31 #55495
Matthew B
Participant
@matthewb78704
Very interesting Trevor,

Ahhh Bath sealer! What a great idea, i will be sure to try it on the ABS intakes!

Also you said you have two 540 motors on such a small boat. What would you suggest for mine? 84cm long 29cm wide and i want it to go fast like the attack crafts?

Matthew
27 January 2015 at 17:57 #55501
Trevor Holloway
Participant
@trevorholloway99134
No idea on the size of the motors, chances are brushless is the way to go however be aware of the shaft bearing limits as there will be quite a load on them.

Tthe Lotus was sized around the weight of the motors, battery and some for controls, giving a displaced volume. The water line was guessed as around the window height and volume of car under water calculated.

Side elevation was adjusted on the photocopier to get the approximate size with just enough internal space for motors, width adjusted to get the displacement.

Thats why they teach maths at school.

Scale is about 1:15.
27 January 2015 at 18:31 #55502
Matthew B
Participant
@matthewb78704
Okey

Yeah, it is a shame they don't start teaching any real world maths such as that until A-Level but i am sure i will figure it out! All i have worked out so far is that those 2 jet motor are not going to be enough!

Matthew
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