Cookies used in this website are gluten free, wheat free and dairy free. By using this website you agree to our use of cookies. More Info
Guest
Login Below
Join Us On Social Media!
   
Get The Model Boats App!
Apple App Store
Android app on Google Play


Help Support This Website
£
or enter custom amount

(Non Contributor)

Help support this free
website and donate.



£285 a year is needed to keep the website and apps online. Please consider donating £5 or more to help towards these fees.
All donations are securely managed through PayPal. Amounts donated are not published online.

Many thanks for your kind support.

Model Boats Website Team


Donation History
December 2017: 1 person
November 2017: 13 people
October 2017: 9 people
September 2017: 15 people
August 2017: 10 people
July 2017: 16 people
June 2017: 8 people
May 2017: 8 people
April 2017: 20 people


Unique Visitors This Month

Website Members

Terms and Conditions
Privacy Policy
Advertising
Contact


Model Boats Website
Active Users (10)
Login or Register
To Remove This Ad

Login or Register
To Remove This Ad
>> Home > Boat Building Blogs > Bluebird K7
>> Permalink
mdlbt.com/26575
Bluebird K7 Print Booklet
Author: Midlife306   Posts: 45   Photos: 61   Subscribers: 1   Views: 3795   Responses: 82   |   Most recent posts shown first   (Show oldest first)

Showing page 2 of 5   |   Jump to page: 1   2   3   4   5  

mdlbt.com/28427
Bluebird K7 - Posted: 9th May 2017
Annnd relax, thanks Dave, I don't think Luke will be too happy about having servos shoved up his backside. Exciting territory indeed!
Cheers
Wayne
Response by John on the 9th May 2017
Hi Wayne, Can't wait to see the result! I hope you are making progress.

John.

mdlbt.com/28424
Bluebird K7 - Posted: 9th May 2017
Thanks Dave, every day is indeed a school day, I've just ordered the following:
https://www.ebay.co.uk/itm/262907440238
I'll have to get my learning hat on, with the various inputs & outputs am I correct in thinking I'll be able to use it to animate my pilot as well?
Cheers
Wayne
Response by Dave M on the 9th May 2017
Hi Wayne
Crikey you really are moving into new territory. I have both an Arduino and Raspberry and they are very versatile once you learn how to program.
Yes you can program to do most tasks including animating your pilot.
Good luck with this
Dave

mdlbt.com/28421
Bluebird K7 - Posted: 9th May 2017
I've ordered some 6mm brass box section & some 5mm carbon fibre bar, the very vague plan in my head depends a lot on what the linear actuator is like when I get it in my hands & what mods I need to make to get it to fit. The 1/4 scale Luke Skywalker arrived today so I can't wait to get home to start butchering him😈
Cheers
Wayne
Response by Dave M on the 9th May 2017
Hi Wayne
The stepper motor on the actuator will require an Arduino or Raspberry to drive. I assume you will be able to replace with a brushed motor if you have neither.
I also have an interest on model trains and we use small servos to operate the push rods for points. The retract switch on a Tx would provide the two positions needed by the servo.
You are really cracking on with the project and the results are looking very impressive.
Dave

mdlbt.com/28411
Bluebird K7 - Posted: 9th May 2017
Before the filling & sanding can start I need to make the canopy opening mechanism, finish the front, make the floor & bond it on, to make the assembly nice & rigid.
Response by RNinMunich on the 9th May 2017
I agree John,
can heartily recommend the small Bosch eccentric sanders with a collection of shaped pads (and dust extraction!!!!!👍) for the larger stuff, hulls etc, and the mini modeller sanders from Dremel and co for the fiddly stuff. 😎
Response by RNinMunich on the 9th May 2017
Hi Midlife,
can't wait to see the canopy mechanism in action 👍😎

mdlbt.com/28408
Bluebird K7 - Posted: 9th May 2017
Oh I do enjoy it John, the problem solving especially, it's all the filling & sanding I'm dreading that will be coming my way shortly 👍
I'm just on with making a fixture to cut the profile of the sponsons, I'll get it finished tomorrow & give it a try
Cheers
Wayne

Attached Photos - Click To View Large

Response by John on the 9th May 2017
Hi Wayne, You have to do the filling yourself but I would leave as much of the sanding as possible to the machines!
John.

mdlbt.com/28403
Bluebird K7 - Posted: 8th May 2017
Managed to get some more blue foam today👍
I'm really enjoying this, at the moment....
Cheers
Wayne

Attached Photos - Click To View Large

Response by John on the 8th May 2017
That's what it's all about Wayne, if you don't enjoy it why do it?

John.

mdlbt.com/28338
Bluebird K7 - Posted: 8th May 2017
Hehe, my versions are somewhat agricultural 😎👍
Response by Dave M on the 8th May 2017
When I had my foam cutter I used a variable supply as different Foams and different lengths of cut need different temperatures.
Too hot and the foam melts, too cold and the wire bows. Very much trial and error for each job but the results can be very consistent.
Dave
Response by RNinMunich on the 8th May 2017
I agree 👍 I will use my 30V 5A variable supply as I propose to use it for various foams. Voltcraft or BaseTech do a decent one which ain't too expensive. Great for all sorts of tests and experiments cos you can set the max current you don't want to exceed. Constant voltage or constant current operation 😊
Cheers 😎
Response by RNinMunich on the 8th May 2017
PLOUGH On Wayne 😉

mdlbt.com/28328
Bluebird K7 - Posted: 8th May 2017
Hot wire foam cutter:
I started off by watching just about every video on YouTube on the subject.
I then bought a few meters of 0.25mm NiChrome wire.
At first I thought I'd just need a vertical bench top cutter.
An unwanted shelf was liberated from a kitchen unit to use as the base, a couple of 2x1's were screwed underneath to give clearance for the wire connection. A piece of MDF was used for the upper arm.
To give some adjustment underneath a block of wood with a screw in one end for the wire to wrap around was screwed to the base in just one position so the block could pivot.
I drilled a clearance hole in the end of the upper arm for a long bolt & put a small slot in the end of the bolt to wrap the wire around, a washer and spring were used to give the wire some tension. When the wire heats up it expands so you need something to maintain the tension.
Wrap the NiChrome wire on the screw underneath, put it through a hole cunningly placed in line in the base & up to the slot in the bolt in the upper arm, compressing the spring at the same time.
Now that's all sorted get 2 pieces of normal wire, attach one to the screw underneath & one to the bolt on top.
This is the bit where I found conflicting information on YouTube, people used all sorts of different things to power their cutters, batteries, pc power supplies & resistors, model railway power supplies, laptop chargers etc etc, everyone recommend different voltages & amperages. Luckily my Lipo charger can be sued as a power supply so I started messing with volt/amp settings, I didn't want the wire to glow red as that's too hot, I ended up using 10 volts & 2 amps, it works a treat.
Unfortunately this cutter does have its limitations, throat depth etc.
I decided I needed a hand held cutter, going off what I'd learned from the bench cutter this was a doddle.
2 pieces of 7mm steel bar 300mm long, 2mm hole in each end.
1 piece of 30mm square pine for the handle, 8mm hole through each end.
Smack bars through holes in handle, get 2 pieces of normal wire, attach one to each hole at handle end, I just twisted them on & taped everything over.
Now here's the trick with the other end, when you attach the NiChrome wire make sure you squeeze the bars together a little to give the tension, attach the other ends of the wires to the power supply & away you go.
Like any tool I guess you get better with practice, lol
Cheers
Wayne

Attached Photos - Click To View Large

Response by BOATSHED on the 8th May 2017
I see that's a battery charger. I was thinking about a 12v power supply box I have. Can this be done from any lipo battery charger. I don't want to kill my one by doing something that it wouldn't like. It's an Elysium LX60B.
Response by John on the 8th May 2017
Thanks Wayne, I will have a go at that.

John.
Response by RNinMunich on the 8th May 2017
Hi Boatshed,
the charger will probably handle the job, but why risk it or tie it up with the cutter when you have 12V supply available. What output current can it supply? Sometimes the max. output power is quoted in Watts. Divide this by the 12V and you have the max current it can deliver.

Small mod. suggestion -
I will put an ON(OFF switch in mine, with test terminals on either side so I can check the current drawn with a pocket multimeter.
Bon chance mes amis, 😎

mdlbt.com/28320
Bluebird K7 - Posted: 7th May 2017
Read em & weep lol

https://www.ebay.co.uk/itm/122477912981

1973 Kenner The 6 Million Dollar Man Oscar Goldman

https://www.ebay.co.uk/itm/322506293020

*** VINTAGE 6 MILLION DOLLAR MAN

I'm just on with writing a post on the hot wire cutter
Cheers
Wayne
Response by BOATSHED on the 7th May 2017
I still have the half dolls in my shed waiting to be put in another Hydrofibre Pipedream that I have still got, and they are still wearing the same clothes as in the picture. Well from the waist up. As it's only the top halves I've still got. The company called Hydrofibre changed their name to Stratos but disappeared over 30 years ago. I think. I also have another one of their model boats still in the box awaiting construction the Stratos Interceptor. The Inteceptor is the cabin cruiser and the Pipedream is the racing powerboat. Sorry to have gone off of your Bluebird model, that is looking like a very interesting build. Love it.
Response by BOATSHED on the 7th May 2017
I have just looked up your link. PhewWWWW £136.50p. That's just for one of them. Sorry got to open a new box of tissues.
Response by RNinMunich on the 7th May 2017
Hi Wayne, thanks for the link.
Can't wait to see the videos of Bluebird in action.
Don't worry, I can always send over my salvage tug 😉
Cheers Doug 😎

mdlbt.com/28316
Bluebird K7 - Posted: 7th May 2017
Here's the link to the linear actuator

https://www.ebay.co.uk/itm/282363055991
Cheers
Wayne

Attached Photos - Click To View Large

Response by BOATSHED on the 7th May 2017
I b ought a pair of these 13" dolls. Six million Dollar man. Steve Austin and Oscar Goldman. I cut them in half and put them in a 52" Hydrofibre Pipedream. I found 2 crash helmet pencil sharpeners. Took the pencil sharpeners out and put the helmets on the pair of them Perfect fit. The actually looked good. I wonder how much it would cost to buy those dolls now 30 years or so on.

Showing page 2 of 5   |   Jump to page: 1   2   3   4   5