Australian and New Zealand Fans Of LEGO - Forum
Login to ANZFOL!

Don't have an account? If you're in the Australia and New Zealand region, then why not make one?

It's free, it gets rid of those annoying unrelated ads when browsing the boards, and it only takes a few seconds to set up before you can start posting and discussing LEGO with the great ANZFOL community!

We look foward to seeing you on the boards!


Cheers,


Darth Legois, Captain Zuloo and the ANZFOL team!

Advice on Technical model I am building

View previous topic View next topic Go down

Advice on Technical model I am building

Post by Guest on Sun 01 Nov 2009, 9:00 am

Hi,
A couple of weeks ago I started working on an idea which I have had for a while of a model truck with a lifting arm like what is used to lift large commercial bins. So far I have the truck built and the arm working but not 100% as well as what I would like, the problem I have is with getting the arm to move as far as what I would like and with locking the bin once it is loaded on.

Does anybody on here have much experience with technical gears and building gear boxes? I can upload some photos if that will help.

Paul

Guest
Guest


Back to top Go down

Re: Advice on Technical model I am building

Post by Bodville on Sun 01 Nov 2009, 10:29 am

I'll help if I can Paul, so please post some photo's.

Bodville
Sheep Dog
Sheep Dog

Title : Title hater
Number of posts : 87
Location : Australia
Registration date : 2009-07-08

http://home.netspeed.com.au/mephisto/bodville/default.html

Back to top Go down

Re: Advice on Technical model I am building

Post by Guest on Sun 01 Nov 2009, 11:56 am

Bodville wrote:I'll help if I can Paul, so please post some photo's.

Thanks, I will take some photos tomorrow and see how well I can explain what my problem seems to me.

Paul

Guest
Guest


Back to top Go down

Re: Advice on Technical model I am building

Post by Guest on Mon 02 Nov 2009, 12:28 am

Here are some images legohappy Any advice or ideas would be great.

The truck in it's "driving state"


Bin lifting


The first problem, the bin goes almost 90 degrees when being loaded / unloaded before it starts to touch the ground and go flat.


The second problem, when uploaded it goes too far back from the back of the truck, the ones I have seen in real life stay much closer to the back of the truck when being unloaded.


How I am using gears to do this.


Rear gear - top view.


Rear gear - bottom view.

Guest
Guest


Back to top Go down

Re: Advice on Technical model I am building

Post by Bodville on Mon 02 Nov 2009, 2:39 pm

I had to do some searching for images around the www as I rarely see trucks like this and couldn't remember how it worked.
The problem appears to be the anchor point of the arm is too far back.
It should attach to the truck just in front of the rear wheels. That way when the arm is raised it will slide along the back of the truck. When the arm is pointing straight up almost the entire skip should be off the back.
The dimensions of the arm look a bit out, try making the main part of the arm shorter (which you will need to do if it's attached to the truck further up) and make the upper section with the hook, longer.
The best way to get real life models right is to look at lots of photo's. Hope that helps. Good luck with it.

Bodville
Sheep Dog
Sheep Dog

Title : Title hater
Number of posts : 87
Location : Australia
Registration date : 2009-07-08

http://home.netspeed.com.au/mephisto/bodville/default.html

Back to top Go down

Re: Advice on Technical model I am building

Post by Guest on Mon 02 Nov 2009, 10:13 pm

Bodville wrote:I had to do some searching for images around the www as I rarely see trucks like this and couldn't remember how it worked.
The problem appears to be the anchor point of the arm is too far back.
It should attach to the truck just in front of the rear wheels. That way when the arm is raised it will slide along the back of the truck. When the arm is pointing straight up almost the entire skip should be off the back.
The dimensions of the arm look a bit out, try making the main part of the arm shorter (which you will need to do if it's attached to the truck further up) and make the upper section with the hook, longer.
The best way to get real life models right is to look at lots of photo's. Hope that helps. Good luck with it.

Thanks for the ideas and advice, I made some changes last night after looking at some of these types of trucks on the internet and I think it works much better now. I will post some photos up later on.

Paul

Guest
Guest


Back to top Go down

Re: Advice on Technical model I am building

Post by Sponsored content Today at 10:07 am


Sponsored content


Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum