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Author Topic: New accelerating lego magnet motor on youtube  (Read 54862 times)

ken_nyus

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Re: New accelerating lego magnet motor on youtube
« Reply #30 on: January 31, 2008, 08:49:40 PM »
Here is the official Lego free CAD program...

http://ldd.lego.com/


Omnibus

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Re: New accelerating lego magnet motor on youtube
« Reply #31 on: January 31, 2008, 08:59:46 PM »
@ken_nyus,

OK, I stand corrected, then, if they have individual parts sold separately. Do you think when looking at the video there are Lego parts available on their side that would fit the construction? Maybe that'll help @Yadaraf.to assemble it easier.

Low-Q

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Re: New accelerating lego magnet motor on youtube
« Reply #32 on: January 31, 2008, 09:03:49 PM »
.
@ All

I am starting to replicate the Lego device. :o
...
If anyone has suggestions, please drop them in the box.  ;D

When you post the video of it going, just make sure that it plays in reverse!  ;)

Animation Shop is a powerful software to make video loops. You can hardly see the loop if you're lucky. Then you post it on Youtube, then a very excited @hartiberlin finds it and creates a link to it in this forum ;D

Vidar

Yadaraf

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Re: New accelerating lego magnet motor on youtube
« Reply #33 on: January 31, 2008, 09:15:40 PM »
If you grab a few screen shots from the Lego vid, and use the two base plates as "grids" you could probably dimension the device very quickly.  Add to that, Lego blocks and plates have standard 1" features, and 1/2" centered studs (I think ... I'm picking some up today).

I've started the reverse engineering process, but a second independent effort would be appreciated.  ;)

...

Cheers,

Yada ..
.



Hey Yada,

I looked at legos a little while back.

They do indeed have standard units, but they are their own special Lego units, they have a name for them I forget what it is. The lego website is very helpful. The Lego units unfortunately do not fit into any other standard units.

On the Lego website they also have their own free Lego design software, sort of a basic CAD program for Lego builders. An interesting feature is you can design your Lego thing in this software, and then you can with a few clicks send an order to them and they will ship you all the parts that make up your design. I think you can even pay them to assemble it and package it in a box for you like a custom "toy".

It is also interesting that the individual Lego parts are made to a very, very high standard of precision.

@ ken_nyus

Ken,

Thanks for the great feedback.  :)   I'm new to Lego, but see what you're saying about feature sizes.  I have to change my original assumptions.  No problem.  It appears that the magnet size will be different from what I suggested earlier, which is good, because I was having a problem finding educational magnets of that size.

I'm off to pick up some blocks and plates, so later today I will have a better basis for dimensioning this beast.

A better video would help.  :-\


Cheers,

Yada ..
.

Yadaraf

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Re: New accelerating lego magnet motor on youtube
« Reply #34 on: January 31, 2008, 09:30:07 PM »
.
@ All

I am starting to replicate the Lego device. :o
...
If anyone has suggestions, please drop them in the box.  ;D

When you post the video of it going, just make sure that it plays in reverse!  ;)

Animation Shop is a powerful software to make video loops. You can hardly see the loop if you're lucky. Then you post it on Youtube, then a very excited @hartiberlin finds it and creates a link to it in this forum ;D

Vidar

@ Low-Q

Vidar,

I hear what you're saying.  For the upcoming video, I'm taking suggestions for the music that will play in reverse in the background.   ;D 

The device looks intriguing, nonetheless, and we might glean some obscure principle from replicating it.

I don't have a machine shop and I don't have beaucoup $$$$, but I do have spare time, which this "low-budget" project will most assuredly kill.


Cheers,

Yada ..
.

hanglow

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Re: New accelerating lego magnet motor on youtube
« Reply #35 on: January 31, 2008, 10:36:27 PM »
I have already replicated this twice. I used plexi glass to create it. As mentioned earlier in this post. It does not work. I spent hundreds of dollars on tools and magnets. I have video clips of it but didn't post it.

Omnibus

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Re: New accelerating lego magnet motor on youtube
« Reply #36 on: January 31, 2008, 10:37:53 PM »
I have already replicated this twice. I used plexi glass to create it. As mentioned earlier in this post. It does not work. I spent hundreds of dollars on tools and magnets. I have video clips of it but didn't post it.

Is it that same construction or is something with gears?

tinu

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Re: New accelerating lego magnet motor on youtube
« Reply #37 on: January 31, 2008, 11:03:08 PM »
I have already replicated this twice. I used plexi glass to create it. As mentioned earlier in this post. It does not work. I spent hundreds of dollars on tools and magnets. I have video clips of it but didn't post it.


Imho, you shall speak much louder about your experience.

buggyirk

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Re: New accelerating lego magnet motor on youtube
« Reply #38 on: January 31, 2008, 11:39:23 PM »
I have already replicated this twice. I used plexi glass to create it. As mentioned earlier in this post. It does not work. I spent hundreds of dollars on tools and magnets. I have video clips of it but didn't post it.



This is my first post on this forum. Woohoo! Well I think I speak for us all when I say, please post the videos of your replication attempt.

I am also posting because I have made a digital replication of the motor without all the pullies and whatnot in lego digital designer. I know, I know...........Thanks for nothing! But I figured I would post it for someone else to continue. I don't really have the time to finish and I am having a hard time finding the pullie pieces. I am also pretty sure of my measurements(counted all the nubbies :D) I am attaching the file in a rar archive because I can't attach lxf files. I am also attaching some screenshots. Have at it.

Yadaraf

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Re: New accelerating lego magnet motor on youtube
« Reply #39 on: January 31, 2008, 11:40:04 PM »
I have already replicated this twice. I used plexi glass to create it. As mentioned earlier in this post. It does not work. I spent hundreds of dollars on tools and magnets. I have video clips of it but didn't post it.


@ hanglow

I see from your earlier post that you used gears. 

Did you ever replicate with bands, like in the original?

Cheers,

Yada ..
.

Yadaraf

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Re: New accelerating lego magnet motor on youtube
« Reply #40 on: January 31, 2008, 11:44:20 PM »
I have already replicated this twice. I used plexi glass to create it. As mentioned earlier in this post. It does not work. I spent hundreds of dollars on tools and magnets. I have video clips of it but didn't post it.



This is my first post on this forum. Woohoo! Well I think I speak for us all when I say, please post the videos of your replication attempt.

I am also posting because I have made a digital replication of the motor without all the pullies and whatnot in lego digital designer. I know, I know...........Thanks for nothing! But I figured I would post it for someone else to continue. I don't really have the time to finish and I am having a hard time finding the pullie pieces. I am also pretty sure of my measurements(counted all the nubbies :D) I am attaching the file in a rar archive because I can't attach lxf files. I am also attaching some screenshots. Have at it.

 
@ buggyirk

Excellent job!  ;D

I think your stator "anchors" might be too tall, though.

Cheers,

Yada ..
.

buggyirk

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Re: New accelerating lego magnet motor on youtube
« Reply #41 on: February 01, 2008, 12:00:20 AM »
I have already replicated this twice. I used plexi glass to create it. As mentioned earlier in this post. It does not work. I spent hundreds of dollars on tools and magnets. I have video clips of it but didn't post it.



This is my first post on this forum. Woohoo! Well I think I speak for us all when I say, please post the videos of your replication attempt.

I am also posting because I have made a digital replication of the motor without all the pullies and whatnot in lego digital designer. I know, I know...........Thanks for nothing! But I figured I would post it for someone else to continue. I don't really have the time to finish and I am having a hard time finding the pullie pieces. I am also pretty sure of my measurements(counted all the nubbies :D) I am attaching the file in a rar archive because I can't attach lxf files. I am also attaching some screenshots. Have at it.

 
@ buggyirk

Excellent job!  ;D

I think your stator "anchors" might be too tall, though.

Cheers,

Yada ..
.

I think your right it might be two sets of 6 flat pieces instead of two sets of 3 blocks for the stator anchors. I do think this tool will come in very handy for replication purposes. I mean no more messing with measurements, just look at the lego plans and there ya go. I mean this could even be a lego set a toddler could build. hehehe. If this does work like the whipmag and it's this easy to build, I will be very happy.

Low-Q

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Re: New accelerating lego magnet motor on youtube
« Reply #42 on: February 01, 2008, 12:52:12 AM »
Why must everybody use neo-magnets in motor experiments? It should definitly be more inexpencive to use ferrite magnets instead? If it works, then make a new motor with neos.

Vidar

buggyirk

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Re: New accelerating lego magnet motor on youtube
« Reply #43 on: February 01, 2008, 01:46:02 AM »
Here is a new one I did with stator holders that aren't as high.  ;)

Yadaraf

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Re: New accelerating lego magnet motor on youtube
« Reply #44 on: February 01, 2008, 03:41:48 AM »
Here is a new one I did with stator holders that aren't as high.  ;)

@ buggyirk

You mentioned that you would try "two sets of 6 flat pieces instead of two sets of 3 blocks for the stator anchors," but I still count two sets of 3 blocks.  However, the height and magnet clearance look better. 

Using Lego stud centers of 5/16" as a rule, I think the magnets are around 1.25" x 0.625" x 0.625".  I'm trying different sampling techniques to obtain more accurate dimensions. The stator mags seem to just clear the supports, so in your drawing the stack of 3 blocks should be around 0.625," perhaps slightly larger.

Q:  What are the dimensions of one of the three stator support blocks?

Now I'm wondering if the "red/blue" objects are really magnets.  Their dimensions are so close to Lego specifications that they could simply be red and blue Lego blocks snapped together.  I'm looking at the Lego block library to determine if such a plain, featureless object could be created.

Keep up the great work.

Cheers,

Yada ..
.