Bruce

All things small and scratchy.

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earthwormjim
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Post by earthwormjim »

Joey wrote:I find it rather odd that 'Bruce' is referred to with feminine pronouns :P a bit Blackadder in nature perhaps...
LOL! I hadn't noticed!! :o

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earthwormjim
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Post by earthwormjim »

As for mechanical connections,weight isnt the issue.The uprights will need to be remade I think,there is just not enough material to fix to. I may try to use some wire,fibreglass sheet and resin to make the joints. :-?
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alasdair
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Post by alasdair »

Wow! precision engineering or what?! :D

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earthwormjim
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Post by earthwormjim »

alasdair wrote:Wow! precision engineering or what?! :D
Very nice of you to say so! But it is a little rough around the edges,if you look close enough,as it is mainly done using files and some wet and dry sandpaper!
I think that drilling a tiny hole in the chassis pieces,then sewing some thin wire through the holes to tie the pieces together,then epoxying the lot together might be the way foreward.I used to use that method to get the curve to hold when building model boat hulls!
Worth a try,anyway! :)

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earthwormjim
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Post by earthwormjim »

I got the new servos for bruce,not bad for 4.99 each!!
from here...
http://www.galaxymodels.co.uk/detail.as ... 9&rootid=2
This is what they look like...
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I thought I would explain how the mod was done.I think it is pretty painless,and the result is a tiny and fast drive motor.
The mod to the servo couldnt be easier,no messing around with pots!
I removed the two final gears,which also removes the part that turns the pot,and also speeds up the output loads.
Here is the modded servo.The removed gears are in the foreground...

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Then you just epoxy a lego axle onto the final gear...
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This is a final modded servo...
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Just a spare nut,added to the other shaft to take up the space taken by the other removed gear

The result is not very powerful,but pretty fast for such a small unit. :D

josh
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Post by josh »

although there is no gear to adjust the pot i would put a bit of glue into it as it could move from vibrations and its a pain to get inside the servo at an event to re-adjust the pot.
RPD International
www.RPDintl.com

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earthwormjim
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Post by earthwormjim »

Yep,that does sound like good advice. :)

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earthwormjim
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Post by earthwormjim »

I finished modding Bruces new drive servos today.:)
I have trimmed down the wheels too,from the lego original,on the left,to the trimmed finished article on the right.

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20 mins with a stanley knife and a small file.

haz
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Post by haz »

nicey nicey zoo zoo :D hmm smaler wheels less speed eh?

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Jonny
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Post by Jonny »

Noice Noice Noice
the mighty boosh.
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