Bruce
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- earthwormjim
- Posts: 1190
- Joined: Thu Sep 16, 2010 4:57 pm
- Location: Secret Undisclosed Moonbase Location
Bruce
Thought I would start a topic on Bruce,as I am going to start again with him.
Hope no one minds.
I have stripped off all the bodywork,and had a look at the drive servos,as it has been possibly as much as 10 years sinc the last time they were looked at properly.
The label is long since gone,but they are fairly unique servos,due to the molding where the shaft exits.
I can't honestly remember the exact mod,but the lego output shart is epoxy'd onto one of the gears,and I think that at least 2 reduction gears have been removed,and there is a 3mm nut used as a washer to fill the space where the gears used to be...
I am going to rebuild Bruce in a similar fashion,but with an eye on being a little more robust,(hopefully!)
Cheers,James
Hope no one minds.
I have stripped off all the bodywork,and had a look at the drive servos,as it has been possibly as much as 10 years sinc the last time they were looked at properly.
The label is long since gone,but they are fairly unique servos,due to the molding where the shaft exits.
I can't honestly remember the exact mod,but the lego output shart is epoxy'd onto one of the gears,and I think that at least 2 reduction gears have been removed,and there is a 3mm nut used as a washer to fill the space where the gears used to be...
I am going to rebuild Bruce in a similar fashion,but with an eye on being a little more robust,(hopefully!)
Cheers,James
- earthwormjim
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- joey_picus
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It's still one of the best built fleaweights I've ever seen at the risk of sounding a bit noobish, how did you get the lego adaptor to sit centrally on the gear?
Joey McConnell-Farber - Team Picus Telerobotics - http://picus.org.uk/ - @joey_picus
"These dreams go on when I close my eyes...every second of the night, I live another life"
"These dreams go on when I close my eyes...every second of the night, I live another life"
- earthwormjim
- Posts: 1190
- Joined: Thu Sep 16, 2010 4:57 pm
- Location: Secret Undisclosed Moonbase Location
Pure coincidence! The shaft fits perfectly through the hole in the casing,and the shoulder on the shaft fits snuglt against the inside of the casing too.So I put a small dab of epoxy on the gear,attached the shaft,then put the casing on.When the epoxy had dried,I opened the casing,and added a load more epoxy to make the joint a bit more permanent!Joey wrote:It's still one of the best built fleaweights I've ever seen at the risk of sounding a bit noobish, how did you get the lego adaptor to sit centrally on the gear?
- earthwormjim
- Posts: 1190
- Joined: Thu Sep 16, 2010 4:57 pm
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I have been searching servo pics and stats this morning,and have found Bruces drive servo...
It is available here...
http://www.robotshop.com/eu/gws-pico-st ... n=GoogleUK
For about ?8,(non UK site.)
Or here...
http://www.shop-uk.high-torque.com/inde ... s-GWS.html
For ?18.66,(UK site!)
They are also listed on Pololu's website...
http://www.pololu.com/catalog/product/501
Enjoy!
It is available here...
http://www.robotshop.com/eu/gws-pico-st ... n=GoogleUK
For about ?8,(non UK site.)
Or here...
http://www.shop-uk.high-torque.com/inde ... s-GWS.html
For ?18.66,(UK site!)
They are also listed on Pololu's website...
http://www.pololu.com/catalog/product/501
Enjoy!
- peterwaller
- Posts: 3213
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- Location: Aylesbury Bucks
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I remember them my first ever antweight reobot Combatant started with those for drive. I seem to remember the output shaft was a bit floppy so I put a bearing out side of the wheel to give more support.
http://i109.photobucket.com/albums/n66/ ... 160097.jpg
They were only held together with a piece of heatshrink and the label.
http://i109.photobucket.com/albums/n66/ ... 160097.jpg
They were only held together with a piece of heatshrink and the label.
- earthwormjim
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- Joined: Thu Sep 16, 2010 4:57 pm
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Thats right,Mine are held together with masking tape!peterwaller wrote:I remember them my first ever antweight reobot Combatant started with those for drive. I seem to remember the output shaft was a bit floppy so I put a bearing out side of the wheel to give more support.
http://i109.photobucket.com/albums/n66/ ... 160097.jpg
They were only held together with a piece of heatshrink and the label.
- earthwormjim
- Posts: 1190
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- Location: Secret Undisclosed Moonbase Location
- peterwaller
- Posts: 3213
- Joined: Fri Feb 15, 2002 12:00 am
- Location: Aylesbury Bucks
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I have never used that servo but Galaxy Models sell the arms.
http://www.galaxymodels.co.uk/detail.as ... 9&rootid=2
Strangely they have the pico servo's on offer for ?4.99 at the moment
http://www.galaxymodels.co.uk/detail.as ... 9&rootid=2
Strangely they have the pico servo's on offer for ?4.99 at the moment