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First set of waterjet parts arrived
These are for the drive pods
http://i1184.photobucket.com/albums/...psrypldy02.jpg
I had the sprockets waterjet as well. You can get the number of teeth I wanted but they still need machining therefore I felt as easy to get them waterjet cut. K-cut only has toolsteel in 1/4 thick (its 1/2 chain). They wont wear out. I did forget to add some lightening holes. Since its toolsteel I'm not going to manually drill
Here is one of the sprockets mounted on the wheel
http://i1184.photobucket.com/albums/...psh1zilusq.jpg
Finally welded up the drive pods. I can now start seeing what it looks like
http://i1184.photobucket.com/albums/...psacmhaqcu.jpg
Next step will be a basic baseplate to do some drive tests
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Ace looking bits you have there, would be interesting to see it combined with its baseplate to get a sense of how it looks in full!
I tried to shop online with k-cut, but the "buy online" button doesnt do anything for me. Shame, I believe they could help me greatly in my ventures!
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thanks
Just email john@kcut.co.uk
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well I got fed up of breaking the drive belts on Spur 3
Its an annoying habit but I have a solution
Its also a tyre shredder
Meet the layout of Spur 4
http://i1184.photobucket.com/albums/...ps0mmkfdso.jpg
and before anyone says it there is more brushless than any featherweight deserves
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What reduction are you running for the drive? Doesn't look like it'll be enough for the size of wheels. Those are some huge out runners though for the weight, so yea, maybe you'll be fine.
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Its not lots of reduction 5:1 , Spur 3 ran 5.5 : 1 on 2 motors
Its fine. The motors are low KV but so much torque for a feather that cogging is not a concern
I've ran smaller motors on similar reduction (Olaf) which was great
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Many things have got in the way of getting the bot this far
Finally took it for a test drive tonight.
Not quite finished yet. On temporary wheels and tyres which are rock hard. Strange though, they do wear quickly ;)
It will need magnets in the arena thats for sure. Comes in at 11.6 Kg. Weight left for scope, side panels, lid and a few electrons for the battery
Have a lifter assembly if I can squeeze the weight to replace the scoop
http://i1184.photobucket.com/albums/...pszm2bnwp4.jpg
and test video
https://youtu.be/3-aoZHdf0Yg
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Its been a while
Ran Spur 4 at a live event with the temporary wheels , they were awful
It also broke a pinion weld and went down to 3 wheel drive :(
Rewelded the pinion
Replaced the wheels with contact wheels - strangely 100mm wheels are quite expensive and took time for them to come from China
When they did one didnt match, so had to re-order to get 4 matching
Finally got a full set
https://i.imgur.com/GsMR5vH.jpg
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The other thing I have been working on is a heavyweight Spur 4
Made up 4 drive pods using contact wheels, 6368 motors
They use HTD5 belt and mod 2 gearing. This allows me to get the packaging I wanted
https://i.imgur.com/TMnQLcH.jpg
https://i.imgur.com/mlWUtDZ.jpg
Did a test of one fully assembled. Seems fine and no real load. The TZ85 survived (I will be using focbox ESC in the bot]
https://youtu.be/IvXqGNshU6c
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Racerstar 6368 motors ?
have you fitted sensors?