Joined: 30 Sep 2006
Posts: 673
Location: Perth, Western Australia
There looks to be plenty of room, they just have to be mounted hemispherically _________________ They say that he crossed the fine line, from insanity to genius.
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
No, the cable tries were when we had the 12V 7Ah SLA. We upgraded to velcro when we also went to battlepacks.
Is this better? I even added the neons from Sidewinder.
Sun Aug 12, 2007 4:45 pm
Nick Experienced Roboteer
Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW
Very neat and compact , the stacked drive motor configuration is sure to drive better. I am still mystified about how the shell and bearing block stays on the inner races without lifting off - what is keeping the bearings together apart from gravity? _________________ Australian 2015 Featherweight champion
UK 2016 Gladiator champion
Sun Aug 12, 2007 4:57 pm
Daniel Experienced Roboteer
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
The locking pin that the doll sits on.
Sun Aug 12, 2007 4:59 pm
Daniel Experienced Roboteer
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
Today I brought myself a set of mower blades and then drew them into the computer. At first I didn't want to modify the blades at all so I designed holders that would take them. But this turned out to be a bad idea.
So I modified them to be cut down with a bolt grove in the back. The smaller holders should reduce any torque on the robot during impacts and stop the robot from flipping. Looks like a flower too, so that's more pretty.
Wed Aug 15, 2007 8:22 pm
Daniel Experienced Roboteer
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
I've got another idea. Does anyone know where I can get a cultivator, seeder or offset disc? Can't find them on ebay.
I still have another offset disc floating around somewhere... Anything specific you require from it? _________________ https://www.halfdonethings.com/
Thu Aug 23, 2007 8:53 am
Daniel Experienced Roboteer
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
nope, just want one.
Thu Aug 23, 2007 11:17 am
Knightrous Site Admin
Joined: 15 Jun 2004
Posts: 8511
Location: NSW
You don't mind if the center is a little out of shape? I know I have one that Andrew tried to heat up and shape in the forge with a sledge hammer. If I don't have one at home, I'll ask around a few locals, there is a lot of them around... _________________ https://www.halfdonethings.com/
Thu Aug 23, 2007 3:47 pm
Daniel Experienced Roboteer
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
This is what I was thinking with a plow disc. Half dome spinner, half wedge. If I put teeth on the edge angled along the floor and small teeth up the disc it would be a good under cutter. And PQ has a good place to sit. I have all the parts except the disc.
Sun Aug 26, 2007 6:34 pm
Valen Experienced Roboteer
Joined: 07 Jul 2004
Posts: 4436
Location: Sydney
watch for gyro effects when turning. _________________ Mechanical engineers build weapons, civil engineers build targets
Sun Aug 26, 2007 7:06 pm
Nick Experienced Roboteer
Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW
Looks top heavy - watch for getting flipped frequently . _________________ Australian 2015 Featherweight champion
UK 2016 Gladiator champion
Sun Aug 26, 2007 7:10 pm
Daniel Experienced Roboteer
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
Flipped? With the blades inline with the axial there should be minimal reaction torque. In fact the bearings are a lot closer to the center of gravity then on Jolt or Badger. I'm less worried about flipping with this design then with the dome further up the page. Hitting something on the down stroke would be the only concern.
And gyro forces shouldn't be to much to cause problems with steering as it should only hit 1500rpm at a generous estimate.
My brother asked to add the 62cm mower blade I had sitting around. The computer still says 10.8kg with both models. Wire, solenoid, teeth and bolts should fill up the rest of the weight.
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