Robot Arm C

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Bazinga+
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Re: Robot Arm C

Post by Bazinga+ »

ScottMaurer19 wrote:
Bazinga+ wrote:Here is a video of my 2016-2017 robot arm with which i was able to get a perfect score fairly consistently:

https://www.youtube.com/watch?v=27ws5wOY57g

Enjoy!
What would the components in an such as that cost?

Very impressive design. Nice to finally see a perfect score.
I believe it ended up being about 300-400$ for everything, probably less. Here is the parts list for the dispenser 3d-printer-like assembly if anyone's interested:

2x Timing Belt and pulley- https://www.amazon.com/Aluminum-Pulley- ... iming+belt

2x Stepper motor mounts- http://www.ebay.com/itm/US-Shipping-Nem ... SwnFZXVYWW

2x Stepper motors- http://www.ebay.com/itm/US-Ship-Short-B ... 1602354895

6x Linear rail shafts- http://www.ebay.com/itm/New-4pcs-8mm-SK ... SwLzdWRCiN

2x 40cm Steel Shaft- http://www.ebay.com/itm/like/1417765615 ... noapp=true

2x linear bearing blocks- https://www.amazon.com/dp/B018X9NH04/re ... B00IJ67BJA

1x Large linear bearing block- https://www.adafruit.com/products/1180

As for the gripper arm we used 3-270 degree servos - https://www.amazon.com/gp/product/B018E ... UTF8&psc=1
and servo blocks for each joint to ensure stability - https://www.amazon.com/ServoBlocks-Hub- ... rvo+blocks
Innovation =/= success
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Re: Robot Arm C

Post by AlbatrossTree »

Bazinga+ wrote:
ScottMaurer19 wrote:
Bazinga+ wrote:Here is a video of my 2016-2017 robot arm with which i was able to get a perfect score fairly consistently:

https://www.youtube.com/watch?v=27ws5wOY57g

Enjoy!
What would the components in an such as that cost?

Very impressive design. Nice to finally see a perfect score.
I believe it ended up being about 300-400$ for everything, probably less. Here is the parts list for the dispenser 3d-printer-like assembly if anyone's interested:

2x Timing Belt and pulley- https://www.amazon.com/Aluminum-Pulley- ... iming+belt

2x Stepper motor mounts- http://www.ebay.com/itm/US-Shipping-Nem ... SwnFZXVYWW

2x Stepper motors- http://www.ebay.com/itm/US-Ship-Short-B ... 1602354895

6x Linear rail shafts- http://www.ebay.com/itm/New-4pcs-8mm-SK ... SwLzdWRCiN

2x 40cm Steel Shaft- http://www.ebay.com/itm/like/1417765615 ... noapp=true

2x linear bearing blocks- https://www.amazon.com/dp/B018X9NH04/re ... B00IJ67BJA

1x Large linear bearing block- https://www.adafruit.com/products/1180

As for the gripper arm we used 3-270 degree servos - https://www.amazon.com/gp/product/B018E ... UTF8&psc=1
and servo blocks for each joint to ensure stability - https://www.amazon.com/ServoBlocks-Hub- ... rvo+blocks

Nice job!

How did you get the template the exact thicknes of a penny?
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Re: Robot Arm C

Post by Bazinga+ »

AlbatrossTree wrote:
Bazinga+ wrote:
ScottMaurer19 wrote:
What would the components in an such as that cost?

Very impressive design. Nice to finally see a perfect score.
I believe it ended up being about 300-400$ for everything, probably less. Here is the parts list for the dispenser 3d-printer-like assembly if anyone's interested:

2x Timing Belt and pulley- https://www.amazon.com/Aluminum-Pulley- ... iming+belt

2x Stepper motor mounts- http://www.ebay.com/itm/US-Shipping-Nem ... SwnFZXVYWW

2x Stepper motors- http://www.ebay.com/itm/US-Ship-Short-B ... 1602354895

6x Linear rail shafts- http://www.ebay.com/itm/New-4pcs-8mm-SK ... SwLzdWRCiN

2x 40cm Steel Shaft- http://www.ebay.com/itm/like/1417765615 ... noapp=true

2x linear bearing blocks- https://www.amazon.com/dp/B018X9NH04/re ... B00IJ67BJA

1x Large linear bearing block- https://www.adafruit.com/products/1180

As for the gripper arm we used 3-270 degree servos - https://www.amazon.com/gp/product/B018E ... UTF8&psc=1
and servo blocks for each joint to ensure stability - https://www.amazon.com/ServoBlocks-Hub- ... rvo+blocks

Nice job!

How did you get the template the exact thicknes of a penny?
We had it laser cut by Ponoko out of plastic that was the same thickness as the penny.
Innovation =/= success
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Re: Robot Arm C

Post by peartree423 »

Hey in case anyone cares to know the top 2 scores for Robot Arm at our state competition (Missouri) were 350 and 344
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Re: Robot Arm C

Post by windu34 »

To Jander more specifically:
I know that this is not the place for official clarifications and such etc etc...
Under the SO laser policy: "Laser and high-brightness LED devices are intended to be operated under the control of a human operator at all times"
Would an aiming laser aimed at the target turned on and off autonomously by a robot be illegal?
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Re: Robot Arm C

Post by bernard »

windu34 wrote:To Jander more specifically:
I know that this is not the place for official clarifications and such etc etc...
Under the SO laser policy: "Laser and high-brightness LED devices are intended to be operated under the control of a human operator at all times"
Would an aiming laser aimed at the target turned on and off autonomously by a robot be illegal?
Yes, it is illegal and you've quoted the exact section it violates.
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Re: Robot Arm C

Post by RoboStudent »

In terms of Idaho, the highest scores were 501 and 117 (Mine).
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Re: Robot Arm C

Post by ScottMaurer19 »

RoboStudent wrote:In terms of Idaho, the highest scores were 501 and 117 (Mine).
Was this using National scoring? I don't believe that the state scoring allows for anything above a mid-400.
Solon '19 Captain, CWRU '23 
2017 (r/s/n):
Hydro: 3/5/18
Robot Arm: na/1/1
Rocks: 1/1/1

2018 (r/s/n):
Heli: 2/1/7 
Herp: 1/4/4
Mission: 1/1/6
Rocks: 1/1/1
Eco: 6/3/9

2019 (r/s/n):
Fossils: 1/1/1
GLM: 1/1/1
Herp: 1/1/5
Mission: 1/1/3
WS: 4/1/10

Top 3 Medals: 144
Golds: 80
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Re: Robot Arm C

Post by bernard »

ScottMaurer19 wrote:
RoboStudent wrote:In terms of Idaho, the highest scores were 501 and 117 (Mine).
Was this using National scoring? I don't believe that the state scoring allows for anything above a mid-400.
Please see viewtopic.php?f=244&t=10439#p308794.
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Re: Robot Arm C

Post by ScottMaurer19 »

bernard wrote:
ScottMaurer19 wrote:
RoboStudent wrote:In terms of Idaho, the highest scores were 501 and 117 (Mine).
Was this using National scoring? I don't believe that the state scoring allows for anything above a mid-400.
Please see viewtopic.php?f=244&t=10439#p308794.
My bad. I'm still thinking invitational scoring.
Solon '19 Captain, CWRU '23 
2017 (r/s/n):
Hydro: 3/5/18
Robot Arm: na/1/1
Rocks: 1/1/1

2018 (r/s/n):
Heli: 2/1/7 
Herp: 1/4/4
Mission: 1/1/6
Rocks: 1/1/1
Eco: 6/3/9

2019 (r/s/n):
Fossils: 1/1/1
GLM: 1/1/1
Herp: 1/1/5
Mission: 1/1/3
WS: 4/1/10

Top 3 Medals: 144
Golds: 80
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