2017:Lifter - Revision history

ElectricalMain at 22:11, 29 January 2017

2017-01-29T22:11:13Z

← Older revision		Revision as of 15:11, 29 January 2017
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	- Controls: a need a joystick/toggle to ascend/descend, toggle to engage lock, servo/solenoid to relsease flip mechanism (toggle)		- Controls: a need a joystick/toggle to ascend/descend, toggle to engage lock, servo/solenoid to relsease flip mechanism (toggle)



			1/29/2017

			- Controls needed: input to initiate and maintain climber

			- Auto flip out (needs to be actuated, not gravity propelled)

			- Confirmed locking mechanism of a ratchet, pinned between two 1/4-20 bolts

			- Updated CAD model

			- Decided against the use of sensors

ElectricalMain at 02:22, 29 January 2017

2017-01-29T02:22:09Z

← Older revision		Revision as of 19:22, 28 January 2017
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	- In progress: detection of top of rope, brake/lock to prevent descension		- In progress: detection of top of rope, brake/lock to prevent descension

			- Implementing sensors

	- Considering the use of a wratchet and pawl lock (similar to 2016)		- Considering the use of a wratchet and pawl lock (similar to 2016)
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	- Will explore the possibilty of using a rope that does not touch the ground and one that does		- Will explore the possibilty of using a rope that does not touch the ground and one that does

			- Controls: a need a joystick/toggle to ascend/descend, toggle to engage lock, servo/solenoid to relsease flip mechanism (toggle)

ElectricalMain at 02:17, 29 January 2017

2017-01-29T02:17:06Z

← Older revision		Revision as of 19:17, 28 January 2017
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	1/18/2017		1/18/2017

	- Velcro is allowed on ropes, assuming the rope follows all other rope criteria.   See FRC Q & A #6 and #215: https://frc-qa.firstinspires.org/qa/6         https://frc-qa.firstinspires.org/qa/215		- Velcro is allowed on ropes, assuming the rope follows all other rope criteria.   See FRC Q & A #6 and #215: [https://frc-qa.firstinspires.org/qa/6 https://frc-qa.firstinspires.org/qa/6]         [https://frc-qa.firstinspires.org/qa/215 https://frc-qa.firstinspires.org/qa/215]

	- Originally we planned to make a "finger" based climber but we realized that the "fingers" sometimes pushed the rope away instead of catching it.  This made the climber require a longer amount of time to align.		- Originally we planned to make a "finger" based climber but we realized that the "fingers" sometimes pushed the rope away instead of catching it.  This made the climber require a longer amount of time to align.
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	- To circumvent this issue, we designed another prototype.  This second model used velcro to catch a velcro rope.  It is much smaller and easier to assemble, therefore taking up less space and time.  Inspiration was derived from Ri3D 1.0		- To circumvent this issue, we designed another prototype.  This second model used velcro to catch a velcro rope.  It is much smaller and easier to assemble, therefore taking up less space and time.  Inspiration was derived from Ri3D 1.0

	https://www.youtube.com/watch?v=h6_UBzGQM-A		[https://www.youtube.com/watch?v=h6_UBzGQM-A https://www.youtube.com/watch?v=h6_UBzGQM-A]

	- We would also like to implement a "flip" mechanism which would transfer the climber from inside the hopper (most likely) to the outside of the robot, above the bumpers.		- We would also like to implement a "flip" mechanism which would transfer the climber from inside the hopper (most likely) to the outside of the robot, above the bumpers.



			1/28/2017

			- Moving forward with velcro climber

			- Decided on the use of 2x 775Pro Motors with a  Dual Input 35:1 (5:1 and 7:1) Gearbox

			- In progress: detection of top of rope, brake/lock to prevent descension

			- Considering the use of a wratchet and pawl lock (similar to 2016)

			- Rope will be made of a tie down strap with velcro sewn on

			- Will explore the possibilty of using a rope that does not touch the ground and one that does

ElectricalMain at 00:51, 19 January 2017

2017-01-19T00:51:54Z

← Older revision		Revision as of 17:51, 18 January 2017
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	- ~~climber can be placed at any height~~ on ~~robot~~ and ~~still grab~~ a ~~knot compatable with~~ the rope ~~rules~~		1/18/2017

			- Velcro is allowed on ropes, assuming the rope follows all other rope criteria.   See FRC Q & A #6 and #215: https://frc-qa.firstinspires.org/qa/6         https://frc-qa.firstinspires.org/qa/215

			- Originally we planned to make a "finger" based climber but we realized that the "fingers" sometimes pushed the rope away instead of catching it.  This made the climber require a longer amount of time to align.

			- To circumvent this issue, we designed another prototype.  This second model used velcro to catch a velcro rope.  It is much smaller and easier to assemble, therefore taking up less space and time.  Inspiration was derived from Ri3D 1.0

			https://www.youtube.com/watch?v=h6_UBzGQM-A

			- We would also like to implement a "flip" mechanism which would transfer the climber from inside the hopper (most likely) to the outside of the robot, above the bumpers.

ElectricalMain: Created page with "- climber can be placed at any height on robot and still grab a knot compatable with the rope rules"

2017-01-19T00:24:36Z

Created page with "- climber can be placed at any height on robot and still grab a knot compatable with the rope rules"

New page

- climber can be placed at any height on robot and still grab a knot compatable with the rope rules