Rookie team in need of scaling advice

[Kevin Leonard]

Scissor lifts are difficult and prone to breakage is the problem. Whenever it is possible to use a different style of lifter, I would do so.

However, scissor lifts are pretty good under a certain set of circumstances- if you need to achieve a lot of extension, but retract to a very small height.

Now, the reason most teams are using winches is because once you lift your robot up- you need to stay up.
I would expect that if you were to lift yourself up with a DART, it would backdrive as soon as the match ended, and you'd end up below the climb level. I could be wrong, however, so don't necessarily take my word as gospel.

Some ideas I would check out if I were you are the WCP 2016 MCC: http://www.wcproducts.net/mcc2016/

They use a telescoping arm and have quite a bit of documentation on how you can do the same.

Additionally, I don't know whether or not your team has decided to go under the low bar, but if you didn't, then climbing is pretty easy, as you can start at 54" tall and you need to reach up to 76" to climb.

If you have any questions or anything, feel free to PM me or ask more questions in this thread.

[Ty Tremblay]

Take all the time and effort you would put into a climber, and put it into practice and improvements. Drive the heck out of your bot and break stuff. It's easier to break and fix now than it will be at competition.

I like to think about it in terms of effort required per point. Climbing is hard and is only worth a net gain of 10 points. Practicing with your robot and getting as many hours as you can on it is much easier and has much more points potential.

[dmorewood]

I agree and disagree with everyone else on this thread. Yes I don't think that for a rookie a climb is necessary or even that time efficient when you guys could be working on your shooter. On the other hand for the non rookie teams on this that think that a climb is not necessary to have a bot that people will want once you get to high level regionals and St. Louis...I completely disagree.

[mathking]

The WCP design is good to look at because it is one of the designs that deals with the most difficult part of scaling this year: Staying within your frame perimeter. If your robot tips it has to tip tail up toward the tower (and not too much) or you will quickly be out of your frame perimeter.

We have had some very successful climbing bots (in particular in 2004 and 2010) in the past, but put scaling at the bottom of our priority list this year because of its relative difficulty and relatively low point value. That said, if you have achieved most of your other goals there is no reason not to try to build a scaling device. It does not have to interfere with practice and other development. In 2010 we got an inexpensive manual winch from Lowes and took off the ratchet and sprocket. We welded the sprocket onto our winch spool (but you could use the spool from a winch and bolt on a hub) and attached the ratchet with a spring. Simple and effective.

[Citrus Dad]

Originally Posted by Ty Tremblay

Take all the time and effort you would put into a climber, and put it into practice and improvements. Drive the heck out of your bot and break stuff. It's easier to break and fix now than it will be at competition.

I like to think about it in terms of effort required per point. Climbing is hard and is only worth a net gain of 10 points. Practicing with your robot and getting as many hours as you can on it is much easier and has much more points potential.

We're thinking along these lines. The GDC probably should have put more points on the line (like it should have in 2013 with the pyramid climb) if they wanted it to be more central. It is MUCH more important that you develop a reliable means of challenging the castle at the end--and that's more difficult than you might think!

[cantdecide]

Originally Posted by Ty Tremblay

I like to think about it in terms of effort required per point. Climbing is hard and is only worth a net gain of 10 points.

Kind of offtopic, but we recently had an argument about exactly that with my team. I argued that the gain was 10 points¹, but my teammate argued that it was 15 points².

¹: The game reveal clearly suggests that the 5 point bonus from challenging a tower is removed when you scale it, and the whole sum becomes 15 points(5 is crossed out and 15 takes its place). However:
²: As far as I can see the game manual only has a table(page 3 of the manual) which says that challenging is worth 5 points, and scaling is worth 15. It says nothing about the scaling bonus negating the challenging bonus.

Which one is correct? Can you provide sources?

Here's the part of the video that shows 5 getting replaced by 15.

[Ty Tremblay]

Originally Posted by cantdecide

Kind of offtopic, but we recently had an argument about exactly that with my team. I argued that the gain was 10 points¹, but my teammate argued that it was 15 points².

¹: The game reveal clearly suggests that the 5 point bonus from challenging a tower is removed when you scale it, and the whole sum becomes 15 points(5 is crossed out and 15 takes its place). However:
²: As far as I can see the game manual only has a table(page 3 of the manual) which says that challenging is worth 5 points, and scaling is worth 15. It says nothing about the scaling bonus negating the challenging bonus.

Which one is correct? Can you provide sources?

Here's the part of the video that shows 5 getting replaced by 15.

3.1.4 THE TOWER

A ROBOT has CHALLENGED the TOWER if, at the conclusion of the MATCH, the ROBOT is fully
supported by the TOWER, but hasn’t met the criteria for SCALING the TOWER.

Glossary:

CHALLENGE an act performed by a ROBOT, such that at the conclusion of the MATCH, the ROBOT
is fully supported by the TOWER, but hasn’t met the criteria for SCALING the TOWER

Once you've scaled, you're no longer challenging. Thus, you can't get points for both.

[anishde]

Originally Posted by Ty Tremblay

3.1.4 THE TOWER


Glossary:


Once you've scaled, you're no longer challenging. Thus, you can't get points for both.

You get 5 points for challenging, and 15 points for climbing. The main debate earlier on CD was about whether or not you get TWENTY points for climbing, adding the two scores (which was easily proven false).