NOTE: The style guide dictates that all headings and page titles are in sentence case.
Guide:Advanced brown techniques/Retrievers
From Fantastic Wiki
Contents |
[edit] Horizontal Retrievers
This article is part of the Advanced Brown Guide. Most of the Advanced Brown Guides have been dealing with grabbing the goal ball when it is below you. There are many ways to retrieve a goal piece from a far horizon away, here are a few examples you can tinker with.
[edit] Harpoon Retrievers
This is just a slightly more complicated version of the example in the Useful Designs section. Only use this if there is a ledge to throw a weight off of close to the build area. Otherwise its very fast and effective.
Video Tutorial: http://www.youtube.com/watch?v=F7jg7hm9ekw By IGLima
- Add Weight, use about 20-25 sticks, You'll need a good amount for this.
- Build your basic arm. [1]
- Attach the weight to the basic arm frame as shown; also add a poker to the arm. [2]
- Add a chain from the "Poker" on the arm, then attach a second poker to the end of the chain [3]. Now you have your basic harpoon gun.(It is possible to have 3+ pokers on a harpoon, but is tweak intensive.)[4]
- Build the basket and tweak so that the harpoon grabs the goal piece, then falls backwards, like this. [5] Makes for a very fast win, but is not suitable for some occasions. The longer you make the chain and the poker attached to it, the farther the basket will go.
[edit] Troubleshooting
- the second "poker" attached to the chain wont fly through the air right!
- Keep tweaking the right joint up and down till it goes parallel through the air to the first poker.
- The ball/rectangle doesn't have enough time to fall into the basket before it gets pulled back.
- adjust the corner of the contraption closest to the weight away from the basket. This causes a slight delay in the weight tipping the contraption over.
If you encounter any problems, add your problem and the most sensible solution in this section.
[edit] Examples
By ~Jon~
By Lord Hamybal
By IGLima
If you have any designs/practice levels, please add them here.
[edit] Rock Arms
Credit to RockstarM for the concept This is good for grabbing goal pieces over walls, its pretty reliable in my experience.
- Add weight, the heavier the better IMO.
- Add the frame, one of the horizontal rods must be a wood rod. [12] Double over the wood rod to prevent phasing if that happens.
- Build a triangle extending to the far 3 corners of the build area. [13]
- Attach a wood rod from the bottom vertex of the triangle, to the left gap of the build area. Then attach a chain from the end of the rod to the weight. [14]
- Attach a rod from the top of the frame from step 2 to the right-angle vertex of the triangle from step 3. Then attach a triangle to the wood rod from step 4. [15] Its really not as complicated as it sounds.
- attach a basket to the far end of the triangle from step 3 and tweak to twin. [16]
[edit] Troubleshooting
If you encounter any problems, add your problem and the most sensible solution in this section.
[edit] Examples
By RockstarM [17]
By epsdude [18]
If you have any designs/practice levels, please add them here.
[edit] Rectangle Retrievers
Credit to Asks & Entity for the design concept.
Educational Video A big thanks to gleeson9 for the video!
- Add weight as usual, 25 sticks should do it. More or less depending on the size of your contraption. Keep in mind you need a ledge for this contraption.
- Make a triangle, notice how the side pointing toward the goal piece is raised up. [19]
- Add your grabber, you need tension for it to be able to grab the goal piece, so make the top half of the grabber a long, loose stick like so. [20]
- attach the grabber and the triangle, the bottom vertexes (corner) and the top vertexes. [21]
- Attach a triangle from the weight to the middle joint of the triangle mentioned in step 2.
- Add another triangle, this time make it underneath the weight, making the weight fall of the ledge. After that add or move around anything you want to make your contraption suit the situation, then tweak to win! [22] Notice how I rotated the weight, so it would have more downward force on the triangle
One last thing, here is an alternative gripper, it is sure to hold on; so much so that you may actually have trouble getting it OUT of the grabber. [23]
[edit] Troubleshooting
- My contraption grabs the goal piece, but when it pulls back it slips out.
- Make your grabber a little tighter, or add some weight to the end of the loose stick on the top half of the grabber. (that is assuming you made the grabber like i did, see step 3 .
- It wont pull back, it just flings the whole contraption off the cliff!
- Either make a brace against the nearest static wall, or adjust the middle vertex of the triangle from step 2 a little higher. there are a couple more ways to fix this, but i cant think of them right now.
If you encounter any problems, add your problem and the most sensible solution in this section.
[edit] Examples
By Entity
By Asks
By ~Jon~
If you have any designs/practice levels, please add them here.
[edit] Bridges
This section deals with bridge based retrievers. Of course, there are certain occasions when you cant use this, but thats why I'm trying to make variety in my types of design guides.
[edit] Parallelextenders
This bridge is VERY stable if made correctly. Its range isn't too far though.
- Add weight, this takes a large amount, use about 25 sticks or more.
- Build a slanted rectangle, make absolutely sure the left and right sides are of equal length or your bridge wont unfold correctly! The longer you make the rectangle, the farther the bridge will extend and the more weight you will need to use. [29] More of a slant is probably better.
- Make an "X" with the top and bottom ends connected. this is your arm, so one of the ends has to be a wood rod, depending on which way the bridge will unfold. [30]
- Build a basic brace/frame structure for the bridge, there is an example above the contraption.[31]
- Here is where it gets complicated, so pay attention. Attach a triangle to the bottom half of the "slanted rectangle" bridge. After that, attach the side of the "Arm" which you built in step 3 from the corner opposite of the wood rod to the triangle you just previously made. [32] If it doesn't unfold and brace itself against the ground, something is wrong. Change the proportions of the "Arm from step 3" until it works. If this step goes without problems, you should be good to go for the rest of the contraption.
- Make a simple brown bridge attachment as shown: [33] (Note: See how it slows down briefly then speeds up while its unfolding in the example? That is a result of Step 2 not being done correctly, if i had gotten either side of the rectangle longer than the other any more than it was, it would have been completely ruined.)
- similar to step 6, add a second simple bridge attachment as shown. Example is in the bottom left corner. [34] This acts as a ramp, the faster you get the goal piece moving across this, the more chance you have of clearing the gap between the bridge and the build area.
- Alright! if you made it this far, your doing good! All you need to do now is add a little hook on the end of the bridge to get the goal piece moving. The faster your bridge unfolds, the better this will work.
Also, making your bridge at more of a downward slope helps, obviously. This is the perfect example. [35]
[edit] Troubleshooting
If you encounter any problems, add your problem and the most sensible solution in this section.
[edit] Examples
By ~Jon~
By {???}
By IGLima
If you have any designs/practice levels, please add them here.
[edit] Foro Bridges
Credit to Foro for the concept. This is just an alternative to the bridge guide in E-2, it all depends on the style of building you like.
Tutorial Video: http://www.youtube.com/watch?v=G35f26aI05g By IGLima
- Add weight, I probably don't need to mention this anymore as it is so obvious, but anyway..
- Add a frame (shape of the frame doesn't really matter.) Then brace it against the nearest static object(s). If there is no static object, Make a second weight opposite of where the bridge will go, this will act as a counterweight. [40]
- Add an "unfolding" triangle to the bottom of your frame, then attach a chain from your weight to the end of the unfolding mechanism. [41] Its easier to understand if you watch it.
- Add a basic triangle-pivot arm to the unfolding triangle, then attach a chain from the top vertex to your frame mentioned in step 2. [42] Again, watching how it unfolds is the best way to learn how to do it.
- Add another unfolding triangle to the bottom vertex of the pivot arm from step 4. [43]Note: I added another little triangle against the ground to the first unfolding triangle so it doesn't fall over, this makes things unfold a bit more smoothly. I Also made a little slanted stick to push down the unfolding triangle on the arm so it doesn't do this [44]
[edit] Troubleshooting
- My arm broke!?
- Go see a doctor. But really, Sometimes that Joint Order will cause the joints to stretch and break if you have a lot of weight on the arm, just delete and re-attach some parts and it should work just fine. Also having more leverage will reduce strain on the joints.
- The ball stops rolling in the middle of the bridge.
- Normally you shouldn't have this problem but.. When your bridge is at more of a vertical angle it will roll faster and should solve that problem, to do this you should move the support frame from where the chain connects to the arm downward.
If you encounter any problems, add your problem and the most sensible solution in this section.
[edit] Examples
By Foro
By IGLima
By Snaggltoot
If you have any designs/practice levels, please add them here.
[edit] Nurket Bridges
Credit to Nurket for the concept, and thanks {???} for showing it to me. This bridge has potential to reach very far, and is fairly quick to unfold.
- Add two weights, a water weight (approx. 20-30 sticks), then a wood weight (approx. 10-20 sticks).
- Build a frame structure, preferably a tall triangle on one side and a shorter triangle on the other. Make sure the bottom rod is a wood rod. (for the wood weight to rest on) [53]
- Build an elongated triangle arm in the way shown in the example. [54] This will act as most of your bridge.
- Attach a chain from the water weight to the elongated arm; after that attach an unfolding triangle from the middle joint of the triangle arm to the base of the support structure. [55] watch the design unfold a few times if you don't understand my explanation.
- Build another unfolding triangle to the end of the long triangle arm. [56] You may want to add a "hook" on the end of your weight to help the triangle unfold, like in the example.
- Last step, attach a wooden chain from the long triangle (from step 3) to the far-corner of your support structure. After that, all you need to do is add whatever odds and ends that help you get to the goal. [57]
[edit] Troubleshooting
- The support structure is phasi...
- Yes i know, it phases sometimes- all you need to do is double over those joints; delete some of the weight if possible.
- The unfolding arm from step 5 won't fold the right way!
- That is why i added the hint that you need to add a small "hook" to your water weight.
if you encounter any problems, Post your problem and the most sensible solution in this section.
[edit] Examples
By Nurket
By ~Jon~
By BJSwimmer
- http://fantasticcontraption.com/?designId=8646367 This is a different version, its stronger and faster. Its also not too hard to understand, Try and understand it if you like.
By IGLima
By {???}
Practice Level By {???}
If you have any designs/practice levels, please add them here.
[edit] RoboBridge
Authored by RobotMafia. This is a very easy design to build, and its distance has great potential.
- Add a weight, about 20-30 sticks. Also, build a sturdy frame, and position you weight on the back of the build area. Something like this should suffice. [59]
- Attach a very strong triangle near the middle-left of your frame. Attach the top of the weight to the top vertex of this triangle, Preferably with a small chain. [60] Your frame will probably phase through the ground and off the screen at this point, but it won't once you have the rest of the bridge attached.
- Attach a medium-sized triangle to the bottom-right corner of your frame. Attach the bottom vertex of your triangle from Step 2 to the middle vertex of the new triangle. Now, extending pretty far up into the build area, attach two rods, one from the middle vertex of your new triangle, and one from the right-most vertex of your new triangle, and connect them, making a new, bigger triangle; This is the fulcrum. [61]
- Attach two rods, A short wood rod pointing upwards from the fulcrum, and a long wood rod pointing down. After that Support these two pieces from the bottom with a water-rod structure as shown. [62]
- Attach a wood rod chain from the corner of your frame- or wherever the goal area lies, to the tip of the wood rod on the left side of your fulcrum. Adjust the length of this longer for more distance, or tighter for more height. Distance; Height Do not make the chain too long, as the bridge will sag down too far and possibly break off.
- Attach two wood rods to the end of your bridge, Forming a backwards L. Then attach a water rod from the top of the "backwards L" to the end of your arm. [63]
And that's it! Just add whatever odds and ends you need to get the goal piece! This is the perfect example: RoboBridge
[edit] Troubleshooting
- My main triangle from Step 2 keeps breaking?!
- You may want to build the triangle before you build the frame, this will almost definitely prevent it from breaking. Connection order counts! Also, try lengthening your chain from Step 5. If this is too tight, it may not leave enough leeway for the bridge to unfold, and the extra stress will be put on this triangle.
if you encounter any problems, Post your problem and the most sensible solution in this section.
[edit] Examples
http://fantasticcontraption.com/?designId=10111381 by i need a user
If you have any designs/practice levels, please add them here.
[edit] Short-Distance Easy bridge
1. Add a heavy weight 30-40 sticks, and what would be a reenforced box but without the sides, with wood rods on the top on, and diagonally up/left or right (what ever direction you want the bridge to go) it will have already created a small bridge. [64]
2. Add a v shape and double it with short rods in the middle (I apologize if this is confusing, just go to the links) [65]
3. Add a 2 rod rope in between the lowest point on the left, and the highest point on the left [66]
4. Tweak by changing the length of the rope and moving the lower right point away or towards the middle of the screen [67]
[edit] Troubleshooting
- My Bridge won't unfold all the way.
- Make the rope longer.
- My bridge collapses after it completely unfolds.
- Move the lowest right point towards the center of shorten the rope.
- My bridge is more vertical than horizontal.
- Make the rope longer or move the bottom right point to the left.
[edit] Examples
By halfmaster1
