Binari - Revision history

Bnaing3 at 08:45, 28 December 2022

2022-12-28T08:45:55Z

Bnaing3: /* Weapon Design */

2022-09-28T04:58:56Z

‎Weapon Design

Bnaing3: /* Weapon System */

2022-09-28T04:58:33Z

‎Weapon System

Jpeavy30: /* Weapon Design */

2022-07-22T05:21:43Z

‎Weapon Design

Gbroady3 at 19:07, 2 June 2022

2022-06-02T19:07:36Z

Gbroady3 at 18:57, 2 June 2022

2022-06-02T18:57:17Z

Gbroady3 at 18:56, 2 June 2022

2022-06-02T18:56:43Z

Pmatesevac3: /* Issues */

2022-06-02T17:57:26Z

‎Issues

Gbroady3: /* Issues */

2022-06-02T17:38:02Z

‎Issues

Gbroady3: /* Issues */

2022-06-02T17:32:14Z

‎Issues

@@ Line 158: / Line 158: @@
 * To expand on this, designs with modularity have a lot of merit. If the shuffle shaft/plates get damaged for example, being able to replace the whole shuffle module will be very helpful.
 * Avoid locking things that need servicing into the bot. You don't want to have to remove multiple plates to access 1 thing.
+==== Related Files ====
 [[Category: BattleBots]]
 [[Category: FeatherWeights]]
 [[Category: BigBots]]

@@ Line 56: / Line 56: @@
 *Look for better protection for belts/weapon stacks (testing materials/more research)
 *AR500 is sorta hard to machine (we need to basically increase the waterjet thickness, machinability, and possibly do 2 passes)
-*Weapon shafts displayed no significant bending or deformation after competition on inspection. Shafts were 3/4" Diameter 1144 Carbon Steel shafts with a yield strength of 100,000psi. May be used as a reference for future calculations. McMaster link here: https://www.mcmaster.com/6101N55/
+*A positive was that the weapon shafts displayed no significant bending or deformation after competition on inspection. Shafts were 3/4" Diameter 1144 Carbon Steel shafts with a yield strength of 100,000psi. May be used as a reference for future calculations. McMaster link here: https://www.mcmaster.com/6101N55/
 ===Weapon Stack and Weapon Pictures===

@@ Line 56: / Line 56: @@
 *Look for better protection for belts/weapon stacks (testing materials/more research)
 *AR500 is sorta hard to machine (we need to basically increase the waterjet thickness, machinability, and possibly do 2 passes)
+*Weapon shafts displayed no significant bending or deformation after competition on inspection. Shafts were 3/4" Diameter 1144 Carbon Steel shafts with a yield strength of 100,000psi. May be used as a reference for future calculations. McMaster link here: https://www.mcmaster.com/6101N55/
 ===Weapon Stack and Weapon Pictures===

@@ Line 52: / Line 52: @@
 *Do not use our classical belts, use industrial/automotive belts instead
 **Opinionated Note: Perhaps putting the belts directly onto the motor is not best practice... utilizing the shaft to attach a small pulley would allow for both timing belt usage and advantageous gear ratios. At the very least, do not place belts directly on grooved motor housings-make sure the can is smooth.
 *Look for better protection for belts/weapon stacks (testing materials/more research)
 *AR500 is sorta hard to machine (we need to basically increase the waterjet thickness, machinability, and possibly do 2 passes)

@@ Line 117: / Line 117: @@
 *Results: 0-2
 **Bracket Style: Double Elimination
-***[Binari (loser) V.S. Crippling Depression (winner): YouTube Link]
+***[Binari (loser) V.S. Crippling Depression (winner): https://youtu.be/npJXu5YIfbU]
 **** Crippling Depression was a wedge and undercutter combination bot.
 **** As an undercutter, the weapon went underneath ours, slightly sheared one of our bolts
 **** After getting flipped, they absolutely destroyed the weapon guards and side armor and bent our shuffler system and front plate
 **** Lost via tap-out
-***[Binari (loser)  V.S. HUHMWPE DUHMWPE (winner): YouTube Link]
+***[Binari (loser)  V.S. HUHMWPE DUHMWPE (winner): https://youtu.be/zIZz2qR4AVM]
 **** Ripped off sideplate, and the shuffler system slowly fell apart
 **** Lost via tap-out

@@ Line 141: / Line 141: @@
 * 1/4" 6061 Aluminum did not end up being as resilient as previously thought. Once the HDPE blocks were ripped off, the side plates soon followed nd large deformations were observed after fights. So make sure your properly defend your bot.
 [[File:Binari_Bent.jpg|400px]]
-[[File:Binari_Destoryed.jpg|400px]]
+[[File:Binari_Destroyed.jpg|400px]]
 * Someone, preferably everyone needs to learn how ESCs work. We bought "reversible" ESCs for our drive since, in previous years, I've been on teams which have made the mistake of not getting reversible ones resulting in only 1 drive direction. But apparently "reversible" doesn't necessarily mean the ESC can drive both directions???????? Upon finding this out, (again late) we scrounged Hocki's ESCs but they were painfully slow and we would've needed to do some Arduino garbage to try and fix that which no one was qualified to do. So we replaced those with red bricks chonkii had selected for their drive but turns out those weren't reversible either. Luckily everyone at AVC is way nicer than they need to be and several people brought ESCs for us day 2 and someone sat there and programmed them for us. These situations need to be avoided.

@@ Line 142: / Line 142: @@
 [[File:Binari_Bent.jpg|400px]]
-* Someone, preferably everyone needs to learn how ESCs work. We bought "reversible" ESCs for our drive since in previous years I've been on teas which have made the mistake of not getting reversible ones resulting in only 1 drive direction. But apparently "reversible" doesn't necessarily mean the ESC can drive both directions???????? Upon finding this out, (again late) we scrounged Hocki's ESCs but they were painfully slow and we would've needed to do some Arduino garbage to try and fix that which no one was qualified to do. So we replaced those with red bricks chonkii had selected for their drive but turns out those weren't reversible either. Luckily everyone at AVC is way nicer than they need to be and several people brought ESCs for us day 2 and someone sat there and programmed them for us. These situations need to be avoided.
+* Someone, preferably everyone needs to learn how ESCs work. We bought "reversible" ESCs for our drive since, in previous years, I've been on teams which have made the mistake of not getting reversible ones resulting in only 1 drive direction. But apparently "reversible" doesn't necessarily mean the ESC can drive both directions???????? Upon finding this out, (again late) we scrounged Hocki's ESCs but they were painfully slow and we would've needed to do some Arduino garbage to try and fix that which no one was qualified to do. So we replaced those with red bricks chonkii had selected for their drive but turns out those weren't reversible either. Luckily everyone at AVC is way nicer than they need to be and several people brought ESCs for us day 2 and someone sat there and programmed them for us. These situations need to be avoided.
 ==== Changes to make ====

@@ Line 131: / Line 131: @@
 * One of the largest problems we encountered this year was the ridiculous amount of taper from the waterjet. Even with designing for added tolerance, plates did not fit together and holes were too small resulting in a lot of time spent re-machining. This probably isn't going away any time soon since it is doubtful the SCC will shell out the money for a new one so it is good to be aware of this and even to perform test cuts to evaluate how your part might end up.
 * We added pulley guards to our bot with the intention of, well, guarding the pulley. These were 3-D printed in the AE makerspace on a markforged printed out of the carbon fiber reinforced nylon material onyx. This was not the super material we were led to believe it was. Frankly, it sucked. The prints we ended up using experienced bed adhesion issues during print but due to time constraints (late redesign, long time to get someone to print it in AE space) we had to go with them. The infill resembled stacks of pellets. This may or may not be a result of the bed adhesion issues but it was shredded immediately. These ended up being more trouble then they were worth so alternative methods of keeping pulleys safe should be considered.
 * Independent of the pulley guards getting shredded, the belts were shredded as well. As it turns out, the polyurethane belts do not hold up, especially when placed directly on a ridged scorpion motor can. Consider using high strength belts such as those with cords inside.
 [[File:Binari_BadBelt.jpg|400px]]
 * Considerations for armor were not made initially resulting in large HDPE blacks being bolted to the side last minute. When these blocks took a direct hit to the front the shifted an entire side of the bot, bending the front plate and one of the drive shafts and knocking bearings out of place. I can't stress this enough; have a plan for your armor.
 * 1/4" 6061 Aluminum did not end up being as resilient as previously thought. Once the HDPE blocks were ripped off, the side plates soon followed nd large deformations were observed after fights. So make sure your properly defend your bot.
 * Someone, preferably everyone needs to learn how ESCs work. We bought "reversible" ESCs for our drive since in previous years I've been on teas which have made the mistake of not getting reversible ones resulting in only 1 drive direction. But apparently "reversible" doesn't necessarily mean the ESC can drive both directions???????? Upon finding this out, (again late) we scrounged Hocki's ESCs but they were painfully slow and we would've needed to do some Arduino garbage to try and fix that which no one was qualified to do. So we replaced those with red bricks chonkii had selected for their drive but turns out those weren't reversible either. Luckily everyone at AVC is way nicer than they need to be and several people brought ESCs for us day 2 and someone sat there and programmed them for us. These situations need to be avoided.