I realized just after uploading this that I forgot to mention that Crashfest was not my second opponent. Shrapnel Mine was supposed to follow its fight against Caldera by facing the other horizontal midcutter, Red Mamba. Unfortunately, Red Mamba forfeit having suffered irreparable weapon damage in its first and only fight against Left Unsupervised. Then I went on to fight Crashfest with Shrapnel Mine for its "third" fight. So Shrapnel Mine was technically 1-2 this event.
11:00 there's a problem with your editing. You have two audio tracks of dialogue over top of each other making the whole thing gibberish. Great video otherwise, I'm always happy to see event reports, especially from builders who don't play to the meta.
Whoops sorry about that, must have had the voice over audio on 'solo' when editing in that clip and forgot it has its own voice over 😔. Thanks for the feedback and encouragement!
That wide plate and the angle seems like it has difficult time getting under other wedges and forks. I wonder if some front forks could help get the initial scape under. If it's under weight why not use an awesome heavy steal for the plate, get more front weight to scrape under, and let the front plate take a bunch of impact.
I think if I could drive properly for more than 30 seconds in one of these fights it would have gotten under just fine. It already is a heavy steel plate.
@@JustCuzRobotics The issue I meant with the width is the wide bottom edge boundary. Any small bump in the floor on any part of the bottom edge is going raise almost the entire edge, and lots of the edge could get raised more than the bump height, leaving the far side hinging off the floor and the opposite side angled above the bump height. If say there was a small clearance on the bottom edge through the middle and the far side edges to only allow two smaller boundary segments to scrape the floor on bottom sides that might greatly mitigate this issue. You just need one tiny bit of edge to scrape under an opponents edge to win the wedging contest. Bottom edge shaped something like this: ---v----------v--- or ---u---------u---
It will probably not be for quite a while unfortunately. Gotta focus on Battlebots until November, the only other video I have planned so far before Battlebots filming is Division's recap from this event.
I really wish you would report the overall results at the end of the video, rather than the start. I'm excited to see how your robots do but I like to watch every fight not knowing how it goes.
@@JustCuzRobotics Also, including that the event is double elim and there being only 2 fights spoils the result. If possible, a whiteboard fight or rumble in every video would prevent inherent spoilers in the chapters!
Shrapnel Mine is decently good and has some potential, but needs some improvements after that event. Good Luck for both Bloodsport and Retrograde in BATTLEBOTS CHAMPIONSHIP VII this October.
I looks as though your over correcting alot when driving and putting yourself in a bad spot. Maybe a little less gain to slow the controls down a bit. These things move so fast its crazy.
Division got Most Destructive Bot award? Lol, must have decapitated a lot of bots. Can't wait to see that part. Also I think Shrapnel Mine depends a lot on its ability to pin a bot to a wall, which can be very difficult to do sometimes.
Possible improvements for Shrapnel Mine: - Make it shorter and wider, so it’s easier to keep pointed at opponents - Make the forks/wedge double-hinged, so a) they can always perform as getting-under devices, and b) the part of each fork that does the sawing action can be better suited to that particular action -Make the saw be set further into its swing than all the way back, so the hit-the-bottom action can be done faster - Paint Fully Defined blue and call it Shrapnel Mine :trol:
Ah good question. I did my safety test with them on but the floor is not plywood it's MDF which is basically glued together sawdust. The cleats turned it into no longer glued together sawdust with hardly any forward thrust provided so I had to remove them
Once again, Shrapnel Mine reminds me of the story of the mice and the weasels. Go a bit extreme with the complexity, and a much simpler strategy can be unexpectedly dominant over it.
“We choose to go to the Moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too." - JFK
What ended up happening with casting wheels? I know you did a whole video a while back, and I actually took a ton from it and started making my own for my next iteration.
These were cast tires, I explained in the video that my wheel hubs were simply designed wrong for this exact version and the softer urethane. It should be an easy fix to make a hub that grips the tires better. I have cast wheels for almost 2 years now and this is the first time I have lost tires in a fight like that.
Shrapnel Mine seemed to have some trouble with self-righting. Was that as a consequence of loss of tires, or does that bear more improvement to the design? Good luck sprucing it up for another event!
![Billet Metal Chassis - Good for 3lb Combat Robots? [Subtraction V2, March NHRL Event Recap]](http://i.ytimg.com/vi/_YVKZTy4j9U/mqdefault.jpg)
I realized just after uploading this that I forgot to mention that Crashfest was not my second opponent. Shrapnel Mine was supposed to follow its fight against Caldera by facing the other horizontal midcutter, Red Mamba. Unfortunately, Red Mamba forfeit having suffered irreparable weapon damage in its first and only fight against Left Unsupervised. Then I went on to fight Crashfest with Shrapnel Mine for its "third" fight. So Shrapnel Mine was technically 1-2 this event.
🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣
10:56 ahhhh the voices
11:00 there's a problem with your editing. You have two audio tracks of dialogue over top of each other making the whole thing gibberish. Great video otherwise, I'm always happy to see event reports, especially from builders who don't play to the meta.
Whoops sorry about that, must have had the voice over audio on 'solo' when editing in that clip and forgot it has its own voice over 😔. Thanks for the feedback and encouragement!
That wide plate and the angle seems like it has difficult time getting under other wedges and forks. I wonder if some front forks could help get the initial scape under. If it's under weight why not use an awesome heavy steal for the plate, get more front weight to scrape under, and let the front plate take a bunch of impact.
I think if I could drive properly for more than 30 seconds in one of these fights it would have gotten under just fine. It already is a heavy steel plate.
@@JustCuzRobotics The issue I meant with the width is the wide bottom edge boundary. Any small bump in the floor on any part of the bottom edge is going raise almost the entire edge, and lots of the edge could get raised more than the bump height, leaving the far side hinging off the floor and the opposite side angled above the bump height. If say there was a small clearance on the bottom edge through the middle and the far side edges to only allow two smaller boundary segments to scrape the floor on bottom sides that might greatly mitigate this issue. You just need one tiny bit of edge to scrape under an opponents edge to win the wedging contest. Bottom edge shaped something like this:
---v----------v--- or ---u---------u---
the intro song is "bust it out" by fwlr
Keen to see an update to the cast wheels - I'm about to have a go at some myself.
It will probably not be for quite a while unfortunately. Gotta focus on Battlebots until November, the only other video I have planned so far before Battlebots filming is Division's recap from this event.
I really wish you would report the overall results at the end of the video, rather than the start. I'm excited to see how your robots do but I like to watch every fight not knowing how it goes.
Noted! Thought I would try switching it up this time but I can understand how that may annoy some folks.
@@JustCuzRobotics
Also, including that the event is double elim and there being only 2 fights spoils the result. If possible, a whiteboard fight or rumble in every video would prevent inherent spoilers in the chapters!
@@JustCuzRobotics Thank you! I appreciate it.
Shrapnel Mine is decently good and has some potential, but needs some improvements after that event.
Good Luck for both Bloodsport and Retrograde in BATTLEBOTS CHAMPIONSHIP VII this October.
Thanks! Unfortunately Retrograde will not be in this season but Bloodsport certainly will be
I looks as though your over correcting alot when driving and putting yourself in a bad spot. Maybe a little less gain to slow the controls down a bit. These things move so fast its crazy.
Division got Most Destructive Bot award? Lol, must have decapitated a lot of bots. Can't wait to see that part. Also I think Shrapnel Mine depends a lot on its ability to pin a bot to a wall, which can be very difficult to do sometimes.
It's difficult to execute a pin when missing wheels and tires, indeed. We shall see if I can fix that problem what it does then
I liked that intro
Thanks! Probably spent about as long on the first minute as the rest of the video combined...
Possible improvements for Shrapnel Mine:
- Make it shorter and wider, so it’s easier to keep pointed at opponents
- Make the forks/wedge double-hinged, so a) they can always perform as getting-under devices, and b) the part of each fork that does the sawing action can be better suited to that particular action
-Make the saw be set further into its swing than all the way back, so the hit-the-bottom action can be done faster
- Paint Fully Defined blue and call it Shrapnel Mine :trol:
I figure if I keep giving ideas for Shrapnel Mine improvements, one of them will be good 😂
Awesome vid. This make me really want to pursue some combat robotics! :)
Great! You should!
IT'S SO LOUD!!!!
any thought on using the extra weight to put armor around the wheels?
It's definitely a possibility, but I think it's possible to make much stronger drive modules and wheels as well.
Did you beat that one robot 0:10 by slamming it into the roof? Nice.
You'll have to wait for the Division recap to see!
Just asking but why not use some tpu wheel guards? Maybe it could take a few hits from spinners.
That would make self righting impossible with the tires still attached
@@JustCuzRobotics how about curved ones? Like a half dome from the topside?
I'll consider a few options but it's unlikely to work well with wheelguards
@@JustCuzRobotics sure! Looking forward to what new innovative stuff you bring forth! As always looking forward to it!
What happened to the cleats on the wheels?
Ah good question. I did my safety test with them on but the floor is not plywood it's MDF which is basically glued together sawdust. The cleats turned it into no longer glued together sawdust with hardly any forward thrust provided so I had to remove them
Once again, Shrapnel Mine reminds me of the story of the mice and the weasels. Go a bit extreme with the complexity, and a much simpler strategy can be unexpectedly dominant over it.
“We choose to go to the Moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too." - JFK
What ended up happening with casting wheels? I know you did a whole video a while back, and I actually took a ton from it and started making my own for my next iteration.
These were cast tires, I explained in the video that my wheel hubs were simply designed wrong for this exact version and the softer urethane. It should be an easy fix to make a hub that grips the tires better. I have cast wheels for almost 2 years now and this is the first time I have lost tires in a fight like that.
Shrapnel Mine seemed to have some trouble with self-righting. Was that as a consequence of loss of tires, or does that bear more improvement to the design? Good luck sprucing it up for another event!
Yeah it's because there were no tires. When it's upside down and the arm goes back it can sorta thwack it itself upright again if I still can drive.
That title gives me a bad feeling…
I like Shrapnel Mine and hope it gets a good one shot on a bot. At 3 lb it likely can.
Crash Fest!!!
You may be seeing a lot more of Crash Fest next time...
6th comment
:)
Don't feel too bad. I had my whole wheel fall off midway through a fight at my last competition. It just decided to roll right off...
I had a recent competition too… we had R/C car tires along with their motors and mounts, and those got absolutely dispatched.
@@BigFatWedge currently coming up with a new drive setup that's more durable.