Data Breach Beetleweight Build

Mini update. While waiting for the new Hardox forks to arrive I figured I’d get a nice beauty shot of Data Breach and with the lifter setup fully assembled, I gave DB a weigh-in with the long forks which would be the heaviest forks the lifter could use. Just under 1.4kg so plenty of weight left for anti-hammer-saw/ axe top armour.


The beauty shot. This time around the lifter gets to be the starring weapon. Depending on how the next two events go I might drop the axe module in favour of an alt lifter setup.

Next two events? Yes!

Thanks to Wither a.k.a. Luca and his Dad being awesome with offering to help get me to more events, Data Breach MK3 will be competing at Mini Beasts In The East 2 this month and the BBB Beetle Champs 2024 in October.

3 Likes

The axe module has been wired up and ready for testing. After a chat in Discord, I will test the herringbone gears and a slightly tweaked version of the old gears to decide best which will improve the durability of the axe mech.

The last few bits of TPU parts steadily coming off the printer. The first one is the top amour for the lifter.

Next was some anti-horizontal spinner wedges for the lifter should I need the lifter.

For situations where I need to give spinners a tougher meal the old Hardox wedge from CSB: Echo will get put to use. Today the paint was stripped off and the top lip was modified to have an angled form.

I have also reinstalled the servo extender for the lifter. I opted to use the maximum range the arm can have to improve self-righting as I was a little fearful the bot may struggle in battle.

The wood board is out must be testing time. DB’s revised axe mech works lovely even if the new Repeat Max V2 outputs slightly less RPM. To my surprise, the axe can happily self-right in one action this time. No somersaults or a forward and backward motion this time. I only tested with the old gears installed as I was pleased with the results. As I said in my last post I reinstalled the servo extender and the bot self-rights lovely. (All tests in one video)

After the tests, I found that the forks catch on the underside of the wedges when the axe self-rights as it pushes the forks more than expected. I added crude chamfers to the wedge’s midsection, and now the forks slide back into the slots.

The last bits before MITE 2 next week. The first is a beauty shot with the ram setup.

Second, the new forks have arrived. Thanks to Thomas Weatherley for organising the group order. Two new spare lifter forks, four short forks for the lifter setup to swap to (turning the 1.39kg to 1.366kg) and 4 “anti-drum” forks

After 48 hours in a tub of vinegar, the forks were run through on a sanding wheel to get them all clean and ready for battle.

Of course the all-important sharp-edge protection.

MITE 2 event report time.

After Data Breach passed tech check I lent a hand with the arena and was awkwardly told while I was sitting in the arena who I was fighting knew this was going to be a tough run for the new upgrades to be tested in.

The first fight was with one of the MITE Crew’s bots (the actual name of the bot escapes me.) The fight was a bit of a blur for me (and the stream as it turned out😅) DB’s new wedges weren’t happy with the surface of the arena floor adding a tad more friction. I was also still trying to master DB’s speed and manoeuvrability, even set to 75% I had a job aiming at MITE Crew, we both tried to out-drive each other and get a lift in before one last knock in the corner causing the link to fall out of MITE Crew giving me the win. Granted a fight against an MITE Crew Bot was an automatic win no matter what, but I was still happy to have fought and earned the win.

https://www.youtube.com/live/VFQSNC0P7kY?si=2tAYMNd0Lt9rMxFV&t=4709

Wedges post-fight 1 only the tips are meant to be running on the ground. But clearly, the grip paint is rougher than expected.

After a battery swap and change to the axe module, I was ready for my next fight.

Next was Frenzy. Frenzy was going to be brutal. The tension was lightly broken after I had to help Frenzy get unstuck from the floor as we drove to our starting squares. It was a blur of roofing, hits flips, rams and a few axe blows. DB was tanking these hits like a champ until the link popped loose and the bot lost power. I tapped out because I was the only one who could see the power had gone.

https://www.youtube.com/live/VFQSNC0P7kY?si=8zGGi60_Af_D51jM&t=11543

A small design oversight as the link door doesn’t press down on the link enough to prevent the link from moving. The tires got chewed up but the TPU hubs stayed intact. The base plate took some nasty gashes and dents and will need replacing for the champs. The forks and axe head were trashed. Need some thicker and better-shaped forks for next time.

After removing the forks and swapping out the wheels, I changed to the ram bot set up with the 3mm hardox wedge ready for the 3rd round rumble. I also gave the pins in my link a little enlarging with a screwdriver to increase contact with the connector inside DB to hopefully avoid a link failing again.

The rumble was against Baby Dead Bod and Step Up 3D. I aimed to just charge at BDB till something broke and then deal with SU3D if it hadn’t taken too much damage. I was ramming and deflecting BDB when it wasn’t ripping poor SU3D apart. A chance it on the rear sent DB upside down which wasn’t ideal as the wedge lifted the front wheels off the ground making it really hard to drive. It became even harder after BDB sniped one of the back wheels (a newly swapped one at that) splitting the TPU laters apart. After BDB OOTA’d itself I tried to crab walk to the judges but a little jolt caused DB to bounce onto its dangling wheel and beached itself giving SU3D the win.

https://www.youtube.com/live/VFQSNC0P7kY?si=WM2si5D3J7x7qT-Q&t=13614

Post-fight. The damn wheel that cost me the fight

The wedge handled the hits great only tiny damage.

DB was out of the competition once again. After another wheel swap and the lifter setup reinstalled I took part in a none-spinner fight for a laugh.

https://www.youtube.com/live/VFQSNC0P7kY?si=TatCEvxWQ7J8CyNH&t=20928

While bad luck cost DB a shot at the top 8 I can walk away from the event with a smile. All of the faults of DB MK2 had been fixed with only a loose link being an issue this time. Drive and weapons worked great and the damage overall is minimal. A fresh set of tyres, a new base plate and a tweaked link arrangement should have DB at its best for the Champs in a few weeks.

1 Like

Prep work for the Champs begins.

Within 24 hours of being home, I had stripped down DB to assess the chassis and clean out the dirt. The TPU is fine and good to run. I swapped some of the m3 bolts for longer ones as the shorter bolts were losing their nyloc nuts. The base plate was removed so its replacement can be fitted on when it’s made.

The wedge got modded again to help the ram bot setup run better upside down.

It’s not perfect but it’ll function.

To help fix the link coming loose I’ve printed a replacement support for the link mount so the link door pushes down on the link.

The new spool of TPU and the 5mm HDPE arrived today. Going to cut at least one spare in case the base gets chewed up again.

Getting out the PLA template for the baseplate. After an hour two baseplates are cut and drilled

With the new base fitted the link mount had the wires flipped around so the link faces the other direction and then the link mount was bolted back into the bot with the taller support so the link will be pushed down by the link door.

The TPU link door is just too flexible to apply force down on the link. I replace it with a HDPE one.

I just ordered more rubber as I just ran out while casting new tyres, while also needing to print some replacement TPU wheel hubs because after an inspection it turned out Frenzy had compromised 2 wheel hubs. Losing 3 wheels from a total of 12 made, not bad.

It’s crunch time with one week to go till the champs.

The revised wedges off the printer, the differences are subtle but will hopefully improve their function. The underside was raised by 0.5mm to reduce surface contact with the floor, and a middle guide has been added to ensure the forks no longer get stuck under the wedges. The mounting holes for the forks were revised to give me better access to the nyloc nuts which I can now undo with the 3d printed jig I made for the axe earlier in the year.

To my surprise, the new wedges are 2g lighter.

A new alt lifter arm printed for getting better reach of big wheel bots should I run into any. I still need to remake my anti-huge setup. (the joys of not having a clue who is going to show up.) I also printed new mounts for the new 8mm hardox forks I’ve designed, time will tell if I get them before heading to Champs. And the last of the spare wheels have been cast and ready to run.

Updated beauty shot, the changes are so small visually compared to pre-MITE is quite strange to me. I’m not even sure enough changes have been made to regard this as MK 3.1

Time for another event report this time the BBB Beetle Champs.

Post Tech check all good to go, the heaviest setup put on for the Tech check was in fact the ideal setup for the 3-way Rumble. Saves me time.

Ready table for the 3-way rumble against Kairos and Got any grapes? With an overhead saw and a big shuffler vert, I needed the reach and extra protection to deal with them.

With the big threat from Got any Grapes? I focused on them ramming them into the wall twice which off-balanced them and caused them to send themselves into the corner near the pit. Which somehow broke one side of the drive. Kairos attempted an attack and ended up feeding their wedge into the vert bending it up badly. After a quick repositioning, I managed to lift Got any grapes? over and they couldn’t get purchase on the floor leading to them getting counted out, although that engagement led to two of my forks getting bent. Now it was a 1 v 1 with Kairos. With their wedge compromised I had the ground game advantage. I used it to push and lift Kairos about until one of the sticks on my transmitter worked itself loose and I had to pause to fix it giving Kairos time to change tacktic and use their saw like a vert. The damage was mostly cosmetic but I was struggling to get a good ram and lift in most of the time Data Breach is still a tad fiddly for me to drive. The fight went to the judges and DB got the win.

The post-fight damage, two bent forks. I’m going to be upgrading all my forks to 6 and 8mm cause I’m losing forks too much.

One of the wheels had a chunk of rubber removed that I was worried would get worse so I swapped to a new one and kept the damaged one as a spare.

The top plate and extra armour could have some small slices to the back from the vert mode attacks by the saw. Mostly cosmetic so I didn’t swap to the spare.

With the win, DB was in the round of 32. Finally, DB had made it past the round one stage of a event at last. I had to wait a little bit for the redemption rounds to be completed to know who I was fighting. When I knew it would be the winner of the fight between Lawnmower and Abracagrabra I watched on with worry. Either I was fighting a spinner or a control bot. When Abra won I was relieved to avoid a spinner but facing a control was still a scary prospect knowing I’m not that great of a driver.

At the ready table. With my long forks done for, I swapped to my shorter ones. I had considered using the axe but Abra’s top offered unrealistic catch points to hook onto with the axe so I kept the lifter on.

This was a driving battle with both bots trying to get under each other Data Breach managed a few lifts and rams while dealing with a mini bot and my bad driving. After lifting and shoving Abra into the corner next to the pit they self-righted right on top of their mini-bot and got stuck. I made one attempt to untick them but it failed so I went and opened the pit and shortly after Abra and the mini bot drove into the opening it. A second win and Data Breach was in the top 16.

Still struggling to process that achievement I had to prep for Gizmo. There was no damage to repair only a quick battery swap and DB was as ready as it was going to be. I had some 8mm forks on order but they didn’t arrive till yesterday sadly so I couldn’t justify using the axe.

At the ready table the longest wait to face one of my scariest fights. Gizmo being unsure how they’ll do against DB wasn’t much comfort.

On go the game plan was just to attack and try to get Gizmo off balance and cause them to bounce about on their weapon. I couldn’t believe on the first engagement DB got under Gizmo and rammed them into the wall tipping them over. This would lead to DB having the edge for the first minute with Gizmo getting tipped over either by me or themselves. I couldn’t capitalise on it much as Data Breach is at its most manoeuvrable even with the drive set to 50% speed, DB is hard to drive with it turned faster than I’m used to meaning I’m making lots of corrections to my positioning. Gizmo finally started to take advantage of that and got some good hits in. After some back and forth the pit lowers (after a false call 10 seconds earlier caused by Garath leaning on the button, apparently the fight was that exciting even for the arena marshal :rofl: ) I was trying my best not to be between Gizmo and the pit or oota wall. My game plan however was to have Gizmo bounce into one of them but sadly Gizmo was winning the engagements and threw me next to the pit and before I could self-right Gizmo knocked DB into the pit and that was it.

I was out of the comp having reached the top 16 which has been my main aim since first competing in the beetleweights in 2021. So I can walk away with my head held high. Data Breach was rather battered after that fight the wedges, forks, lifter arm, base and wheels got chewed up. I swapped to the spares and while there was no more time for a whiteboard Data Breach was back to a fighting state.

Data Breach post-event sporting all the spares I had prepped a quick battery charge and I could throw it back into the arena. I have some upgrades in mind for DB which I’ll go into in another post at some point. But for now, it’s a chance to unwind for the winter and return next year with Data Breach MK3.2

3 Likes

A day after I got home from Bristol, the new 8mm forks I had originally ordered for the axe module arrived. They weigh roughly 84g each, which is roughly the same as two of my 4mm anti-drum forks.

While they were intended for the axe module, I quickly whipped up new wedges that can hold the forks. Due to the combined weight being 1.45kg, I’ll design some lighter forks for when I need weight for extra top armour. What is a little hard to see in the CAD is I’m redesigning the chassis ready for the swap to Repeat Max V2s the reduced rpm should help tame DB in the hopes I can drive it better.

The lighter forks in the CAD, are basically the old 4mm forks with tweaks. Here you can see a concept for a 4WD mode. I will admit I’m not sure what situation will require losing 2 wheels seeing as the pulley and side panels are of equal weight to the wheels.

I printed the new wedges and mounted the new forks onto the current chassis.

For the new motor covers, I only had to make a small change to make them work with Repeat Maxs (using the one on the axe module to test fit.)

1 Like