One small thing - I wouldn’t personally put magnets ahead of the front driving wheels, in case you get bogged down on them when something goes up your wedge. Otherwise, very fun, very cool, looking forward to seeing it in an arena.
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The Progression on your design from your first build is mind blowing!
Keep the updates coming.
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The Build:
We’re back, because I’m impatient… and it’s been a while! Some minor tweaks and touch ups were made to the CAD since the last post, including moving the magnets behind the driving wheels. The 2025 events calendar has shifted around too, but my planned June completion date, initially for Rapture, is still on schedule, as I’m now signed up for Battle in the Burgh.
The first major update would be the hardox parts. I got these back in February. Yes, I did go with hardox, and @morgan_ls’s tipoff is legit: Crossblow V will have 2mm hardox wedges in both it’s regular, and anti horizontal forms.
Quite the armoury.
Shout out Stewart Agricultural for a very precise end product and being super easy to work with. You can also see my experiments with pain pens for the new-look Crossblow face - the robot has gotta have some personality, though this will be a little obscured by the TPU wedgelets.
The next major update is to the internals. I have fully committed to a switch, now, and shelled out for the Repeat Max V2s and BBB ESCs as well, since the Mars range is currently out of stock. I plan to shaft swap one of the motors, though. Barber Surgeon has a V1 Repeat Max that will need a longer shaft for the new design, while Crossblow will need both motor shafts shortened.
Since then, I have been into the hacklab to cut some parts from old offcut material I have lying around, but the bulk of the frame was done on @Hoppin’s CNC, looking mighty fine indeed. The holes to screw in the wedge have always been a bane of previous Crossblows, so this time I made a point of doing them properly, on a drill press, and using some printed guides to get the holes in exactly the right spot.
Current Progress.
All looking good so far - next will be finishing the lifter linkage and fitting the prints from @ForkliftCertified. I’m currently racing @Caleb to see who can finish their Crossblow first - no, I will not provide context. Look out for wheel moulding, soldering, and passing POM in the next update!
They love a nicely machined ass - courtesy of @hoppin. New die-cut stickers from PrettyGoodStickers.
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super excited to see this at burgh. will be very fun!