nice. is it a local firm to yourself as it would be nice to who did it that's all
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nice. is it a local firm to yourself as it would be nice to who did it that's all
Nice work so far Giles, is all the aluminium there 2024 then? Should be tough as hell
also how much is it billed to weigh in at, as it was curious about 2024 and I found out it is 3 g/cm3 compared to 6082 2.7 g/cm3Quote:
Originally Posted by Andy
Firm doing the CNC is in Ireland, so not local, but he's a good guy.
@Andy, some of the internal mounts are 6082, the claw standoffs are 7075 and the frame is all 2024.
@Maxamus, Mantis 2 will be somewhere between 13.2 and 13.6 I imagine, CAD is saying just below 13kg right now, with small wiring bits missing. 2024 is 2.78g/cm3 and 6082 is 2.71g/cm3, so the difference is minimal.
hmm ok as the info i got from here says other wise. meh it is the internet it's fully of liesQuote:
Originally Posted by Giles
http://www.makeitfrom.com/compare/20...96082-Aluminum
I've always gone by the ASM database. I've not encountered that makeitfrom website before, although I like the comparison thing.
http://asm.matweb.com/search/Specifi...ssnum=ma2024t4
yeah it useful. might be worth using the higher estimation as it is easier to add weight then remove it
Sorry to sound dim witted (i manufacture robots on the coffee table), but is it a case of you drawing it all out in cad and then sending the files to a company who then mill it / cnc it etc? So in effect if I learnt cad I could stand half a hope in hell at producing something like that?
Most probably yea. I still have to make all the standoffs shafts and gears etc on my lathe and do lots of other parts, but the main frames can be easily cnc'd or water jet cut and assembled. My first robot (spinner wedge) was all just water jet profiles bolted together with m6 threaded bars, definitely coffee table levels of assembly.
A few more images of frame and drive pods
Attachment 6976Attachment 6977Attachment 6978Attachment 6979
This engineering is gorgeous. I love it!
I'm amazed I haven't seen this build thread before, that looks like one gorgeous control bot!
Cheers guys. I finished Mantis today. Here are some pics and a quick video:
Attachment 7104
Attachment 7105
https://youtu.be/MITqGWCIo9E
looks very impressive, the claw grabs very quickly, look forward to seeing some videos of it in combatQuote:
Originally Posted by Giles
nice control bot man! Looking forward to seeing it in action!
That looks beautiful, cracking workmanship! Can't wait to see it fighting.
That is absolutely stunning, I think it's a real contender for the upcoming championships.
It's really nice, very powerful in its grabber, impressed!
Let's see... 1 forum post... Cryptic email address and request for private links to my cad.... How about... No. If you had more forum activity and asked them to be posted in the thread I would have probably said yes.
Hey Giles,
3 quick questions,
1) when casting your wheels, did you use anything to stop the rubber sticking to the mold ?
2) What rubber did you use ?
3) is Mantis returning anytime soon ?
Hey,
1 - Yes, a thin coating of Vaseline applied to the mold with my finger tip, seemed good enough.
2 - MouldCraft Fast Cure Red, Shore 60A. I've also used PolyTek PT Flex60 before which is good.
3 - Mantis will be back for sure. I'm going to weld some better front armor for dealing with verts, along with upgrading a few parts. Can't make the feather champs this year though sadly!
Quote:
Originally Posted by Giles
Many thanks