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Connor
02-27-2009, 10:46 PM
Hey Guys, got my lynx motion biped scout in Thursday, this is my progess thus far.

http://forums.trossenrobotics.com/gallery/files/1/6/4/2/100_1060.jpg

http://forums.trossenrobotics.com/gallery/files/1/6/4/2/100_1062.jpg
http://forums.trossenrobotics.com/gallery/files/1/6/4/2/100_1056.jpg
http://forums.trossenrobotics.com/gallery/files/1/6/4/2/100_1058.jpg
http://forums.trossenrobotics.com/gallery/files/1/6/4/2/100_1059.jpg
http://forums.trossenrobotics.com/gallery/files/1/6/4/2/100_1062.jpg

Firestorm65
02-28-2009, 07:23 AM
Cool. I'm about to build a robot based on the scout, so it's always interesting to see what other people have done with it. Which servos are you using?

mannyr7
02-28-2009, 11:16 AM
Cool project, man! Using 7.2v for power? What servos are those?

Connor
02-28-2009, 03:45 PM
Servo's are Hitec HSR-5995TG's - Discontinued (Rated up to 7.4v).. Replacement is HSR-5990TG.. Much better servo.. But, these I got cheap enough to make building this mech possible.

Thanks, Connor

A_Clawson
03-06-2009, 07:48 PM
Any plans for additional sensors, or just RC (autonomous?) and a camera?

Connor
03-06-2009, 09:05 PM
Any plans for additional sensors, or just RC (autonomous?) and a camera?

Will add laser pointers and my guns. I'll be using MechDAR (developed by lnxfergy) which consists of 5 IR sensors. (1 on the front will pan), camera.. and the targets. I'm still working on making him walk at the moment.

Zacattack
03-14-2009, 02:53 PM
wow cool, im pretty set on making a quadropod, but after seeing this its very tempting to use the scout biped

MSK Mech Commander
04-05-2009, 01:05 PM
Will add laser pointers and my guns. I'll be using MechDAR (developed by lnxfergy) which consists of 5 IR sensors. (1 on the front will pan), camera.. and the targets. I'm still working on making him walk at the moment.

Laser pointers huh? Sounds like a nice idea, but how are you planning to align the guns and pointers?

Adrenalynn
04-05-2009, 04:40 PM
I'd imagine the same way you align any scope or lasersight, right?

Bench-mount it, fire a few shots from a fixed position at a target, align it, then rinse, lather, repeat up to the MOA limits/precision of the scope system or weapons system.

gdubb2
04-05-2009, 04:48 PM
I made a rudimentary bore sight from 2 dowels and an index card. A dowell in each bore card on the far end then center the laser. That got in the ballpark, then it was shoot and adjust. Seems the guns shoot higher than I though.

Gary

Adrenalynn
04-05-2009, 04:56 PM
Yeah, bore sighting will get you in the right 'hood, surely. But nothing replaces shoot-and-tweak. With enough rounds through the barrel you should be able to derive a basic MOA adjustment for the system. Once you have that, you know where it will shoot at 1ft, 10ft, out to the limits of the ammo and barrel.

Connor
06-03-2009, 11:09 AM
Okay, It's been a while since last update. Here is a nice picture of shadow scout without his targe plates. (I'm still working on those and hope to have them done in the next day or so) He is pretty much done, I need to tweak his walking gait and protect the camera with some lexan, but that's about it beside the target plates.

ScuD
06-03-2009, 11:16 AM
Man that thing looks awesome :D

I can't wait to see the reports of the first Mech battles!

DresnerRobotics
06-03-2009, 11:36 AM
Okay, It's been a while since last update. Here is a nice picture of shadow scout without his targe plates. (I'm still working on those and hope to have them done in the next day or so) He is pretty much done, I need to tweak his walking gait and protect the camera with some lexan, but that's about it beside the target plates.

Great work! Pretty feet too :P

jes1510
06-03-2009, 11:48 AM
Nice!

Connor
06-03-2009, 11:50 AM
Great work! Pretty feet too :P

Yup.. really nice feet... They turned out well.. :)

CogswellCogs
06-03-2009, 12:07 PM
Great looking Mech, Connor ! What guns are you using, there ?

Adrenalynn
06-03-2009, 12:16 PM
That's the most mech-looking-biped-mech I've seen! Nice job!

Connor
06-03-2009, 12:21 PM
Great looking Mech, Connor ! What guns are you using, there ?

Those would be the Defender from Walmart.. Modded very heavily.. The front part of the gun right before the barrel starts is actually a gearbox cover from a roomba brush motor. I've got lots of them around..

Thanks, Connor

Connor
06-03-2009, 12:22 PM
That's the most mech-looking-biped-mech I've seen! Nice job!

Thanks, That's what I was going for..

mannyr7
06-04-2009, 09:17 AM
Looks killer! Ghost Bear, huh? I was planning on representing Eridani Light Horse.

Connor
06-04-2009, 09:30 AM
Looks killer! Ghost Bear, huh? I was planning on representing Eridani Light Horse.

Yea, I pointed the wife to a wiki with all the clans on it and that's the one she liked.. so.. that's who we are. :)

robokoi
06-04-2009, 08:50 PM
very nice design! what are you doing for walking stability? that looks pretty top heavy.

Grand Robot Master
06-06-2009, 11:08 AM
nice bot! looks like the scout makes a good platform for mech making!

SystemDefect
10-06-2009, 07:21 AM
Very Nicely done, I also plan on using a similar reverse knee design.

sam
10-06-2009, 07:51 AM
Looks really nice Connor!

With all that load, is the Mech able to walk well?

Sam

P.S. I hope you are preparing a vid to show it in action! :D

Connor
10-06-2009, 12:30 PM
Looks really nice Connor!

With all that load, is the Mech able to walk well?

Sam

P.S. I hope you are preparing a vid to show it in action! :D

I had the bot walking without the guns, but not 100% stable. After adding the guns, it wouldn't take more than 1-2 steps before falling over. My advise, don't bother with the Reverse Knee design unless you get into the high end dynamixel servos. 5990's have enough power to do a Reverse Knee, but, when you add all the extra weight, they don't perform very well.. I think I'm going to remove the scout bottom torso, re-work him into a standard huminoid.

Thanks, Connor

Adrenalynn
10-07-2009, 01:49 PM
[MOD NOTE: Discussion of mechanics of reverse knee design moved here: http://forums.trossenrobotics.com/showthread.php?t=3617 per OP's request. This is the point the split took place.]

innerbreed
02-16-2010, 03:45 PM
hi Conner,

the project is looking good. it looks big with the top section on.
its a shame you have run into the same problem i did. anyway here are a few design solutions you might be interested in just in case you do redesign yours.

they are all different and range from 4-5 & 6 DOF
might have to look closely at some of them.

http://i531.photobucket.com/albums/dd355/innerbreed/scoutfoot.jpg
http://i531.photobucket.com/albums/dd355/innerbreed/scoutfoot3-1.jpg
http://i531.photobucket.com/albums/dd355/innerbreed/new1.jpg
http://i531.photobucket.com/albums/dd355/innerbreed/scout5dof.jpg
http://i531.photobucket.com/albums/dd355/innerbreed/scout4dof.jpg

http://i531.photobucket.com/albums/dd355/innerbreed/100_1970.jpg
http://i531.photobucket.com/albums/dd355/innerbreed/100_2024.jpg
http://i531.photobucket.com/albums/dd355/innerbreed/100_2029.jpg

i dont mean to spam up your thread but im only trying to help you get some ideas.
the reason for putting the sway servos in cased with in the body was to allow for more side motion plus its less added weight in the flighted leg from the hip.

4mem8
02-16-2010, 07:27 PM
Inerbreed as far as i am concerned you can post as much as like, we all benefit from your posts.

Connor
02-17-2010, 01:25 PM
hi Conner,

the project is looking good. it looks big with the top section on.
its a shame you have run into the same problem i did. anyway here are a few design solutions you might be interested in just in case you do redesign yours.

they are all different and range from 4-5 & 6 DOF
might have to look closely at some of them.







http://i531.photobucket.com/albums/dd355/innerbreed/100_1970.jpg
http://i531.photobucket.com/albums/dd355/innerbreed/100_2024.jpg


i dont mean to spam up your thread but im only trying to help you get some ideas.
the reason for putting the sway servos in cased with in the body was to allow for more side motion plus its less added weight in the flighted leg from the hip.


I like these two designs.. However, I've came to the relazation that standard hobby servo's suck, and with that being said, I think Shadow scout is probably a dead project. I had way too many problems with the gait.. and frankly, the weight of the brackets and payload of the mech gear was just too much.. I could probably get it to work buy converting it to a normal humanoid stance and humanoid upper torso, putting the batteries in the feet, and changing the servo's around like you did. However, I've moved on to the AX-12+'s and the Bioloid platform. For the amount of money I put into the servo's alone, I could have purchased a complete Bioloid kit.. (Which I just recently did) and that's not counting the cost of the scout brackets and the ED-209 chassis, and extra hardware (Standoffs etc) that I needed. It pissed me off last year and I've not touched it since I got back from RoboGames 09. So, I'm done. :happy:

Thanks, Connor