The wheels I am getting have the motor, gearbox, and wheel all in one package, see attached data sheet. So taking the motors off seems difficult. Offsetting...
966
Michael
birdman_mi
Feb 1, 2012 2:00 pm
Jebediah, Those are some great looking motivators there. They look like a perfect starting point for a PC/laptop based mobile manipulator platform for ...
967
Randy Farmer
v1800list
Feb 1, 2012 2:47 pm
Wow, those things are nice, but huge. On such a light robot, I'd be worried about wheel spin. You might have to limit the acceleration to combat that. I could...
968
Dale Heatherington
dalesrobots
Feb 2, 2012 12:43 am
Thanks for posting that link. It has inspired me to start work on the maze reduction code in Polymax 9000 which I've put off for like 3 years. ... -- Dale...
969
Kirk Charles
k_w_charles
Feb 2, 2012 1:31 am
Cool Motors! I will challenge you to prove to me that non co-linear axles are less accurate than going without encoders. Kirk ... Charles Photography Portrait...
970
Ben Bradley
ben_nospam_b...
Feb 2, 2012 5:48 am
Apparently they make them without encoders, so perhaps the encoders are removable, and if so you could just offset the encoders....
971
tedrobotbuilder
Feb 2, 2012 2:23 pm
I don't see the tail-shafts in your CAD drawings. Once you remove the encoders the tail-shafts will still be there. Course you could cut them off but then...
972
Randy Farmer
v1800list
Feb 2, 2012 2:54 pm
I was looking for some shaft encoders to add to some motors. Looking at these. http://www.usdigital.com/products/e4p - Randy...
973
Michael
makopack
Feb 2, 2012 11:30 pm
Noticed today on the way home across top end 285 Eastbound that they'll be doing construction on 285 between Riverside + 400, up to 3 lanes blocked. You might...
974
Dale Heatherington
dalesrobots
Feb 3, 2012 12:02 am
Is this Saturday's RBMO doing maze or is that at the main meeting? -- Dale Heatherington http://www.wa4dsy.net/robot/...
975
Kirk Charles
k_w_charles
Feb 3, 2012 12:39 am
I-20 it is then Thanks Kirk ... Charles Photography Portrait Artists Kirk and Rachel Charles 1725 Blossom Lane kirk@......
976
Kirk Charles
k_w_charles
Feb 3, 2012 12:40 am
Maze I think ... Charles Photography Portrait Artists Kirk and Rachel Charles 1725 Blossom Lane kirk@... rachel@... Austell,...
977
Randy Farmer
v1800list
Feb 3, 2012 1:37 am
My nephew is going to be in town this weekend. Normally I'd bring him along since he does robotics with me, but we have a full day planned. Enjoy the Maze...
978
Denise
robotgirrl
Feb 3, 2012 3:01 am
Yes, it will be an aMAZEing time on Saturday...
979
Michael
makopack
Feb 3, 2012 4:43 am
Got the last of my parts today and have everything put together except the table edge + obstacle sensors (need to find or make some sort of brackets for them)....
980
Jebadiah Moulton
jebadiah123456
Feb 3, 2012 11:21 am
Kirk, Instead of proof how about half-assed critical thinking. From the cad drawing attached the one on the left shows that the wheels will want to travel...
981
Kirk Charles
k_w_charles
Feb 3, 2012 1:53 pm
Jebadiah, HACT with pictures. Looks like proof to me. I'm mostly convinced. It is really hard to quantify tire slip, but 30 degrees is a very large slip...
982
tedrobotbuilder
Feb 3, 2012 2:37 pm
You could use Dale's idea to offset but offset the encoders instead of the wheels. Ted...
983
botlanta@yahoogroups....
Feb 3, 2012 2:57 pm
Reminder from: botlanta Yahoo! Group http://groups.yahoo.com/group/botlanta/cal RBMO Saturday February 4, 2012 10:00 am - 12:00 pm (This event repeats every...
984
Dale Heatherington
dalesrobots
Feb 3, 2012 3:11 pm
I did not advocate encoder offset. I suggested motor offset but have the wheels still be inline by use of a 1:1 gear/belt/chain drive on one side (or both if...
985
Jebadiah Moulton
jebadiah123456
Feb 3, 2012 3:22 pm
Dale, the motors will be hard to remove I believe. Once I get them in my hands I may see that it will not be that hard. I think these motors are $600-$800...
986
Randy Farmer
v1800list
Feb 3, 2012 3:22 pm
Jeb, If you go without encoders, how about current sensing on the motors? You could detect both wheel slip (lower than expected current for the requested ...
987
Dale Heatherington
dalesrobots
Feb 3, 2012 3:23 pm
I did not advocate encoder offset. I suggested motor offset but have the wheels still be inline by use of a 1:1 gear/belt/chain drive on one side (or both if...
988
Michael
makopack
Feb 3, 2012 8:51 pm
Not sure that I'll be ready for Maze tomorrow, but I think I have what I need in place for the basic + advanced line following tomorrow and was wondering if...
989
Denise
robotgirrl
Feb 3, 2012 10:36 pm
That would be me :-) I'll bring all the boards with me tomorrow...
990
Wayne Salhany
waynesalhany
Feb 3, 2012 11:05 pm
Hi, After so much discussion on this, I'm surprised nobody has suggested doing the suggested offset in a vertical plane. Think 3D. Wayne ... You could use...
991
Michael
makopack
Feb 3, 2012 11:15 pm
Thank you :) I'm only going to be able to do some very limited tests tonight at home, so access to the "big board" would be very helpful....
992
Dale Heatherington
dalesrobots
Feb 4, 2012 1:18 am
Hello all. Unfortunately I did not get the maze solving code finished in time so my bot will only be able to run the maze with right or left hand rule. No...
993
Michael
makopack
Feb 4, 2012 2:37 am
Learned this the hard way... If there is the string "!!!" (or more ! in a row) in your sketch, it will fail to upload... Apparently the sequence !!! means...
994
Denise Joyce
robotgirrl
Feb 4, 2012 3:23 am
I am very excited to see all the chatter latey on the yahoo group. I will have the arenas at the RBMO tomorrow. Don't forget we will have a reporter there to...
