RoboSavvy Forum

The KHR-1HV Chronicles

2008-01-10T15:31:02+01:00

wintermute wrote:
Gosh, at 99,750 yen the 2350 conversion kit costs 80% of the price of the 1HV itself. (Although there's also a 2350 set below for 126,000, same as the 1HV.) Hardly cost-effective, but it's an alternative if cost is no object. Thanks for the info, Ray.

For a lot of the players here price doesn't seem to be a problem. Many of the ROBO-ONE and KondoCup participants are top level engineers or consultants and often have several humanoids they're working on at the same time. Dr. GIY is one of the best motor designers in Japan. Sugiura-san (Dynamizer) has his own consulting company that's well known for wind turbine design. Nao Maru (King Kizer) designs casting molds and automated equipment for one of the top 3 industrial valve companies, Maeda-san (OmniZero) works for V-Stone. Of course they don't spend money foolishly, but for them, it's not about being cost-effective, it's about being the best, and winning the competition.

Statistics: Posted by tempusmaster — Thu Jan 10, 2008 3:31 pm

The KHR-1HV Chronicles

2008-01-09T19:30:24+01:00

Gosh, at 99,750 yen the 2350 conversion kit costs 80% of the price of the 1HV itself. (Although there's also a 2350 set below for 126,000, same as the 1HV.) Hardly cost-effective, but it's an alternative if cost is no object. Thanks for the info, Ray.

Statistics: Posted by wintermute — Wed Jan 09, 2008 7:30 pm

The KHR-1HV Chronicles

2008-01-09T11:40:40+01:00

I'm wondering if the 1HV in the video has modified servo brackets or if the 2350 is a drop-in replacement for the weaker 788. True, the 2350 costs about three times as much as a 788, but judging from the 1HV in the video they definitely improve speed and agility.

here is the frames for 2350 servos:

http://www.kopropo.co.jp/cgi-bin/KO_Sho ... superkey=1

Statistics: Posted by Ray — Wed Jan 09, 2008 11:40 am

The KHR-1HV Chronicles

2008-01-09T08:12:39+01:00

I've heard it said that one of the 1HV's limitations is that its KRS-788HV servos cannot be upgraded without using different servo brackets, yet in an article about Kondo's RCB-3HV controller upgrade, tempusmaster introduces an accompanying video with this blurb:

The robot is a KHR-1HV equipped with the new controller firmware. This particular robot also has KRS-2350HV servos installed in the legs, though that is not related to the controller update.

I'm wondering if the 1HV in the video has modified servo brackets or if the 2350 is a drop-in replacement for the weaker 788. True, the 2350 costs about three times as much as a 788, but judging from the 1HV in the video they definitely improve speed and agility.

Statistics: Posted by wintermute — Wed Jan 09, 2008 8:12 am

The KHR-1HV Chronicles

2007-12-25T08:52:19+01:00

Haha finaly got mine it is finaly together at about 2:30 am christmass day lol... like my 5 dollar stand ?

sorry about the photo quality... cellphone cam

Statistics: Posted by zaboomafuu — Tue Dec 25, 2007 8:52 am

The KHR-1HV Chronicles

2007-12-22T21:05:46+01:00

err... this is all covered in the instructions - each servo is powered up and a position value set using the software app. before being put into the finished 'bot. There's no guess work involved - as long as you follow the instructions it's straightforward.

it's not quite like rc building where you simply power the servo to get it to center itself.

Statistics: Posted by plingboot — Sat Dec 22, 2007 9:05 pm

The KHR-1HV Chronicles

2007-12-21T04:12:20+01:00

it shows in the direction that you need to align the horns on the servos the easiest way I could think would just be hook all the servoes in to the controler board and power it up and get it to home position then put the horns on like it shows int the manuel... I shouls say that I am speaking from radiocontrol cars,boats, planes, heli exp my robot is stilling the mail....

Statistics: Posted by zaboomafuu — Fri Dec 21, 2007 4:12 am

The KHR-1HV Chronicles

2007-12-20T19:48:47+01:00

I see, however do I need to assemble the Robot in its totality or how do I check each servo individually? If so How do I check each servo individually? Any feed back is much appreciated.

Statistics: Posted by grasshopper — Thu Dec 20, 2007 7:48 pm

The KHR-1HV Chronicles

2007-12-20T19:11:19+01:00

yeah he just wants to make shure all the servos are at there home position b4 you put the horns on and in all the brackets just to power it up and se the robot curl up in to a ball. just to take it all apart again. we do that alot in rc cars I had one guy for get to do that and ended up smoking a 114.99$ servo becouse it peged to one side and kept pulling.

Statistics: Posted by zaboomafuu — Thu Dec 20, 2007 7:11 pm

The KHR-1HV Chronicles

2007-12-20T17:16:26+01:00

Hi,

sales rep told me to make sure to power each servor individually before powering up the whole Robot

he may want you to check sure that each servo function well before assembling.

Since all the motion file provided the manufacturer is relative to a "standup" pose, all people in the world can use the same motion files provided, once you have "calibrated" the robot.

just like a ruler you should mark a zero point before telling people which location is 1 inch , 2 inch, .....

Statistics: Posted by Ray — Thu Dec 20, 2007 5:16 pm

I finally Ordered the KHR-1HV

2007-12-19T20:28:10+01:00

Hi,
I am very excited, I just orderthe KHR-1HV through Robosavvy, however the sales rep told me to make sure to power each servor individually before powering up the whole Robot. The least I want to do is to break or damage everything, can you please tell me what are the steps needed for me to get the Robot in operational status. I also hear that is needed to zero the servors, can someone please explain this process. I apologize if this has been answered before.. Any feed back is much appreciated

Statistics: Posted by grasshopper — Wed Dec 19, 2007 8:28 pm

The KHR-1HV Chronicles

2007-12-19T11:16:05+01:00

ya!

anyway, it enough for general movement

Statistics: Posted by Ray — Wed Dec 19, 2007 11:16 am

The KHR-1HV Chronicles

2007-12-19T08:45:40+01:00

Very cool, Ray. That settles it, I'm going to use aluminum brackets to build my 1HV.

That one-servo leg-rotation system you linked to is very clever, even though it doesn't rotate the legs independently, right?

Statistics: Posted by wintermute — Wed Dec 19, 2007 8:45 am

The KHR-1HV Chronicles

2007-12-19T07:39:22+01:00

Hi,

Here is my KHR2HV with Chest Kit,

The aluminum plate looks good, but because less of elasticity,
the shoulder will easily deform when there is a side fall

By the way, Kondo has another simple rotation kit for the leg,
Just one servo enough to rotate the leg:

see the movie
http://www.robospot.jp/cgi-bin/diarypro/diary.cgi

Statistics: Posted by Ray — Wed Dec 19, 2007 7:39 am

The KHR-1HV Chronicles

2007-12-19T06:22:18+01:00

I've put it back together but haven't got it working again. But I will hopefully have it up and running in a couple of weeks so will up date.

Bren

Statistics: Posted by Robo1 — Wed Dec 19, 2007 6:22 am