RoboSavvy Forum

Hitec Updates and servo price drop

2006-09-24T11:35:29+01:00

Looking at the specs, though, the 5990s have less torque and are slightly slower than the 5995s......

I believe the torque is the same (30kg.cm @ 7.4v / 24kg.cm @ 6v), but yeah, they're a bit slower (.14 @ 7.4v / .17 @ 6v) ...but they're programable and support catch-n-play There's also the 5980SG, same as 5990, but minus the heat sink and TG's are replaced w/ SG's... lower cost. The 5650SG's have the same casings as the 59 series', but with nearly the same innards as the 5498's (but a little slower).
The 5498's are your true RN-1 replacements (well, we'll see once we can get ahold of some). They will operate at both 6v and 7.4v... meaning we won't have as much trouble running Li-Poly's! Their torque is 11kg.cm @ 6v / 13.5kg.cm @ 7.4, with a speed of .22 @ 6v / .19 @ 7.4. Nice!

The only beef I could possibly have with these is with their rotation. Not sure, but I don't think they've increased the range past 180deg. Some of the other brands are meeting the 260deg mark. That support would probably entail making changes to RoboBASIC app to use integers instead of bytes, but could also mean they could bump the resolution up quite a bit as well.... and those of you hacking the AVR who are waiting for a software upgrade to gain access to the bootlader would be happy too!

Statistics: Posted by bauermech — Sun Sep 24, 2006 11:35 am

Hitec Updates and servo price drop

2006-09-24T10:22:13+01:00

The pre-release servos Sumi-san is using are 'TG'

Yeah, the 5990's are TG (Titanium), and the 5498's are SG (Steel). I could see mostly the 5990's in Sumi-san's bot. Don't know if any 5498's were used. I had a very short time to check Arius out in the elevator... he just finished a round and had to get ready for the next.

I assume that the 5498's gear-sets could be swapped with the 5990's the same the 8498's can be swapped with the 5995's (with some modification of course... the unmodified TG's will ultimately increase the height of the 8498 servo by about .5mm+, just enough to NOT be able to fit in a std. RN-1 bracket).

Statistics: Posted by bauermech — Sun Sep 24, 2006 10:22 am

Hitec Updates and servo price drop

2006-09-23T22:18:52+01:00

bauermech wrote:
I can live with steel gears but titanium would be cooler

Amen at that... anything more durable than the "Karbonite" sounds good to me

The pre-release servos Sumi-san is using are 'TG'.

Statistics: Posted by tempusmaster — Sat Sep 23, 2006 10:18 pm

Hitec Updates and servo price drop

2006-09-23T22:07:32+01:00

beermat wrote:
bauermech wrote:From what I gather, the 5498SG's are totally swappable w/ the 8498HB's std. on the RN-1. The 5990's are ment to replace any 5995's for full catch-n-play support.

Looking at the specs, though, the 5990s have less torque and are slightly slower than the 5995s......

In Sumi-san's ROBO-ONE 10 post he says "HSR-5990TG felt more forceful compared with the conventional 5995TG(s)." (my translation from the Japanese)

Of course, it's totally subjective and very application dependent. He made a lot of changes to Arius for this competition including changing the knee design to double servos and eliminating the 'tiptoe' axis, so his comment isn't an apples to apples comparision.

Statistics: Posted by tempusmaster — Sat Sep 23, 2006 10:07 pm

Hitec Updates and servo price drop

2006-09-23T18:11:58+01:00

bauermech wrote:
From what I gather, the 5498SG's are totally swappable w/ the 8498HB's std. on the RN-1. The 5990's are ment to replace any 5995's for full catch-n-play support.

Looking at the specs, though, the 5990s have less torque and are slightly slower than the 5995s......

Statistics: Posted by beermat — Sat Sep 23, 2006 6:11 pm

Hitec Updates and servo price drop

2006-09-23T14:54:26+01:00

I can live with steel gears but titanium would be cooler

Amen at that... anything more durable than the "Karbonite" sounds good to me

Statistics: Posted by bauermech — Sat Sep 23, 2006 2:54 pm

Cool

2006-09-23T14:36:35+01:00

I can live with steel gears but titanium would be cooler

Statistics: Posted by Gort — Sat Sep 23, 2006 2:36 pm

Hitec Updates and servo price drop

2006-09-23T14:24:03+01:00

From what I gather, the 5498SG's are totally swappable w/ the 8498HB's std. on the RN-1. The 5990's are ment to replace any 5995's for full catch-n-play support.

Statistics: Posted by bauermech — Sat Sep 23, 2006 2:24 pm

Replacement?

2006-09-23T13:57:26+01:00

Can we replace the 8498 in are robonovas with them

Statistics: Posted by Gort — Sat Sep 23, 2006 1:57 pm

Hitec Updates and servo price drop

2006-09-23T10:28:34+01:00

Here's a quick video. My view of the table wasn't the best so I had to shoot the big-screen. Gives a good example of the performance improvements Hitec's making anyway.... http://www.youtube.com/watch?v=uGF6DXyGq8w

I know Sumi-san is using mostly the 5990's (ultra-torque) in his legs. I ran into him in the elevator, but due to language differences, it was a bit hard understanding each other at times and getting the nitty-gritty. Enjoy!

Statistics: Posted by bauermech — Sat Sep 23, 2006 10:28 am

Hitec Updates and servo price drop

2006-09-23T01:24:43+01:00

bauermech wrote:
I had the chance to see these suckers in action on the robot known as "Arius". They scream like the 5995's, but are fast and powerful. I'll see if I can't post the video sometime soon... have a lot to do though.

Arius (Sumi Family) is totally awesome, and unbelievably fast-

Sumi-san said that he was given some of the new servos for beta testing.

Statistics: Posted by tempusmaster — Sat Sep 23, 2006 1:24 am

Hitec Updates and servo price drop

2006-09-22T09:23:18+01:00

Probably won't see much on 'em before late October or into November... Maybe later depending.

Statistics: Posted by bauermech — Fri Sep 22, 2006 9:23 am

Hitec Updates and servo price drop

2006-09-22T08:51:21+01:00

I found some prices here, but not available !

http://www.robonova.de/store/home.php?cat=249

Statistics: Posted by i-Bot — Fri Sep 22, 2006 8:51 am

Hitec Updates and servo price drop

2006-09-22T08:46:30+01:00

Does anybody know availability and prices of these new servos ?

More detail on:
http://www.amerang-group.com/product_de ... 940&menu=1

http://www.amerang-group.com/product_li ... 234&menu=1

Statistics: Posted by i-Bot — Fri Sep 22, 2006 8:46 am

Hitec Updates and servo price drop

2006-09-22T03:10:57+01:00

That was one of the first mod's that I done to my RN-1 now Red like the one in the pic above...its posted on my profile.

Statistics: Posted by NewBreedWarrior — Fri Sep 22, 2006 3:10 am