SSU V1.25 Release

[Donamy]

Checked in new OBSS.ini with correcte forward grapple point.

 

[DaveS]

Seems like the grapple function is broken. Just did a whole bunch of attempted captures of the OBSS and I just couldn't get the Capture talkback to indicate a successful capture. And I know I was spot on both in terms of position and attitude.

 

[Donamy]

And the joint movement is just too slow IMO, especially the wrist roll.

 

[SiameseCat]

DaveS: I'll look at the grappling bug.

Page 10-12 of the PDRS checklist gives the RMS joint rates as:
1.27 for the shoulder joints,
1.78 for the elbow,
2.64 for the wrist
These joints are used for OBSS operations, but I'm guessing they're usually the same for all modes.

 

[Donamy]

Could we get a cheat mode ? It's like watching paint dry, waiting for them to move. I don't like using time skip, but that's just my opinion.

 

[SiameseCat]

Grappling bug should be fixed. The RTL talkbacks and cameras should also be working now.
Donamy: I'm planning to update the code to use the rates posted above, but I'd prefer not to add a cheat mode.

 

[DaveS]

Great work on getting rid of the bugs! Just one tiny thing: the view from the EE is off in rotation. I have attached a screenshot. It seems like it's off by 80 or so degress in roll.

 

[Donamy]

According to the mesh, the wrist cam center is -2.84,2.42,-5.20

the elbow camera's center is -2.68,2.64,2.07

note: mesh is in the stowed position

 

[Poscik]

Is there any way to calculate speed for AUTOPILOT line? I put ApA to 320km and from my calculations, speed for 320x50 orbit is 8019.623433 m/s. I know, that is a little too big value. I'm calculating speed with basic formula for 1st Space Speed (sqrt(sma * 9.81)).

 

[Urwumpe]

Is there any way to calculate speed for AUTOPILOT line? I put ApA to 320km and from my calculations, speed for 320x50 orbit is 8019.623433 m/s. I know, that is a little too big value. I'm calculating speed with basic formula for 1st Space Speed (sqrt(sma * 9.81)).

Your formula is completely wrong.

It is usually sqrt(sma/µ) with µ being the gravity constant for Earth (G * M) (remember units). And this formula is only for circular orbits, which you don't have there.

You need to calculate SMA for the ellipse and then use the vis visa function to calculate the velocity at MECO (in about 110-120 km altitude)

 

[DaveS]

Another RMS bug report: It seems like the IK could still use some tweaking, I still get jumps and EE attitude shifts after doing a manual joint adjustment or actually translate the RMS for the first time. Is very noticeable when you try to re-berth the OBSS. And speaking of that, what's the ETA on get those MRL talkbacks working?

Right now we can only guess when it is in the correct position for berthing and the MRLs have been RTL triggered.

 

[Poscik]

Your formula is completely wrong.

It is usually sqrt(sma/µ) with µ being the gravity constant for Earth (G * M) (remember units). And this formula is only for circular orbits, which you don't have there.

You need to calculate SMA for the ellipse and then use the vis visa function to calculate the velocity at MECO (in about 110-120 km altitude)

Thanks for help ; )

 

[SiameseCat]

I'll look at the RMS bugs. The EE camera should be simple to fix, but I'm not sure how much the IK can be improved.


-----Post Added-----


DaveS: I can't reproduce the EE camera bug. For me, the EE is always visible at the bottom of the camera view.
I have managed to improve the IK performance; the jump is still there, but it's not as large.

 

[DaveS]

DaveS: I can't reproduce the EE camera bug. For me, the EE is always visible at the bottom of the camera view.

Is this with a wrist roll of 90°s for OBSS grapple?

 

[SiameseCat]

At 90 degrees roll the camera position looks fine to me.

 

[Pantz Ninja]

Hey guys, great job so far on everything your doing!!! We are all looking forward to the finished product. Would it be possible for someone to describe in Layman's terms the problems you are still facing? All this technical jargon makes my brain hurt:rofl:.

 

[SiameseCat]

DaveS: I've managed to reproduce the EE camera bug. It seems to be associated with the camera direction and has nothing to do with the wrist roll joint (earlier, I assumed it was not compersentating for the wrist roll correctly). I really don't know how to fix this.


-----Post Added-----

Hey guys, great job so far on everything your doing!!! We are all looking forward to the finished product. Would it be possible for someone to describe in Layman's terms the problems you are still facing? All this technical jargon makes my brain hurt:rofl:.

The main problem I'm trying to deal with right now is getting the camera on the end of the arm to work properly; the camera view is in the right direction, but at an odd angle.

General question: How many people use the STOW button on the RMS control dialog? I'm wondering whether to remove it and let users stow the arm manually.

 

[DaveS]

General question: How many people use the STOW button on the RMS control dialog? I'm wondering whether to remove it and let users stow the arm manually.

Get rid of it. We're going to have auto-sequences eventually, so we might as well prepare for them.

And speaking of that, how's the starboard MRL RTL talkbacks coming along?

 

[SiameseCat]

I'm working on the RTL indicators at the moment. I'm planning to use the 'OS' attachment ID string to determine the OBSS attachment points; will this cause problems for something else?

 

[DaveS]

I'm working on the RTL indicators at the moment. I'm planning to use the 'OS' attachment ID string to determine the OBSS attachment points; will this cause problems for something else?

Not that I can think of. I guess soon the only thing that remains to be taken care of is ODS docking behaviour.