Nabble - LEGO Robotics

Is it normal that my local FLL knows nothing about AFOLs?

2008-10-11T02:02:40Z

OK, so I got roped into going to a meeting of a fledgling Robotics League in
Orange County, California. They invited me because one of the founders of the
League knew I was into Lego. There were several FIRST and FLL coaches,
mentors,and club organizers from other areas of SoCAL present. The idea was to
use their expertise to help start up new teams in my area. But while there was
plenty of talk about involving local schools, afterschool programs, churches,
etc. no one had any idea ADULTS were into this stuff.

Huh? I've never been involved with FLL before, and I've been out of the AFOL
scene entirely for years now, but I thought AFOL groups and FLL were intimately
connected. When I told these people there were internantional conventions, LUGs,
websites, Lego trains run by RCXs, GBCs, Moonbase, etc., they looked at me like
I was speaking in tongues. Then after humoring me for awhile they went on with
the "real" organizing...

Has this been the normal reaction most of you have experienced getting into FLL?
Or is FLL something AFOL are just aware of and not really interested in?

Anyone in OC (or anywhere, for that matter) know how to root out some closet
AFOL who might be interested in starting up/mentoring new FLL teams? Evidently
there are only FOUR teams between LA and SD county!

Darrell

Group needing help with a sumo event

2008-10-08T09:34:14Z

I had a rather out-of-the blue request recently, and thought I'd toss it out to
the community at large. A women from the National Society of Black Engineers got
in touch with me about making sumo rings for them: they have six events
scattered around the nation with a national final in Las Vegas. I think this may
be the first time they've done this, and I sent them instructions on how to make
a ring. They asked if there might be anyone local to the events that could help
out by renting or loaning a ring (I think they're going with 4' diameter, 2"
white border). So, I thought I'd give people the chance. Here are the
times/places of the regionals; can anybody help these folks out? I'll put you in
touch if you think you could.

2008 FRC Locations:

Region I
Sheraton Parsippany
Parsippany, New Jersey
November 6 9, 2008

Region II
Sheraton Norfolk Waterside
Norfolk, Virginia
October 31 November 2, 2008

Region III
Wyndham Jacksonville
Jacksonville, Florida
November 21 23, 2008

Region IV
Marriott Renaissance Detroit
Detroit, Michigan
November 21 23, 200

Region V
Crowne Plaza Dallas Galleria
Dallas, Texas
October 30 November 2, 2008

Region VI
Marriott Redmond
Microsoft Conference Center
Redmond, WA
November 7 9, 2008

Can anybody help them out with a ring or two, or on-site advice?

--
Brian Davis

Re: Help vintage 1093 Interface A

2008-10-08T01:31:25Z

samurai74 ha scritto:
> Ciao to all,
> I need your help concerning the vintage 1093 Interface A.
>
> ....
>

> Dino Baldi

Prova a guardare questo:
http://www.1000bit.it/support/manuali/apple/lego9767/lego9767p.pdf

CAD and FIRST Lego League (FLL)

2008-10-07T18:04:05Z

Hello again all,

It's been awhile since I've frequented these parts, but I thought I would throw
this out there anyway and see if anyone could help me.

I teach CAD at a Community College in Southern California. Our Electronics
Department Head is helping to organize a FIRST Robotics League for this area,
and he invited me to participate.

Questions:

Is LDD (or any CAD system) used by FLL teams? If so, how? Is there someone (e.g.
at Lego) I can contact for more information on this?

I seem to recall asking this in the past and having mentors tell me the kids
don't have the time/skills to learn CAD (they're too busy learning the Lego
structures and building to be concerned with virtual tools). Is this still the
case?

Should I mention LDraw at all? Or is that way beyond the scope of what rookie
teams should consider?

I know Autodesk is a major sponsor of FIRST at the High School level, where they
give the kids Inventor and 3DSMAX to use for designing and presenting their
robots. But do they do anything with FLL?

Any help would be greatly appreciated!

Darrell Urbien

Re: LEGO RCX (Line & Light Follower) & NXT (Fighter)

2008-10-03T04:11:34Z

> You can see them in action:
> http://kile.stravaganza.org/project/lego-robot-line-follower

Good designs (robots AND website)!

Philo

LEGO RCX (Line & Light Follower) & NXT (Fighter)

2008-10-02T23:25:44Z

Hi all,
I just upload two articles of three LEGO robots I've made, 2 RCX able to follow a light and a line, and one NXT to fight sumo.
Right now I've just "clean" the code of the line follower, as soon as I'll make the other code available I'll post here.

You can see them in action: http://kile.stravaganza.org/project/lego-robot-line-follower

Re: need to make a 15 degree angle

2008-10-02T13:06:21Z

Here is the finished frame.

http://www.flickr.com/photos/27256177@N06/2906476210/in/set-72157607558855598/

If you look at the other pictures in the photostream for the ship (yeah, it's a
spaceship) you'll see the paneling on the frame and a mockup of what the
paneling looked like on the ship before i had a frame. The original spacing and
angles were a little different than the final result. Not sure how i feel about
that yet. Comments and criticism are of course welcome.

Re: need to make a 15 degree angle

2008-10-02T12:34:57Z

In lugnet.robotics, Nick Kappatos wrote:

> Further measurements show that connector #3 is 22.5 degrees - this means you can
> use these to make a jointed 90 degree arc with 5 panels (the ends would be
> perpendicular to each other). Would this meet your design requirement?

The arc in question only covers 75degrees (5 panels, the first starting at a 15
degree angle). i managed to make it effectively with the suggestion of
triangles out of technic pieces. triangles made of two 1X6 technic bricks and
one 1X2 brick with two holes. it makes a 14 and some degree angle, which is
close enough for my purposes. Thanks everyone for your suggestions, i really
appreciate it. I'll follow up with a render of the armature. Doing all this in
MLCad, so experimentation with angles goes kind of slow, but the final product
is nice.

Re: need to make a 15 degree angle

2008-10-01T20:01:27Z

In lugnet.robotics, Sam Pagel wrote:

> In lugnet.parts, Brian Davis wrote:
>> In lugnet.parts, Sam Pagel wrote:
>>
>>> anyone know of a part or combination of parts that would
>>> make a 15 degree angle... i have lots of room to work
>>> with, just have no idea how to achieve the angle.
>>
>> Well... as a Technic type, I'd do that with triangles. A long Technic beam as
>> the base, and another almost-as-long for the slope, with a small beam for the
>> "back" or "support" - since you can join these by pins, the geometry is rather
>> variable. How close you need to get to 15°, and how much space you need,
>> constrain the problem quite a lot - but an adjustable framework of beam-and-pin
>> pieces should give you just about any angle you need.
>
> It doesn't need to be exact, just repeatable. I need to make an armature of 4
> or 5 successive 15degree "turns" to support some panels that are making sort of
> a jointed arc. I'll give the technic pieces a try. Almost jumped for joy at
> Nick Kappatos's suggestion of technic angle connector #3, but it is, alas, 30
> degrees.

Further measurements show that connector #3 is 22.5 degrees - this means you can
use these to make a jointed 90 degree arc with 5 panels (the ends would be
perpendicular to each other). Would this meet your design requirement?

Re: need to make a 15 degree angle

2008-09-30T20:42:19Z

In lugnet.parts, Brian Davis wrote:

> In lugnet.parts, Sam Pagel wrote:
>
>> anyone know of a part or combination of parts that would
>> make a 15 degree angle... i have lots of room to work
>> with, just have no idea how to achieve the angle.
>
> Well... as a Technic type, I'd do that with triangles. A long Technic beam as
> the base, and another almost-as-long for the slope, with a small beam for the
> "back" or "support" - since you can join these by pins, the geometry is rather
> variable. How close you need to get to 15°, and how much space you need,
> constrain the problem quite a lot - but an adjustable framework of beam-and-pin
> pieces should give you just about any angle you need.

It doesn't need to be exact, just repeatable. I need to make an armature of 4
or 5 successive 15degree "turns" to support some panels that are making sort of
a jointed arc. I'll give the technic pieces a try. Almost jumped for joy at
Nick Kappatos's suggestion of technic angle connector #3, but it is, alas, 30
degrees.

Re: Slope Brick 1x1

2008-09-29T04:38:34Z

In lugnet.robotics, Philippe Hurbain wrote:
>> Indeed. I make it 31 degrees.
>
> ...but if you look at the overall slope of the part, it is closer to 38 degrees.

So what name do we give this piece? Slopebrick 33, 45 or rather 38?

Re: Slope Brick 1x1

2008-09-29T02:45:04Z

> Indeed. I make it 31 degrees.
>
...but if you look at the overall slope of the part, it is closer to 38 degrees.

Philo

Re: Ordering custom-cut plastic gears for Legos

2008-09-29T02:11:05Z

> Does anybody know what companies I can buy custom-cut plastic gears from
> that will mesh with Lego gears?

One problem is that changing teeth number also change gear diameter... and you
will run into some troubles with LEGO grids.

Philo

Re: Ordering custom-cut plastic gears for Legos

2008-09-26T21:45:10Z

In lugnet.robotics, stathmk <stathmk@...> wrote:
> Lego gears only have 8, 16, 24, or 40 teeth.

And 12, and 14, and 20, and 36, and then there's that worm-gear. And that's not
even getting into the old-style gears, or that odd 4-tooth knob gear (though
that's really only useful with other 4-tooth knob gears, so it doesn't really
help you).

Ordering custom-cut plastic gears for Legos?

2008-09-26T12:06:55Z

I've seen web pages about Lego clocks such as this one: http://www.popbubble.com/Lego/LegoClocks/
and I want it to be my hobby to make a clock out of Legos. I'm trying to copy a foreign clock and I'm waiting to get contacted back with info about the number of teeth for every gear.

Lego gears only have 8, 16, 24, or 40 teeth. I can't remember off of the top of my head if Lego gears are 24 or 36 pitch.

Does anybody know what companies I can buy custom-cut plastic gears from that will mesh with Lego gears?

Sample Chapter of LEGO NXT Mechatronics Book Available

2008-09-19T10:27:38Z

Hi All,

I've just updated a sample chapter of the LEGO NXT Mechatronics:Intelligent
Machine Concepts book I'm writing to my blog.
<http:www.family-science.net/Blog.htm>. My goal is have the manuscript completed
by the end of the year. Enjoy!!!

Don W.

Re: PnP, an NXT-based "industrial" robot

2008-09-17T23:43:06Z

On Wed, Sep 17, 2008 at 09:23, Brian Davis <brdavis@...> wrote:
>
> [...] Well, speaking of computer angst, I only realized after the fact that PnP can
> literally push it's own off button, turning the NXT brick off on it's own. Maybe
> these creations are getting a bit to powerful...

Nah. Pressing the OFF button is OK. It's when it starts pressing the
ON button that
you have to worry. That's why one of my personal rules is "the
deadlier the robot,
the shorter the extension cord."

BTW, not only is the 'bot nice, simple and clean, but so is the video
presentation.
Too many of us build nice stuff, but then fail completely in
presenting it. I wonder
how many time the wheel was invented and lost, because nobody but the inventor
knew about it? (This is back in the days when acing a course in mechanical
engineering at MIT was a lot easier.)

--j

Re: PnP, an NXT-based "industrial" robot

2008-09-17T09:23:39Z

In lugnet.robotics, Chris Magno wrote:

> This is a nice robot.

Thank you. Like I said, you guys (rtl) are at least partially responsible (or to
blame) for this, so I thought I'd flag it your way.

> Ive not been on RTL for a bit (computer angst)

Well, speaking of computer angst, I only realized after the fact that PnP can
literally push it's own off button, turning the NXT brick off on it's own. Maybe
these creations are getting a bit to powerful...

--
Brian Davis

Re: PnP, an NXT-based "industrial" robot

2008-09-16T17:37:42Z

Brian,

This is a nice robot. Ive not been on RTL for a bit (computer angst) but this
was a nice video and robot to watch.

Keep up the good work

Regards

Chris

In lugnet.org.ca.rtltoronto, Brian Davis wrote:

> OK, I had to post this in rtl because I confess the main inspiration for this
> was watching Ian's amazing LEGO industrial P&P automations over the years. This
> isn't nearly as fast as his, but it's the first time I've captured a motion I
> really like, and I'm happy with the extensibility of it:
>
> http://www.youtube.com/watch?v=-ZolqjEnhB4
>
> OK, it could use a better name, but still. The other inspiration for this was a
> contest I was in a while ago, to replicate a cube of 2x4 bricks. A lot of the
> folks involved seemed to think that the lack of easy linear mechanism in the NXT
> set was a significant problem. I didn't see it quite that way, at least not when
> I had all these motor encoders "free" with the NXT, and decided to base mine
> entirely on non-linear motion. I didn't quite finish it (gearing to push the
> 2x4's firmly together was a stumbling point), but really liked the manipulative
> mechanism, so I improved it and started testing it. Since one of these "arms"
> only needs two NXT motors, two NXT sets could drive three of these setups,
> leading to a fun looking assembly line.
>
> I'll toss some pics up on Brickshelf if anyone is interested, but really, this
> is awfully simple - most folks here could replicate it from the video alone.
> It's just fun to watch it work with that precision for a long period of time.

AW: Primer on writing NXT-G blocks?

2008-09-16T12:01:13Z

Well, they sometimes need to be inquired after a while - in my case, I never
got an answer to my first request. Only when having asked about it on some
"informal" channel, they sent it rather quickly.
But that's just my personal experience and might be a singular exception to
the rule (?).

- MP

-----Ursprüngliche Nachricht-----
Von: news-gateway@... [mailto:news-gateway@...] Im Auftrag von
Dave Curtis
Gesendet: Dienstag, 16. September 2008 18:06
An: lugnet.robotics@...
Betreff: Re: Primer on writing NXT-G blocks?

In lugnet.robotics, Michael Gasperi wrote:
> Right now I don't know of any better resource than just looking at
examples like
> Steve's. However, there is a book I wrote titled "LabVIEW for LEGO
MINDSTORMS"
> that will be out this Fall that contains a primer on writing NXT-G blocks
as
> well as general programming in LabVIEW for the NXT.

Thanks for the input, guys. Right now I'm stuck waiting for NI to act on my
request for the student edition of LabVIEW -- they don't seem to be very
speedy.
How long do they usually take?

-dave

Re: Primer on writing NXT-G blocks?

2008-09-16T09:06:21Z

In lugnet.robotics, Michael Gasperi wrote:
> Right now I don't know of any better resource than just looking at examples like
> Steve's. However, there is a book I wrote titled "LabVIEW for LEGO MINDSTORMS"
> that will be out this Fall that contains a primer on writing NXT-G blocks as
> well as general programming in LabVIEW for the NXT.

Thanks for the input, guys. Right now I'm stuck waiting for NI to act on my
request for the student edition of LabVIEW -- they don't seem to be very speedy.
How long do they usually take?

-dave

Re: Primer on writing NXT-G blocks?

2008-09-15T18:10:19Z

Right now I don't know of any better resource than just looking at examples like
Steve's. However, there is a book I wrote titled "LabVIEW for LEGO MINDSTORMS"
that will be out this Fall that contains a primer on writing NXT-G blocks as
well as general programming in LabVIEW for the NXT.

Re: Primer on writing NXT-G blocks?

2008-09-13T17:06:19Z

On Sat, Sep 13, 2008 at 7:48 PM, Dave Curtis <n6nz@...> wrote:
>
> Please pardon if this is a FAQ. I thought I would write some simple NXT-G
> blocks, but couldn't google up anything that looked like a HowTo on the topic.
> I've downloaded the SDK material, etc. What I'm really looking for is a simple
> "hello world" style example that walks through how to create a skeletal block.
> TIA -dave

Dave,

While I don't know of anything like that, all the blocks on my page
are unlocked, so you can check them out.

http://www.teamhassenplug.org/NXT/

Hope that helps

Steve

Primer on writing NXT-G blocks?

2008-09-13T16:48:44Z

Please pardon if this is a FAQ. I thought I would write some simple NXT-G
blocks, but couldn't google up anything that looked like a HowTo on the topic.
I've downloaded the SDK material, etc. What I'm really looking for is a simple
"hello world" style example that walks through how to create a skeletal block.
TIA -dave

Re: Help locating RIS 2.0 and updating from 1.5

2008-09-10T15:13:35Z

What's the url for the torrent site?

Thanks!

-- Perry

On Sep 7, 2008, at 4:07 PM, wotua_doinov wrote:

>
> Many thanks to John who pointed me to a torrent site.
>
>
> wotua_doinov wrote:
>>
>> Hi all,
>> My Mindstorms kit has been gathering dust for sometime but I just
>> unpacked
>> it (my daughter is now old enough to join in). However I'm having
>> loads
>> of grief trying to run it under XP. I read that RIS2.0 supports XP
>> and
>> the brick can be flashed with RIS 2.0 with the more powerful
>> instruction.
>> However I can't find a RIS2.0 CD. I tried Lego, but they couldn't
>> supply
>> one.
>>
>> Does anyone know how/where I can get RIS 2.0?
>>
>> Cheers... Martin
>>
>
> --
> View this message in context: http://www.nabble.com/Help-locating-RIS-2.0-and-updating-from-1.5-tp19357571p19363548.html
> Sent from the LEGO Robotics mailing list archive at Nabble.com.

Re: Help locating RIS 2.0 and updating from 1.5

2008-09-07T16:07:17Z

Many thanks to John who pointed me to a torrent site.

wotua_doinov wrote:

Hi all,
My Mindstorms kit has been gathering dust for sometime but I just unpacked it (my daughter is now old enough to join in). However I'm having loads of grief trying to run it under XP. I read that RIS2.0 supports XP and the brick can be flashed with RIS 2.0 with the more powerful instruction. However I can't find a RIS2.0 CD. I tried Lego, but they couldn't supply one.

Does anyone know how/where I can get RIS 2.0?

Cheers... Martin

Re: Help locating RIS 2.0 and updating from 1.5

2008-09-07T10:08:04Z

Have you tried <http://www.bricklink.com/search.asp?itemID=46439&colorID=0
bricklink>?

Help locating RIS 2.0 and updating from 1.5

2008-09-07T05:33:42Z

Hi all,
My Mindstorms kit has been gathering dust for sometime but I just unpacked it (my daughter is now old enough to join in). However I'm having loads of grief trying to run it under XP. I read that RIS2.0 supports XP and the brick can be flashed with RIS 2.0 with the more powerful instruction. However I can't find a RIS2.0 CD. I tried Lego, but they couldn't supply one.

Does anyone know how/where I can get RIS 2.0?

Cheers... Martin

Re: Asking for RIS 2.0 patch under Windows XP

2008-09-06T00:35:38Z

Hi all,
If your RIS 2.0 freezes under Windows XP when it tries to detect the USB IR tower, install this patch :
http://cache.lego.com/downloads/education/tower164.zip

Re: Go Team Hassenplug! PSumo at Brickfair

2008-09-05T08:28:47Z

In lugnet.robotics, William Toenjes wrote:

> Congrats to Steve Hassenplug on the mention at
> http://blog.wired.com/geekdad/2008/09/geekdad-invents.html
> PSumo Programmable Sumo Robots with LEGO MINDSTORMS at Brickfair
> For all the details see http://www.teamhassenplug.org/sumo/PSumo.html
> Even Tormod Askildsen (Head of LEGO Community Development) got in on the action
> :)
> RFID Sensors available at http://www.codatex.com/shop/
> Looking forward to the documentation so that less technically minded "Geek Dads"
> and our kids can wrap our brains around the constructions & programming.
> Hope to see this at Brickworld 2009!
> --
> Bill
> (TooMuchDew)
> G.M.L.T.C.

That's very cool!! Almost like using pre-programmed building blocks in a
computer (like Visual-Orieneted Programming), but instead..on cards! How cool
would it be for TLG to see "NXT motion packs" like trading cards? TLG could
make an NXT add-on pack for something like this.

Great job, Steve!!!

Go Team Hassenplug! PSumo at Brickfair

2008-09-04T18:28:01Z

Congrats to Steve Hassenplug on the mention at
http://blog.wired.com/geekdad/2008/09/geekdad-invents.html
PSumo Programmable Sumo Robots with LEGO MINDSTORMS at Brickfair
For all the details see http://www.teamhassenplug.org/sumo/PSumo.html
Even Tormod Askildsen (Head of LEGO Community Development) got in on the action
:)
RFID Sensors available at http://www.codatex.com/shop/
Looking forward to the documentation so that less technically minded "Geek Dads"
and our kids can wrap our brains around the constructions & programming.
Hope to see this at Brickworld 2009!
--
Bill
(TooMuchDew)
G.M.L.T.C.

2D sound localizing robot

2008-09-01T07:39:44Z

Here is our new sound localizing robot called Nic_3. It is capable of fixing the
azimuth of a sound source that is located in the horizontal plane. The
localizing process is done using the stereo audio amplifier that we already used
with Nic_1 and Nic_2. (For several reasons Nic_2 has not been published yet.)
The amplifier is directly connected to the RCX inputs 2 and 3. (input 1 is used
to power the sensor).

The RCX samples 2 x 1000 data-points on each ear at a frequency of 36kHz. Then
it processes the time-lag between both signals within 100ms. This is
impressively fast, because we apply a high speed phase detection.

The RCX repeats the sampling and detection process 10 times and takes the
average of the measurements. Then the RCX computes the azimuth from the time-lag
and sends the angle to the NXT through the HiTechnic IR-link.

The RCX program has been written in ULTIMATE ROBOLAB and H8-Assembler, while the
NXT has been programmed using the LabVIEW NXT-toolkit.

http://www.convict.lu/htm/rob/phase_detection.htm

Re: PnP, an NXT-based "industrial" robot

2008-08-31T12:12:29Z

In lugnet.robotics, Mike Hatton wrote:

> It is a nice action, is it accelerating?
> or fixed speed?, reminds me of a bird...

Yes, the motion reminds me a a bird as well sometimes. The speed of the arm
motions is under program control - it will slow down smoothly as it approaches
the target position, for instance, and some movements are set to accelerate &
decelerate. Actually, it will move much faster, but at the cost of being
jerkier. I don't have it set up right now to accelerate smoothly up to the
midpoint, and then decelerate smoothly afterwords (no reason I couldn't I
guess), so instead each motion has a user-defined "maximum speed" that it will
not exceed.

> I noticed you have a calibration with a
> limit switch under the 'place' rack, are
> your Pick racks also calibrated or fixed
> relative positions?

In this example, fixed relative position. In fact, it works best if you do not
attach the "racks" or "pallets" to the main structure, but position each
independently. Tied together, it's very difficult to get the exact spherical
symmetry required by the arm motions (although possible - adjustable connection
lengths with axles are great for this). As to sensors, the ideal thing would be
a sensor on the "finger" itself, but I didn't worry about autodetecting each
station - as in practice, each station might be doing something completely
different, and therefore need special code. It's a good idea, though.

> Also how are you detecting the last brick?

Right now PnP will not sort black - as that's the color of the of the "finger"
when it's empty. So if the arm waves in front of the sensor and the only
detected color is black, it assumes the EOAT is empty, and advances the internal
pallet counter. When it advances the pallet counter too far, it moves back to
the first, and repeats.

> Is this NXT-G still? (I know its your preference)

Yes - because it's bloody easy for a lot of things, and I actually think it's
kind of fun*. Also, there were several minor irritations that spawned this in
it's current form - one of which was the large number of people that I've heard
complain about how "poor" the NXT or NXT-G is at reliably positioning motors. So
I wanted to limit myself to a minimal set of "tools", and show that's it's
possible... not even that hard, actually.

> Its a very nice project I would be keen to
> see some closer pics/instructions

I'll toss some images onto BS when I get the chance. I should probably LDD the
PnP arm itself, as it has so few parts it would be pretty quick to do... but I'm
not sure all the parts I need are in LDD (the quarter ovals, for example).

--
Brian Davis

*Yes, I know many will think that's a strange, twisted, or even perverse
statement... but considering that we spent our time engineering using only small
plastic toys as a constraint, "because it's fun" seems a valid motivation to me
:)

Re: PnP, an NXT-based "industrial" robot

2008-08-31T09:00:04Z

In lugnet.robotics, Mike Hatton wrote:
> Also how are you detecting the last brick? it seems in the vid that it is using
> an assumed number of bricks rather than detection, I noticed this when it
> dropped the blue brick it did not move on but returned to the same rack.
>
> Mike

Doh being blind it did move on...

Re: PnP, an NXT-based "industrial" robot

2008-08-31T08:48:54Z

Nice work again Brian,

It is a nice action, is it accelerating? or fixed speed?, reminds me of a bird..
perhaps Peck'n'Place... :)

I noticed you have a calibration with a limit switch under the 'place' rack, are
your Pick racks also calibrated or fixed relative positions? if not maybe there
is room for another sensor on the base that rotates with the arm?

Also how are you detecting the last brick? it seems in the vid that it is using
an assumed number of bricks rather than detection, I noticed this when it
dropped the blue brick it did not move on but returned to the same rack.

Is this NXT-G still? (I know its your preference)

Its a very nice project I would be keen to see some closer pics/instructions

Regards,

Mike