Philo

D is a motor port, not a sensor port!!! IR sensor should be plugged in port 4...

Are you sure that the IR sensor is correctly plugged in port 4? Otherwise, built-in IR control program works with channel 1.

For the record, the test I made was done with 1.03E firmware.

There is a reprint of Kevin Clague's presentation about pneumatic state machines in free Hispabrick magazine, issues 14 and 15 (http://www.hispabrickmagazine.com/en/category/tags/download)

I just tested again (after system update), works fine on my Nexus 7 first version using Android 4.4.2 (it worked fine with previous versions too). I just had to pair the brick and the Nexus using Android BT search.

My two cents... I prefer to scan one forum than many more specialized ones. As for number of topics, I vastly prefer lots of small topics with well chosen titles than collect-all threads (eg. "Mindstorms general discussions").

:thumbup:

These steps can be highly simplified using Marc Klein's stl2dat converter. This command line tool imports text mode stl files, and directly output a LDraw compatible file. If you prefer a Windows GUI, Mikeheide's LETGUI (whose distribution contains stl2dat tool) can be used too.

I won't say it's impossible, but considering the low price on Bricklink (http://www.bricklink.com/search.asp?itemID=45580) I doubt it's worth the trouble. Otherwise you can try this kind of solution: See also http://www.thingiverse.com/thing:122810

Only the full RIS box was named 1.5, the RCX brick of that box was named 1.0. Early RCX (in RIS 1.0 kit) had a power jack, and later, the ones sold on Education market had one too. The RCX with jack: ...and without:

I sure enjoyed! Great to know who is behind this famous name...

Interesting entries... 8: 5 3: 1 2: 2 14: 2

LDrawed "Flip Model" arrow.... nice ;)

A camera works well too, that's what I did ;)

To celebrate this community project - and give tribute to PG52 awesome design, I propose to post here a photo of your Spirograph build, and one of your drawings. Tips and tricks: - I made my first try with a soft tip pen, but it didn't glide very well on paper, and the drawing was shaky. I got much better results using a liquid ink roller ball (a Mitsubishi Uniball Eye 0.7mm). - Place one or two sheets of paper below your drawing, to get a smoother and softer surface. Here is mine:

I chime in to praise the quality of your review, and especially of photography. Wow!

Better idea indeed! I had to choose connectors with tight connection to get a reliable linkage... (edit) Going on... - Step 10 page 38 is not clear; should get a callout showing the 4 pins. - A general note: LEGO (almost) never adds axle pins by pin connxion first, but always axle side first to prevent axle orientation issues. I don't consider this as very important, but... - Maybe step 55 would need a callout? - There is nothing holding the assembly of step 6 page 54, it should be placed after building the table. - related, assembly of step 17 page 60 is still tricky because of of rubber belt. - because of pin, axles of assembly of step 19 page 61 must be pushed in place after attachment of assembly.

(a few steps later...) - a few callouts arrows are not very well placed: main arrow page 4, page 23 step 33, page 40 step 28, page 29 step 43. - a little inconsistency: on one side, bevel gear is assembled directly at step 37, but on the other side it has its own step 46. - the assemblies at step 40 and 49 can't be fit as shown, the double bevel gear is too big. You have to mount T-beam+fork, then add axle and gears. - another point (but this one depends on the model, not the BIs): the links at step 36 and 44 are fragile, the end connectors tend to pull out. A beam assembly would probably be better.

Yes, the hovering callout is a good idea, it doen't prevent wrong assembly but at least it attracts attention of builder.

I finally started building yesterday evening, completed build up to step 24. BIs (Blackbird's V15) are very well done and rather easy to follow, just a few things I noticed: - hidden pins on step 6-7, issue already addressed by Freakwave - After building front gearbox (near step 10 of this submodel), I realized that the frames were not perpendicular to the 15L beams. But is was impossible to straighten them because gears were meshed in a way that locked the angle. I had to remove the 3 gear assemblies from step 5, straighten frames and put back again gear assemblies. Dunno how to convey this tip in BIs... - maybe the blue axle pins+connector #2 on step 12 and 13 would be worth a callout? - as shown, assembly of gears on back with half engaged axle4 is not easy (steps 19/20 and 22/23). I think it would be better to pre-assemble gears and bush on axle (callout) with axle and bush not completely pushed through (step 19 and 22) and add a push arrow on steps 20 and 23 to push axle and bush. ...I have not yet experimented Clutch-Gear orientation images, but thanks for detailed tip!

Indeed! Speaking of this, maybe it would be better to define arrows as separate submodels or parts to be able to ghost them too? Anybody already tried this? Hopefully this week-end...

Clutch gear hint looks very good for sure! If it's not too cumbersome to integrate it would be great to add to the BIs - Anyway I'd be happy to see your code! ...and you made me discover the RESERVE statement, thanks ;) Otherwise I just received the parts...

I think this is one of the targets of ...The PDF looks great, I like the Control Center Technic pen ;) I'm waiting for a Bricklink order (I was short of 87408 forks), I'll be finally able to build the model! Minor possible improvements: change orientation of L-motor and pen in PLI.mpd, increase parts size in final bom to fill page...

Ah - yes! we can see the pen attachment more clearly

Excellent, love the "punch tape" style programming!