Philo

One more guy hooked to GBC...

I did indeed (as far as I remember it's not very difficult), but unfortunately I didn't make photos at the time. I successfully repaired a block in which batteries leaked, by cleaning/scrubbing, etc...

Just press "Esc" key to unselect!

Nice to see new names in GBC game ;)

Yes, it's bigger, but the planetary gears looks very similar. Inside M motor can be seen here: http://www.technicbricks.com/2009/09/tbs-technugets-10-inside-pf-m-motor.html @zblj: Looks similar indeed (photo), but the 2838 motor was not so different either (photo), with very different characteristics!

For the record, I opened the motor with only minor damage by cutting slantwise the 4 latches. It is then easy to open the motor by pulling apart halves, and as easy to reassemble...

As noticed by DLuders and Allanp, there were many inaccuracies in 5292 Electric RC Race Buggy Motor data. At the time, my testing equipment was insufficient and gave underrated values. The data about it is now updated and fully show its impressive capabilities! Updated motors comparison page No-load speed Speed and current vs. torque at 9V Motor power comparison chart

Definitely I need to redo the full test of this motor. I just made a quick check of end output at 1200 rpm@9V, 1600 rpm for the fast output. More... significantly later!

An error in values for 5292 motor in synthesis charts was found by DLuders and Allanp. These charts are now updated with right values. The 5292 is by far the most powerful guy, 60% more than PF-XL!

I went through the data used to create the charts, only minor adjustments... except for 5292 motor that was all wrong! Indeed, it is by far the most powerful guy, 60% more than PF-XL!

That's indeed the method I used... ...clearly you're right, I bugged (pun intended) somewhere for the buggy motor, I look more closely and update. Actually I should redo the tests for the 5292 motor, this beast was difficult to test with the setup I had at the time. Hopefully I could do better now. Indeed, there maybe a discrepancy between table values and bar chart. Table that gives power at some (non-optimal) load, it aims to compare the motors at various voltages.

A detailed review of the Power Functions servomotor, showing how it behaves under various loads. Enjoy! Philo

I think the noise is normal, caused by servo regulation. Note also that I was using the proportional output of rechargeable battery box, so transitions are not steep and clean. Maybe I'll re-shoot the video using IR remote.

Another version...

There is another method described here that works well: Put a half beam on the pin free end Push any 3.2mm element in the hole of the pin (antenna, bar, screwdriver...) Pull the half beam. The element in pin hole prevent it to go through half beam hole so the pin comes out attached to half beam. After that you only have to remove half beam and element from the pin, that's easy.

Yes! Actually the situation is even a bit worse when using an IR-receiver. The current in the motor for a given torque depends little on voltage, so it is the same at 7.2V or at 9V. As the dropout voltage of the motor driver depends on the current, it is also the same at 7.2V or 9V... so it has more effect at lower voltage! That's why I'd like to make extensive comparison between IR receivers, since v2 is supposed to have a lower dropout (and probably higher current rating)

Thanks for spotting! figures for electrical power were those of e-Motor... now corrected.

Yes, that's something I intend to do. But I'd like to put my hands first on a V2 IR receiver to make at the same time a comparison of the receivers (Got only the motors so far...)

Hello all, I just updated my motors comparison page with measurements of the new Power Function Large motor. Also includes a few new synthesis charts: Enjoy!

Or you may use LDraw Pattern Creator. Significantly more work than with sticker generator, but result has a much better quality!

Interesting... works well here! (Seamonkey browser) Have you tried LDView? it can export to .stl and .3ds, two formats that look supported by Blender (but I am NOT a Blender specialist!)

Touch sensors (either old RCX one or NXT one) are sensors and are NOT suitable to power devices. Their internal resistance is too high for that use (about 500 Ohms for RCX sensor, 2.2k Ohms for NXT sensor). I guess they might work with the really low power PFS LED lamps, but then you have another problem, the "normal" connexion you can get from a PFS <-> 9V cable puts the switch in parallel with supply and device, while a switch requires a series connexion!

Have you tried .stl file format? Maya is supposed to be able to read that (I don't know Maya!), and LDView does export LDraw towards that file format.

13) 3 votes 7) 2 votes 6) 1 vote 8) 1 vote

Tough choice! 2) 1 vote 10) 2 votes 12) 2 votes 41) 2 votes