Search found 125 matches

by jwiger
23 May 2015, 02:57
Forum: Open Discussion
Topic: Which EV3 version to buy ?
Replies: 1
Views: 5795

Re: Which EV3 version to buy ?

The 45544 set is the LEGO education set, it comes with a nice plastic tub to keep it organized, if you're into that kind of thing. It also uses a more classic style ultrasonic sensor versus the new IR sensor. It does come with a gyro, but does not come with a remote.
by jwiger
16 Apr 2015, 04:42
Forum: Mindstorms Projects
Topic: NXT Shooting Gallery
Replies: 4
Views: 7072

Re: NXT Shooting Gallery

I'm sure he could, but then you would be stuck at a cable length from the targets, and not challenged by wireless communication!

I like it!
by jwiger
24 Feb 2015, 03:51
Forum: Open Discussion
Topic: Big toy (not LEGO) project (single in, dual out PID?)
Replies: 0
Views: 4147

Big toy (not LEGO) project (single in, dual out PID?)

Folks, I have been off this board for a long time now. Since I got back from a deployment in 2012, I have been distracted by other projects. For example: 1985 Electric Mustang The car is going to hit the road with a Warp9 Series Wound DC motor driving the car. These motors are great torque/cost, but...
by jwiger
04 Jul 2013, 16:32
Forum: Mindstorms Hardware
Topic: EV3 pre-order?
Replies: 20
Views: 15702

Re: EV3 pre-order?

That seems odd. I have bought things from the US EDU site. Perhaps you just can't pre-order unless you are a school?
by jwiger
26 Jun 2013, 01:52
Forum: Mindstorms Projects
Topic: Efficiently running RC motor with NXT
Replies: 4
Views: 7673

Re: Efficiently running RC motor with NXT

Hopefully someone with more knowledge on the motor driver circuits of the NXT can chime in on here....
by jwiger
24 Jun 2013, 04:53
Forum: Mindstorms Projects
Topic: Efficiently running RC motor with NXT
Replies: 4
Views: 7673

Re: Efficiently running RC motor with NXT

I strongly recommend reading this (maybe even saving the link) http://www.philohome.com/motors/motorcomp.htm The problem is the RC motor draws over twice the current of the NXT motors. So you are having a voltage drop issue, in fact it's quite risky to run the RC motor directly from the NXT as you c...
by jwiger
06 Jun 2013, 02:47
Forum: Mindstorms Projects
Topic: SORT3R, my first EV3 robot
Replies: 11
Views: 14955

Re: SORT3R, my first EV3 robot

+1 for the personality. Well done Philo!
by jwiger
05 Jun 2013, 12:34
Forum: Open Discussion
Topic: Frictio v/s Precise Movement!
Replies: 2
Views: 3679

Re: Frictio v/s Precise Movement!

This is just a random idea, but have you looked at how large walking cranes move? They have a big round foot suspended between their landing gear that drops down and lifts the crane up, then rotates to move the large crane in a very precise way along the rough rocky/dirt base of a mine or quarry. It...
by jwiger
23 May 2013, 04:22
Forum: Mindstorms Hardware
Topic: MinuteBot Baseplate
Replies: 4
Views: 4343

Re: MinuteBot Baseplate

Yup, Ft. Hood. Central Texas.
by jwiger
18 May 2013, 04:18
Forum: Mindstorms Hardware
Topic: MinuteBot Baseplate
Replies: 4
Views: 4343

Re: MinuteBot Baseplate

Mine is the same way, and some of the holes are a little tight for axles to spin nicely but i think they could be cleaned up with a quick drillbit spin-through. I to have not done much with mine. there is a little video out there of the first contraption I made on it. But it has sat since then, I ha...