No Toy Robotics

[harry hills]

Some really lovely little details on there, excellent work

[RogueTwoRobots]

Agreed. Looks so clean and shiny too

[adz600]

Quick update another bad weekend with ceros this time lasted nearly 2 minutes in its first and only fight of the weekend. But at least that is twice as long as the last fight. flipper working fine but drive seemed very slow. Just worked out the gear ratio and the max speed should be 11.437 mph with no losses but looked a lot less then that as tr2/and mm were almost twice as fast in the arena. not sure if this is down too the huge gearbox and drive losses with the gokart wheels or the the wotty problems we had.

any ideas, thinking of reducing the ratio from 19.4:1 to about 16:1 therefore giving around 14mph

[blazerbotics]

You put a tacho on the motors to make sure your getting full revs?

[adz600]

no but worth a shot if I could find a tacho or borrow one

[adz600]

?
http://www.ebay.co.uk/itm/Digital-La...item2c7c34df99

[maddox10]

Deal Extreme stuff. It works for a while.

[adz600]

any body used these npc motors, might make good single stage perm motor replacements little under powered but might just squeeze in

http://www.robotmarketplace.com/products/NPC-02446.html

[overkill]

NPC gear is generally good quality, although that motor looks like a generic Chinese design. For less money & weight, you can get the AmpFlow E30-150 Motor, which has more power and better construction. If you can deal with the extra RPM, it beats the NPC motor hands down. If you want more power, the AmpFlow F30-150 Motor still weighs less than the NPC one.

[adz600]

agreed but it also has treble the price tag out of my league im afraid

[overkill]

The E150 is $10 cheaper than the NPC motor with more power output and torque. as long as you can fit a bit higher gear reduction, its has to be better. I'm assuming its to drive the axe?

[adz600]

I have been looking at the e150 would just fit at a push with the extra gear stage. and it is to replace possibly the drive system on my hw ceros as the perms just don't work well and there is so little space to fit anything else.

[adz600]

generates the same power as bosch 750

[adz600]

torque is the problem#
bosch 750 - 11nm
e30 150 - 5nm

[blazerbotics]

You have to remember the Ampflow rating is peak power output, a Bosch, is 750 watts continuous, peaking at about 1.2kw.