Recent content by DISH

Thanks for the info on the Hall power leads. I was hoping it would be obvious but I haven't cut the connector off yet and didn't know what colors I'd find. I tested the motors NO LOAD at 64v and they both pulled 57 watts (~1.17 amps) and were doing ~520 RPM. I had no intention of running this...

YES !!! :!: That is EXACTLY what I was going to do also. Both motors are presently running on a controller that does not require sensors. Next step is to sort out the leads going to the Hall sensors. If you already did this, what color wires supply +5 vdc to the hall sensors? Once I know...

Using the above figures I was able to lace the '-TOPGUN-' rim to a Bionx motor. Both radial and 1X pattern were tested and the spoke length was as expected as demonstrated in the following photo... The Bionx motor had the internal controller removed from it 4 or 5 years ago. It now has about...

To anyone needing ERD for this rim: I remeasured the rim and realized I forgot to add on 12mm x 2 for the nipples I used. :shock: Corrected ERD is ~375 mm. I have corrected the figures in the following post: ===== For anyone wishing to lace the rim to something else you will need to know the...

Axle on each side of the motor is a different diameter, different thread and each requires a different nut !!!

This is NOT a YouTube video. It's a file on my website. The link works. Unfortunately, video files are forbidden on Endless Sphere. You need to DOWNLOAD the video and save it to your hard drive. You also need a player that is capable of playing DIVX video files, such as VLC.

NOTE: Edited photos so they display properly... First Power UP Test... Motors arrived with the traditional '-axle sticking out of the box-'. ^^^ Nut came VERY CLOSE to falling off during shipment !!! White wire hanging out of wiring harness? Motor (NO LOAD) spinning at ~520 RPM @ 64.0 vdc...

Two questions I have not seen covered here: 1 - Anyone know the ERD (Effective Rim Diameter) of the 20 inch wheel that comes laced to this motor or if you have one in front of you, can you measure it? 2 - Anyone have the pinouts of the hall sensor connector? THANKS

The motor you mentioned in your notes that sells for $115 has a no load RPM of 550 RPM. I have NO EXPERIENCE with this motor. I have NOT had very good experience with planetary geared motors and tend to shy away from them at least for the non standard systems I have been working with. Both of...

If you have the motor I think you have it's rated RPM is ~2500 RPM at 36 vdc. With an 11 tooth gear on the motor and a 44 tooth gear on a 700c wheel the wheel would be turning at 625 RPM (2500/4) and with that diameter wheel would be doing around 50 MPH !!! Now you can go that fast on a...

Buss bar across bank of 2600F Ultra-Cap that I've been playing with.

Did some snooping and found this: Handbook of small electric motors By William H. Yeadon, Alan W. Yeadon 2.51 Abstract http://books.google.com/books?id=TsXEHPofiAYC&lpg=SA2-PA51&ots=QNOM9d7n52&dq=powered%20iron%20vs%20laminations%20brushless%20motor&pg=SA2-PA51#v=onepage&q&f=false "A new soft...

Did some snooping and found this: 2.51 Abstract http://books.google.com/books?id=TsXEHPofiAYC&lpg=SA2-PA51&ots=QNOM9d7n52&dq=powered%20iron%20vs%20laminations%20brushless%20motor&pg=SA2-PA51#v=onepage&q&f=false Double post again. Sorry... :oops:

Four of the internal controllers I blew were the newer type with current limiting. I've never had an issue with excessive current. In all cases the MOSFETs exploded while blasting down a hill in excess of 40 MPH. Most likely due to excessive back EMF from the motor. In my case the MOSFETs...

I can confirm what others have told you. When I removed the internal controller from my first Bionx motor and connected it to an external NON Bionx controller I used the same 36 volt (42.0 volts hot off the charger) Li-Ion battery. The system performed pretty much the same as it did with the...