Recent content by jmz

Crossposting from my build thread to ask some pack assembly advice: I am still at the point of having 20 out of 22 9p sub-packs constructed (see: https://imgur.com/a/gsK9c), I have the materials to finish the rest after ordering some replacement HG2 to replace the ones I blew up during my...

Hey sphere! I have resurrected my build thread to ask some advice. I am still at the point of having 20 out of 22 9p sub-packs constructed (see: https://imgur.com/a/gsK9c), I have the materials to finish the rest after ordering some replacement HG2 to replace the ones I blew up during my...

Getting close now! It's been a very painful process, but with 20 out of 22 9p packs welded, soon I will be able to start the actual pack assembly. https://imgur.com/a/gsK9c It seems that I have been getting myself in trouble for no reason by trying to weld with one electrode on the cell cases...

How should you size this? What margin would you add to a pack circumference?

I agree heartily with this; freewheeling diodes can reduce the requirement to dissipate inductive energy in the leads, but not in the battery/capacitor path. Hence, you can avoid a freewheeling circuit by making a more robust snubber. In my welder, each of the six switching cells has one...

I did find an empty plastic bag (and a machined disc brake spacer) in my QS box, hmm!

Hi Vito (and lurkers), I have a Mini-E and a QS205. The pinout of the QS hall connectors appears to be (looking at the pins of the motor side) ((+,T,-),(H1,H2,H3)). There are two redundant sets of sensors and connectors, and one supplied female connector. It had some goop installed over the...

I have a Mini-E and a QS205. The pinout of the QS hall connectors appears to be (looking at the pins of the motor side) ((+,T,-),(H1,H2,H3)). There are two redundant sets of sensors and connectors, and one supplied female connector. It had some goop installed over the end that the wires come...

I am currently building a pack without the use of insulators. I will be gluing and separating with kapton tape etc. to kep it rigid and avoid rubbing, but I am also interested in methods like conformal coating and even conformal coat + silicone potting to aid waterproofing and thermal...

Even with the Nyloc nuts? I'll be giving everything a tighten after the shakedown cruise. Maybe some threadlocker?

Built up my Q76R frame today: https://imgur.com/a/bMGZ4 https://endless-sphere.com/forums/viewtopic.php?f=3&t=79669&p=1183257#p1183257

https://imgur.com/a/bMGZ4 Bolted up the frame this weekend. Sticky business, molybdenum grease on every bolt and moving surface, but that should keep the bits happy. That QS motor has some serious cogging torque. The axle took two spacers on the drive side, which left the wheel nicely centred...

Can anyone share photos or installation details of the Qulbix-supplied headset installation (for a triple-crown fork)? It came with cups pre-installed, but I have no clue in what order the bits go. There is a black ring, a silver notched ring, the gimbal cover thing, and the top nut. I think...

Is the 8V for the lights pretty standard? I wonder what they think of the generic Cree T6 based lights, like http://www.ebay.com/itm/SolarStorm-12000LM-Bike-3-x-CREE-XM-L-T6-LED-Bicycle-Lamp-Outdoor-Headlight-Kit-/182047501951?hash=item2a62e06e7f:g:MEQAAOSwZ8ZW3nGO It seems that if you're...

Suitable DC-DC converters may not be as scarce as you think, as many AC-DC SMPS will be able to be run off a suitable DC voltage, as the front end is normally just a rectifier. If it has an active PFC front end that tries to do something fancy it might not like it, but it's worth trying if you...