Please check my config for a road bike

[Khumarahn]

Thank you I will try disassembling the motor when I get home, and will check the connection. Though I remember pushing the connector as far as it can go with a force that should have been enough. Anyway, I will recheck this when I get home.

In case if I have to replace the sensor(s) - what should I buy?

 

[Deleted member 4366]

I don't have my stuff to hand, but if you do a search on Endless-sphere, you will find it there.

There's a line on the connector which you must reach. Sometimes you can push very hard, and it's not enough. Sometimes you reach the line and it still doesn't seem to make contact, so you have to wiggle it a bit. I've had your problem several times, and always it's that connector. Once you have the connection, there will be no more trouble.

 

[Khumarahn]

Very interesting. The connector looks tight and reliable. If it fails... I wonder if everybody replaces it for something better... Anyway, I will check my setup soon.

 

[Deleted member 4366]

It doesn't fail. You just have to make it right in the first place.

 

[mountainsport]

Who do you want to believe?

Their rims are OK. They're 18mm between the flanges.

Who do you want to believe?

Their rims are OK. They're 18mm between the flanges.

I really liked that one d8veh, how dare anyone question your knowledge. If it were me I would have accepted being questioned.

MS.

 

[Deleted member 4366]

Since that post, others tried to run the Q100 series motor sensorless, and unfortunately for then, they also found out that it doesn't work.

My old Headmaster said to me when I was standing in his office at school, "Clever people learn from other people's mistakes; normal people learn from their own mistakes; and thickos never learn. You're clearly not in the first group, so let's hope you're in the second."

 

[Khumarahn]

I checked my connection, you were right... Amazing I didn't insert it fully when checking the wheel. I rechecked and found that the green sensor also works.

But with controller connected the voltage on the green wire does not go to zero anyway... The wheel rotates with knocking sound and LCD displays "03 Error". I sent them an email about this, and I will wait for the replacement controller, and see if that helps. It is a pity they cannot send the replacement earlier that Friday, which means a lot more waiting time adding up to more than two months since I made my order already.

They seem to insist that Q100 will be better with S06P than with S06S by the way...

 

[Khumarahn]

oh, I am lost. Now green sensor is always on on arduino without controller, in the same setup where it just worked.... Come on...

 

[Deleted member 4366]

A new controller won't help. Try again unplugging and re-olugging that connector. Push it in very hard.

 

[Khumarahn]

I tried re-plugging with no success... and I didn't unplug it after it worked fine in the first place. I tried to disassemble the wheel, unscrewed three bolts, but I don't understand yet how to rotate the lid.

 

[Deleted member 4366]

You have to take out one or more of the three screws in the side and then use the holes to turn the side-plate anti - clockwise. You can screw in a cap screw with a washer to cover the countersink, and then tap it round

 

[Khumarahn]

I tried it similarly to what you say, but the lid seems to very tight. I am looking for the ways to rotate is without doing any damage I will buy three much longer screws and will try to rotate them, as you described on the endless sphere...

 

[Khumarahn]

I just rode my first 5 miles on the converted bicycle. I have spent lots of time and money on it, and now have the first rideable version. I will post a detailed report with photos after I take some rest, and maybe finish some minor remaining work.

There's one major problem: I cannot make the motor work without LCD. My controller is S06S in the base of the bottle battery, and according to instructions on bmsbattery ( https://www.bmsbattery.com/attachment.php?id_attachment=55 ) I have to short two pairs of cables to use it without display. I tried this, and it works, but very weak, as if on level 1 of assist. With display everything seems to be as supposed.

I would appreciate any related knowledge. If it is possible to replace display with arduino program, that'd be also fine.

 

[Khumarahn]

Here are a couple of pictures of what I have assembled by now:


Everything is pretty much standard. Q100CST with 32 holes and 328rpm, bottle battery with S06S in the base. My own rim and spokes. Overall weight is around 15.3kg.

I didn't have room for the PAS sensor, so I took magnets from it and glued them to the smallest sprocket, as on the picture. I used black gorilla tape to fix pas sensor and all the wires on the frame. I spray-painted motor and spokes black, and will probably do the same with the battery. 9 speed shimano cassette works in place of 9 speed campagnolo just fine. I have shiftmate, but I am not sure I need it.

I had to order a replacement motor from BMS battery. In the first one, as I recently found, cable that comes out of the axes was damaged where it bends. Occasionally green phase wire touched green Hall sensor wire, and this burned one of the hall sensors. This is likely to be my fault, though that cable could have been protected better, and wires are of quite a low quality. It took a very long time to find the problem, even though now I know much more about these things, and would probably find it much faster.

I could not get rid of the display - without it the motor works very-very weak, as if on level 1 assist. I am looking for options. Would be wonderful to replace the display with a program running on the tiny arduino-like chip. I would then disable the motor while speed is less that 10mph.

I spent a lot of time on connectors, and making the wires shorter. Some stock connectors in S06S are too large to fit into the tiny bottle base. I had to cut them off and just solder wires together. I had to use soldering making cables shorter too, since it is difficult to find and buy the connectors that they use, and I would have to wait a lot for the delivery.

Are there any alternatives to soldering? How does everybody organize wires on the bicycle?

I still have to install brake sensor, and probably arduino that would turn off the motor on low speeds.

Many thanks to everyone for all the information I learned here, especially to d8veh!

 

[Deleted member 4366]

It looks nice with the black painted motor. I'm glad you found the cause of the problem and hope you get many enjoyable miles.

 

[Alan Quay]

Are there any alternatives to soldering? How does everybody organize wires on the bicycle?

JST SM connectors are the most common on the BMS kit that I have. You can get em on eBay, few quid for 10 kits, from China. If you are in a hurry, I expect RS or Farnell do them.

 

[Khumarahn]

I did first 100 miles, and I like my bike a lot. It is not a monster, but my time to work went down from 41--53 minutes to 28--32. And I don't sweat.

The bottle was too noticeable, and had to be painted black as well as the motor.