Endless Sphere

People like cheap. You can experiment more when the price is right.

From another es post.
http://www.gizmology.net/sprockets.htm

Basically instructions for designing your own sprocket.

What’s desired? Chain type and tooth count for the sprocket?

If you can take a picture of the one you want in the correct tooth count, but incorrect center mount I may be able to help with a cad file. Please make sure there is a tape measure or ruler in the picture, I prefer metric. A lot to ask but this is how I work. I’ll double check the diameter size when...

The motor shaft is 17mm in diameter with a 5mm key down the side. The shaft is about 18mm in length.

Unconfirmed. Please test print with a 3d printer before sending your file out for cutting. Don’t know if nominal or actual etc. I’m not responsible basically. Please confirm on the motor you receive.

The 1000w does not have a tapered shaft.

Cool Things are moving fast with this motor. I see it attached to a swingarm soon. I’ll keep an eye on the adapter progress in case I want to ditch the belt for my 1st stage of reduction. Need a bigger rear chainring cyclone has a 90 tooth doesn’t give enough reduction for a single stage. So easy to...

Grantmac Spins fairly easily. More resistance turning very slow but not much if you spin anything above the slowest. I’ve thought of this also with this motor. In my mind it would have to be left side drive, zero free wheels and preferable single stage reduction right? The point is for regenerative ...

Any thoughts on these Panasonic batteries? Picked up 280 from a recycling bin at work. They are in packs of 20 for 24 volts with a date of only a few years old. I will post actual pack photo soon. This looks like the data sheet. https://www.digchip.com/datasheets/download_datasheet.php?id=3683005&pa...

Larsb I’ll try some test fitting with frames I have laying around and the motor. Above the seat stays is also an option. On long cruiser bikes you also have behind the seat tube but down low and inside the frame. I’m shooting for larger 27.5” x 3” tire on this ride but I’ll check for you smaller whe...

Comes in at just under 11lbs. You have to travel to find a scale these days.-

The measurements of this motor the Qs1000w mid motor. I’m going to use a necular controller 12f probably at 75 volts. Going to do a second 3d print of the main part any day. It has minor tweaks. Still don’t know the weight it is heavy, but appears to be high quality.

Yes it’s a qs motors qs1000 mid motor.

Crossbreak
I can provide measurements and the weight soon. I’ve pondered the inlay of metal with my designs and while printing. I’ve thickened my printing and go solid 100%. I will post a screen shot of the cad art soon. I only use PTEG filament.

Where I’m at now.
I used chopsticks as I haven’t measured for bolt length yet so loose fit. 69 hours of 3d printing for this. The main part was 50 hours, my longest print so far. About 9 ish hours each for the tube clamps. All printed with a solid 100% infill for strength.

Myself I’d be hesitant to say done at this stage.

I will be if things get even more expensive. I’ve started to get state taxed on my online purchases from Amazon and AliExpress and online bike stores like Jenson, etc. Will this push consumers to a supposedly cheaper USA made alternative? Right.

What’s your project? Sounds like a car conversion. I’m in Oxford near the Stevenson dam.

I had the same issue as a yourself but with the domino throttle. I used a 10k trimpot, the little knob type to easily adjust. I did find wiring diagrams that used the grounds. I choose to just use the trimpot inline with the throttle input voltage to reduce it. Think it’s the outer two pins and grou...

Tom Thanks for asking. No thread yet. At the figuring out how part. I have a new fork, a steel hardtail frame is on order. What’s in the picture is a 3d printed part. Mostly a test for the pulleys and jackshaft distance etc. I would like to put the motor in the frame. I was going to share the rear c...

You should never pay in full until the bike is ready to pick up. If anything a third to design the bike and get things going. A third before or after the parts show up and the final third when you see the FINISHED bike and are picking it up that day. That last third is the builders profit, not all b...

Have you tried car-part.com? A national database of car parts that are in junkyards. I have used it several times where the uniqueness of the part justifies the shipping. Rims, intakes, exhaust manafold etc not to big. I have not purchased batteries this way though. Leave the area of search blank to...

You’re not the only one.
My start.

It is a beautiful area. I was in the area for my uncles birthday in the fall. My wife and I passed on the $49 fee each, to enter the aquarium. We have a smaller aquarium near us in Mystic, CT. The next town to the south is Carmel, which is full of high end galleries and boutiques and great restauran...

Check your rear gearing. A large sprocket in the back gives a lot of torque. This is great for rocket take offs and hill climbs but the force pulling you back and you inadvertently advancing the throttle can be scary if you’re not prepared. Think this is called a whiskey throttle from the gas motorc...

I never heard of a chaincase before reading your post. Explains what I remember seeing on a bike a while back. It must have been a DIY version. It was made of the wire moulding stuff. It did not move but the bike and obviously the chain moved. I had to take a second look for sure. Thinking it was th...

When do you think the 12f controller will be ready? Don’t want to kill myself having a bike ready for spring or summer. The thought of the possibility is nice though.