View Full Version : Sparky Plans Not Downloading

01-31-2013, 08:29 PM
I just bought the plans to this bike today, however whenever I try to save the link, I get a message saying,

"C:\Users\*****\Documents\Sparky.pdf could not be saved, because the source file could not be read.

Try again later, or contact the server administrator."

Has anyone else ever gotten this message? I have Adobe Reader. I followed the online instructions. Now I'm not sure what to do.


Radical Brad
01-31-2013, 09:42 PM
Hello and thanks for your support!

I just tested the link, and it worked fine. I am on the slowest of all internet connections ever conceived by mankind, so if it works for me, it should work for you.
if you still can't right click and "save as", let me know tomorrow and I will email you the PDF directly. Your ISP is probably resetting you for whatever reason.
I hear that some bad ISPs do this on peak times to prevent file sharing.... ack!


02-01-2013, 08:59 AM
Good news everyone!

After using three browsers to try and get the plans, I got an extension on Chrome that allowed me to save the file right to my Google Drive on my email. From there I was able to download it. Brad, you're probably right about my ISP. I'm definitely going to look into this. Anyways, I'm now going to look over the plans. I don't really have much experience with this sort of thing, but I'm going to try to learn from the people I know who do, and atomiczombie.com. I'll post updates when I start building this thing (whenever that may be)!

Radical Brad
02-01-2013, 11:49 AM

Feel free to fire away any questions, my computer is always tuned into the forum, and there is wealth of creativity in this great community.


02-01-2013, 01:30 PM
For the battery box, it says to use 1/16 inch thick angle iron, but I'm having a hard time trying to find some of that in stores online. Would 1/8 inch thickness work as well?

Radical Brad
02-01-2013, 02:35 PM
Yes, that will be fine.


02-02-2013, 05:11 PM
I've been trying to find a DC motor, but most of the sales don't have a wattage rating included. Does anyone know of a good place to buy motors that have the wattage rating included?

02-02-2013, 07:46 PM
http://endless-sphere.com/forums/ is a good place to sort truth from fiction. Find trusted vendors, etc.

A good place for geared hub motors. (http://www.em3ev.com/store/) My favorite.

Papa motors has direct drive motors. (http://www.electric-bikekit.com/templates/__custom/Promotion/electric-bike-conversion-kit-1000w.html)

A good article to help understand and a good supplier. (http://www.ebikes.ca/hubmotors.shtml)

If they don't give watts but do give amps and volts just multiply them together to get watts.
Amps * volts = watts.
Pay attention to continuous watts not peak watts.
More volts is good. (within reason)

02-02-2013, 11:04 PM
Are wheelchair motors any good for this bike? I found this on eBay:
Would this be alright for Sparky?

02-02-2013, 11:18 PM
I think Sparky is driven by a hub motor if I remember right. A hub motor is a very easy installation. Your e-Bay motor would require a method of mid-drive somewhere along the chain line. Could be done but more work. The e-Bay motor does not give an amp rating so I can't tell how many watts for which it is rated. Remember, you still need a controller, throttle, etc.
A hub motor kit would be a much simpler installation.

Radical Brad
02-03-2013, 12:00 PM
A wheelchair motor would work, but you won't be able to mount a sprocket to it. Those motors are designed to sit in a sealed gearbox and have tine output shafts. How much power do you want, and how much do you have in your $$$ budget. The Scott 2hp motor I used was really powerful, and there are even larger choices available.

A good PMDC motor can be found at an EV supply store.

This site has a decent selection...



02-03-2013, 03:45 PM
I don't have a huge budget at all. A few hundred dollars at most for now. I was looking at some of the stuff you used at this website:
It's pretty hard trying to find a motor with about 2.5 HP and all the other equipment yet stay within my budget at the same time. Where I live I'm pretty sure it's illegal to visit the dump for scraps.

Radical Brad
02-03-2013, 10:28 PM
Another option is to use a hubmotor on a 20 inch wheel. It will result in a larger minibike, but just as fun. But of you want that dirt spraying power, a PMDC motor is the only way to go.

Sometimes you can find 1500-2000 watt motors on ebay for a decent price. Search "scooter motor".