kimboviper
10 W
- Joined
- Oct 28, 2014
- Messages
- 97
Hdhdjd
lordvoltron said:I recently picked up an e-go. It averages 11.5 mph on flat streets with full battery, and struggles to make it up freeway overpasses.
Even with those limitations I think it will please a lot of people for general use. I plan on using it for commuting in a city with very few hills, mountain view. I just wish it was a tad faster, even if that means losing what feeble torque the board has now. I don't mind pushing to get cruising.
I have also done a teardown and figured out a few possibilities for increasing the top speed. I'll put together a detailed writeup in January when I get back from vacation, as nobody has posted detailed pics of the e-go components yet, but I'll give a few details.
The timing pulleys are 13 and 35 teeth, with a 230-5M-15 (46 tooth) gates belt. The motor is connected to the ESC with a strange 9 pin connector that I cannot find anywhere online. I think it must be sensored, because of the extra pins present.
Anyway, the easiest thing to do seems to be adding a smaller wheel cog / bigger wheel size. I ordered the 107mm abec 11 electric flywheels and the evolve boards drive wheel (33 tooth i believe). I also got a 45 tooth belt, as that should fit better with the smaller wheel pulley. I'm hoping not to have to modify the motor mount, but I will do it if necessary for tensioning. I also recognize that some of the plastic motor housing will have to be filed away to accommodate the larger wheels, but that will be easy.
If the modification goes as planned it should give me a small boost in speed to around 14 mph. I'll let you guys know how it goes.
I think the ideal way to modify this board would be to 3D print a smaller drive pulley for the wheel. It would have to be printed, because the inside of the pulley must be hollow. A 27 tooth drive wheel would bump you up to around 16mph.
lordvoltron said:I recently picked up an e-go. It averages 11.5 mph on flat streets with full battery, and struggles to make it up freeway overpasses.
Even with those limitations I think it will please a lot of people for general use. I plan on using it for commuting in a city with very few hills, mountain view. I just wish it was a tad faster, even if that means losing what feeble torque the board has now. I don't mind pushing to get cruising.
I have also done a teardown and figured out a few possibilities for increasing the top speed. I'll put together a detailed writeup in January when I get back from vacation, as nobody has posted detailed pics of the e-go components yet, but I'll give a few details.
The timing pulleys are 13 and 35 teeth, with a 230-5M-15 (46 tooth) gates belt. The motor is connected to the ESC with a strange 9 pin connector that I cannot find anywhere online. I think it must be sensored, because of the extra pins present.
Anyway, the easiest thing to do seems to be adding a smaller wheel cog / bigger wheel size. I ordered the 107mm abec 11 electric flywheels and the evolve boards drive wheel (33 tooth i believe). I also got a 45 tooth belt, as that should fit better with the smaller wheel pulley. I'm hoping not to have to modify the motor mount, but I will do it if necessary for tensioning. I also recognize that some of the plastic motor housing will have to be filed away to accommodate the larger wheels, but that will be easy.
If the modification goes as planned it should give me a small boost in speed to around 14 mph. I'll let you guys know how it goes.
I think the ideal way to modify this board would be to 3D print a smaller drive pulley for the wheel. It would have to be printed, because the inside of the pulley must be hollow. A 27 tooth drive wheel would bump you up to around 16mph.
beto_pty said:You comment on low power up over passes raises the issue that your current speed is perhaps a fucntion of available torque.. maybe the sensors are just to allow for standstill startups (which I feel look really goofy but that is maybe just me)
If the board lacks the torque to go up overpasses with the current gearing it will not be able to sustain the added torque of higher gearings..
IN my experience max speed is a funtion of gearing vs. the max speed/torque the motor can apply... hence upping the gearing relation might overamp your motor, or the motor might just find the speed/torque spot on its curve where it feels comfortable...at a lower rpm of course...
With exactly the same gearings, easc, wheels, batts my tacon 245kv goes faster than my 270kv ntm (at my weight of 200lbs) . when the rider is my friend who weighs in at 147 lbs the ntm goes faster than the tacon....
JJ2525 said:I just ordered another E-Go off Fry's website for $449, no tax and no shipping.
http://www.frys.com/product/8336037?site=sr:SEARCH:MAIN_RSLT_PG
A little bit nervous, but Fry's is reputable I believe (not terribly familiar with the store despite having lived in CA). Hard to say no to $449 for a board this well-received by consumers.
JJ2525 said:I just ordered another E-Go off Fry's website for $449, no tax and no shipping.
http://www.frys.com/product/8336037?site=sr:SEARCH:MAIN_RSLT_PG
A little bit nervous, but Fry's is reputable I believe (not terribly familiar with the store despite having lived in CA). Hard to say no to $449 for a board this well-received by consumers.
tung256 said:JJ2525 said:I just ordered another E-Go off Fry's website for $449, no tax and no shipping.
http://www.frys.com/product/8336037?site=sr:SEARCH:MAIN_RSLT_PG
A little bit nervous, but Fry's is reputable I believe (not terribly familiar with the store despite having lived in CA). Hard to say no to $449 for a board this well-received by consumers.
did you get the item? definitely not a price mistake cause the price is still there as of now.
JJ2525 said:tung256 said:JJ2525 said:I just ordered another E-Go off Fry's website for $449, no tax and no shipping.
http://www.frys.com/product/8336037?site=sr:SEARCH:MAIN_RSLT_PG
A little bit nervous, but Fry's is reputable I believe (not terribly familiar with the store despite having lived in CA). Hard to say no to $449 for a board this well-received by consumers.
did you get the item? definitely not a price mistake cause the price is still there as of now.
No, and just about the worst order experience I've ever had. After being on the phone with them for hours multiple times, I am now waiting 1-2 weeks for a refund.