__mike
100 mW
Hi Guys, been lurking here for the past few years and have been amazed at the engineering skills and wealth of information here from forum members. Truly inspiring. So last year I attempted by first build as follows:
2011 ds Giant Reign 1
Em3ev upgrade Mac 10t / Alex Dx32/ Sapim Spokes /10speed freewheel
9fet 3077 controller
2s1P Zippy 6s 8000mah 30c Lipo housed in angled aluminium
CA V3 set at 1500 Battery Watts / Power throttle mode / motor wont kick in to 5kmhr to help clutch life / 80degree thermal cut
Grin tech torque arms - one each side.
Setup is impressive and a nice and light set up of 22kg,Top speed 40km/hr. I have a dirt bike / RC / road cycling/lycra brigade background and the bike is used for a hoot off road around my local area, used purely for fun.
Maybe I should have opted for the 8T as recently I found myself wanted just a little more top end power and speed - Don't we all - but the low down surge is nice with the 10T. So $400 of lipos later i've swapped out the 6s lipos (only 25 shallow cycles old / charged to 4.1v - will look at selling these once current set up is sorted for cheap) for a 2s2p Zippy 35c 3300mahr - 16s pack. I reconfigured the CA for the new lipo and adjusted max power to 1700w /30A. Throttle mode is set for Power but i've tried Pass - thru and Current and the acceleration was a tad smoother. The problem im having is stuttering and hesitating during acceleration. Once up to speed power feels smooth -top speed 50km/hr. Happy for now
So more $$$$ later i've ordered a 4110 9Fet from Paul @ EM3ev after noticing this regarding the 3077 9Fet controller. Hope is leaves soon.
Specification:
9pcs of Genuine IRFB3077 Mosfets. Just about the best 75V TO-220 Mosfet available
63V Caps, Max input voltage is limited to 60V
36-50V operation, 60V max
30A Current Limit
2.5mm2 (Almost 13AWG) High Temperature Silicone wires used on Phase and Supply cables
Dimension: 155 * 85 * 45mm
Weight: 0.45kg
Paul seems to think the 4110 may not be the answer to my problem but confirms the hardware is limited to 60v. All cables/ hall sensors are plugged correctly. When the resting voltage is 58/59 volts the acceleration is smooth from down low so I thought the 3077 was the obvious problem / restricted to 60v. I'm a little worried now ive ordered a new controller for nothing? . Im purely after confirmation the 4110 should solve the problem and im just hitting the 60v cut out with the 3077. Tried searching with no luck but some running up to 18s with 3077. Lyen modified?
Also does anyone get continued bearing play on the freewheel size of the hub? Ive swapped out the bearing once already but the problem came back pretty quick. I think there should be 2 on that side, hopefully the new Mac motor solves this. Advice much appreciated
Mike
2011 ds Giant Reign 1
Em3ev upgrade Mac 10t / Alex Dx32/ Sapim Spokes /10speed freewheel
9fet 3077 controller
2s1P Zippy 6s 8000mah 30c Lipo housed in angled aluminium
CA V3 set at 1500 Battery Watts / Power throttle mode / motor wont kick in to 5kmhr to help clutch life / 80degree thermal cut
Grin tech torque arms - one each side.
Setup is impressive and a nice and light set up of 22kg,Top speed 40km/hr. I have a dirt bike / RC / road cycling/lycra brigade background and the bike is used for a hoot off road around my local area, used purely for fun.
Maybe I should have opted for the 8T as recently I found myself wanted just a little more top end power and speed - Don't we all - but the low down surge is nice with the 10T. So $400 of lipos later i've swapped out the 6s lipos (only 25 shallow cycles old / charged to 4.1v - will look at selling these once current set up is sorted for cheap) for a 2s2p Zippy 35c 3300mahr - 16s pack. I reconfigured the CA for the new lipo and adjusted max power to 1700w /30A. Throttle mode is set for Power but i've tried Pass - thru and Current and the acceleration was a tad smoother. The problem im having is stuttering and hesitating during acceleration. Once up to speed power feels smooth -top speed 50km/hr. Happy for now
So more $$$$ later i've ordered a 4110 9Fet from Paul @ EM3ev after noticing this regarding the 3077 9Fet controller. Hope is leaves soon.
Specification:
9pcs of Genuine IRFB3077 Mosfets. Just about the best 75V TO-220 Mosfet available
63V Caps, Max input voltage is limited to 60V
36-50V operation, 60V max
30A Current Limit
2.5mm2 (Almost 13AWG) High Temperature Silicone wires used on Phase and Supply cables
Dimension: 155 * 85 * 45mm
Weight: 0.45kg
Paul seems to think the 4110 may not be the answer to my problem but confirms the hardware is limited to 60v. All cables/ hall sensors are plugged correctly. When the resting voltage is 58/59 volts the acceleration is smooth from down low so I thought the 3077 was the obvious problem / restricted to 60v. I'm a little worried now ive ordered a new controller for nothing? . Im purely after confirmation the 4110 should solve the problem and im just hitting the 60v cut out with the 3077. Tried searching with no luck but some running up to 18s with 3077. Lyen modified?
Also does anyone get continued bearing play on the freewheel size of the hub? Ive swapped out the bearing once already but the problem came back pretty quick. I think there should be 2 on that side, hopefully the new Mac motor solves this. Advice much appreciated
Mike