Search found 15 matches

by MotorboaterBen
May 17 2019 8:58am
Forum: Motor Technology
Topic: Complete re-design of a second-hand motor
Replies: 5
Views: 149

Re: Complete re-design of a second-hand motor

There are a few posts on here about the Neu 80xx series motor, specifically the 8057. I have tested the 8019, 8038, and 8057. They are pretty inexpensive and ideal IMO for "just getting some practice".
by MotorboaterBen
May 15 2019 12:29pm
Forum: Electric Watercraft
Topic: Help mee, esc for lampuga boost carbon jet surf
Replies: 3
Views: 163

Re: Help mee, esc for lampuga boost carbon jet surf

You might be better off moving to a more industrial converter like an emsiso emDrive 150 or inMotion ACS. They will be much more robust and handle the continuous current reliably.
by MotorboaterBen
May 15 2019 12:20pm
Forum: Electric Watercraft
Topic: How can I get more speed 12v 45lb thrust
Replies: 13
Views: 310

Re: How can I get more speed 12v 45lb thrust

If it's meant for a much heavier boat than the propeller likely has a low pitch (theoretical distance traveled forward for every revolution). So you are probably at max rpms for the 12V, but the motor likely has untapped torque. If you put a propeller on with a larger pitch, then I imagine you could...
by MotorboaterBen
Aug 30 2018 11:36am
Forum: Motor Technology
Topic: Emsiso emDrive 500 (100kVA Peak, 800A/120VDC)
Replies: 57
Views: 6485

Re: Emsiso emDrive 500 (100kVA Peak, 800A/120VDC)

Hey Adam,

What motor are you using?

I have used an emDrive to power a DHX Hawk40, and Neu 8057 using the following P/I gains:

Velocity:
P= 1250, I = 8, These are OK, stable but not great.
Torque:
P = 1500, I = 1500
by MotorboaterBen
May 02 2018 7:38am
Forum: Motor Technology
Topic: Emsiso emDrive 500 (100kVA Peak, 800A/120VDC)
Replies: 57
Views: 6485

Re: Emsiso emDrive 500 (100kW Peak, 800A/125VDC)

Hi Rovii, I found my issue! x3000 was set to 1 x3001 was set to 2 Running a sin/cos encoder. When operating in APP1 velocity mode, 6060 Mode of operation needs to be set to 10 (torque mode) instead of velocity mode (9). There is also a secondary velocity control loop (velocity regulator), that must ...
by MotorboaterBen
Apr 26 2018 5:33am
Forum: Motor Technology
Topic: Emsiso emDrive 500 (100kVA Peak, 800A/120VDC)
Replies: 57
Views: 6485

Re: Emsiso emDrive 500 (100kW Peak, 800A/125VDC)

Hey Rovii, I am having some successes and some issues with my controller, and was hoping you might be able to help. For my emDrive150 I was able to successfully operate the controller with a potentiometer in torque mode. However when trying to operate the controller in velocity mode, adjusting the p...
by MotorboaterBen
Apr 14 2018 6:48pm
Forum: Motor Technology
Topic: Emsiso emDrive 500 (100kVA Peak, 800A/120VDC)
Replies: 57
Views: 6485

Re: Emsiso emDrive 500 (100kW Peak, 800A/125VDC)

Awesome! Have you used any of the onboard data logging features?
by MotorboaterBen
Apr 05 2018 9:56pm
Forum: Electric Watercraft
Topic: ebike hub motor for marine propulsion
Replies: 15
Views: 3369

Re: ebike hub motor for marine propulsion

Here's a generic speed calculator I've used to determine prop pitch and RPM for a desired speed, might be of use.
https://www.offshoreelectrics.com/conversion.php
by MotorboaterBen
Apr 02 2018 5:55pm
Forum: Motor Technology
Topic: DA-90 motor
Replies: 18
Views: 1512

Re: DA-90 motor

It's hard to tell too much without a seeing a torque-rpm curve, but a few thoughts do trail. -At 10.5 kg, a peak power density of 2.4kW/kg isn't particularly impressive -Seeing that there isn't any active cooling, I don't imagine the continuous power output being anything over 10kW -For the price ho...
by MotorboaterBen
Apr 02 2018 5:43pm
Forum: Motor Technology
Topic: Neumotor 8057/75 middrive project, belt drive, adding halls, 10kW+
Replies: 129
Views: 15850

Re: Neumotor 8057/75 middrive project, belt drive, adding halls, 10kW+

Not running a boat with the 8019, but will probably through the 8057 on an outboard at some point for fun..... I did have Neu 4400 on a boat back in college that moved pretty quick: https://www.youtube.com/watch?v=QGvg7ujdlDo A little more detail on the encoder: 1. I used an RM44AC sin/cos analog en...
by MotorboaterBen
Mar 29 2018 9:17pm
Forum: Motor Technology
Topic: Neumotor 8057/75 middrive project, belt drive, adding halls, 10kW+
Replies: 129
Views: 15850

Re: Neumotor 8057/75 middrive project, belt drive, adding halls, 10kW+

Also testing out the Neu 80xx series motors here. I have an 8019 (pictured) paired with an Emsiso emDrive 150, and then an 8057-75 up next for testing. I outfitted the motors with an RLS RM44AC sin/cos encoder - super straightforward to do with a bored hole in the shaft for the magnetic actuator and...
by MotorboaterBen
Mar 29 2018 9:03pm
Forum: Electric Watercraft
Topic: 150cc turnighy outboard
Replies: 4
Views: 1475

Re: 150cc turnighy outboard

Lower kv and higher torque....unless you're using a surface-piercing prop on a hydro setup
by MotorboaterBen
Mar 29 2018 9:01pm
Forum: Electric Watercraft
Topic: Cracker Box for my daughter
Replies: 22
Views: 3143

Re: Cracker Box for my daughter

Looking good! I would say go epoxy, that's what I've used on any fiberglass/wood boat projects.

Had this wood/fiberglass hydro moving pretty quick: https://www.youtube.com/watch?v=QGvg7ujdlDo
by MotorboaterBen
Mar 08 2018 9:06pm
Forum: Motor Technology
Topic: Looking for help with sourcing speed controller with variable braking
Replies: 5
Views: 644

Re: Looking for help with sourcing speed controller with variable braking

emsiso emdrive150 is programmable and can do most if not all of that. -separate throttle and brake inputs -control via CAN, 0-5V analog, or PWM -controllable in speed or torque mode (so you can set a constant rpm and vary power to match varying loads) https://www.emdrive-mobility.com/copy-of-emdrive...
by MotorboaterBen
Mar 05 2018 9:15pm
Forum: Motor Technology
Topic: Emsiso emDrive 500 (100kVA Peak, 800A/120VDC)
Replies: 57
Views: 6485

Re: Emsiso emDrive 500 (100kW Peak, 800A/125VDC)

Hey Rovii,

Any updates on the programming process with the em500? I recently got an em150 and will be programming that quite soon.

Best,
Ben