Search found 98 matches

by burner1
Nov 17 2015 5:27pm
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

I am surprised it does as well as it does with the weight. It glides over rough terrain quite well but since the motor is not part of the rear suspension the percentage of un-sprung weight is small which helps. I did get a chance to check top speed and on level road it is 28mph in low gear. I am loo...
by burner1
Nov 17 2015 12:13pm
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

1500 was my guess Drew. It came out to 1640lbs.
by burner1
Nov 17 2015 7:37am
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

Think about this. 12 batteries at 60lbs each. Along with motor, trans, relays, that's about 800lbs all by itself. Frame is all heavy steel.

1640lbs
by burner1
Nov 16 2015 12:29pm
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

Any guess what it weighs? Hint, I have two 72v 6 battery banks. 12 batteries in total.


Image
by burner1
Nov 09 2015 4:03pm
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

Thanks Drew
by burner1
Nov 06 2015 9:33pm
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

A lot of people ask me range. What minimum voltage should I limit the batteries to? I am using these batteries:


http://www.batterystuff.com/batteries/u ... 45826.html
by burner1
Nov 06 2015 6:57pm
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

I will get a video when I can.

Gary
by burner1
Nov 06 2015 9:13am
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

Thanks Drew!
by burner1
Nov 05 2015 9:10pm
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

Just thinking about how it started. We skipped the design phase and went straight to construction!:


Image
by burner1
Nov 05 2015 9:08pm
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

I would not say it's done. The dash is not done as it is a platform for me to test different electronic systems. Besides some small things it is otherwise....DONE!....and I could not be happier! http://www.rc-tech.net/cars2/cush/Build/Done1.jpg http://www.rc-tech.net/cars2/cush/Build/Done2.jpg Reall...
by burner1
Nov 03 2015 8:47am
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

I have been parking on a hill at the shop. I needed to finish the parking brake. I was wondering how long before the cart rolled over the board and down the hill. I got the parking brake done last week and works great. Holds tight on steep hill with little clamping force: http://www.rc-tech.net/cars...
by burner1
Oct 25 2015 10:12am
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

Thank you
by burner1
Oct 25 2015 8:54am
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

Windshield is in. Still waiting bumper and bed. Trees looked good for some photos: http://www.rc-tech.net/cars2/cush/Build/Leaf1.jpg http://www.rc-tech.net/cars2/cush/Build/Leaf3.jpg Dog has to ride on it every time. Carpet covers right side and seat is quickly removable. What we won't do for our do...
by burner1
Oct 23 2015 3:05pm
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

Vibration was simple problem. Did not mount front transmission plate because it makes it harder to get it out. I look back during start and it was moving. I welded plate in position and vibration gone! One more thing done! Drove around at night last night. Driving lights are really good.......Light ...
by burner1
Oct 22 2015 11:19am
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

Finally got a bit of driving time with it. It seemed weak on take off. We used a cell phone GPS ap which showed it 25mph in low gear on flat road. I got into the controller with USB/Serial connection and reset some parameters on the controller. Now you can feel the front end come up if you get on it...
by burner1
Oct 15 2015 9:45pm
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

Learning to do new things is always the good part. Like they say the journey is the fun part. So much so the destination is often anti-climatic.
by burner1
Oct 14 2015 10:12am
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

Sorry took so long for me to respond. Lots of things going on. Your truck project looks pretty cool. I cannot say I know a lot about stick welding. I have done a little. With what the MIG is capable of I would have a hard time spending much time with the stick. Your dad's MIG might be worth spending...
by burner1
Oct 12 2015 3:42pm
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

I will look for the thread when I have a chance. This entire cart was welded with a 110v MIG. Most welding issues come down to simple things. Clean metal, basic technique, good gas, good visibility. If you can't see you can't weld. Some people get corrective lenses for the welder. I am near sided so...
by burner1
Oct 12 2015 2:06pm
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

Most people are quite capable of more then they know!
by burner1
Oct 12 2015 10:31am
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

BTW it has a nose only a mother could love!!
by burner1
Oct 12 2015 9:09am
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

No brakes but I took it for a short drive. Soon vibration showed I must have not gotten the clips in the U-joint. Low gear is a little weak on start on one set of batteries. When I bring in both it's better. Speed is no issue around the property in low gear. It will go faster on property then I need...
by burner1
Oct 04 2015 9:33am
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

After doing something stupid with the front suspension set up it was time to drop back and do it again right. I used rod-ends to mount the uprights to the a-arms. One thing I did not like was on my first a-arm build I welded to the rod ends. There was no way to take them off or repair them. The seco...
by burner1
Sep 29 2015 8:17am
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

I am slow with these things. I only get a chance to work on it here and there. It always seems like I need to order something. I got the motor drive system wired up and working. Power relay, reverse relays, motor controller, gas pedal, all hooked up and working well: http://www.rc-tech.net/cars2/cus...
by burner1
Aug 07 2015 9:25pm
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

A lot more work left then it appears but at least I can see what it looks like now; except for the bed.


Image
by burner1
Aug 03 2015 8:09am
Forum: Large EV General Discussion
Topic: Cushman based build
Replies: 122
Views: 23088

Re: Cushman based build

BTW just left of the 2 speed transmission in this shot, there is a trailer hitch tube mounted vertically. Harbor Freight has a jib crane and I am going to use this as a socket to drop it in or take it out.


Image