migueralliart
10 kW
Ok as promised...
this DIY is more oriented for people that want a simple handlebar mounted voltmeter to monitor their battery pack voltage. You can follow the same steps I guess to mount one of the more robust meters that have amps and watts.
Anyway here we go
What you'll need:
1- A simple voltmeter such as the one described in this thread - BTW thanks dogman for the reference!
http://endless-sphere.com/forums/viewtopic.php?f=14&t=40616
Link - 6.53$ from ebay takes almost a month to get to you but patience is a virtue
http://www.ebay.com/itm/170846310527?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
2- A project enclosure box. It has to be ~1" deep and the other dimensions larger than 2"x1"
Radioshack has one enclosure for 3"x2"x1" for 2.99$
Link - http://www.radioshack.com/product/index.jsp?productId=2062279
I got 4 really small ones for 16$ for my bikes from a website I can't recall the name but I'll provide the link later.
3- Cheap Rotary tool with disc and drill bits. This can be the cheapest one since you are cutting ABS. I got mine from harbor freight from 7$ with a coupon if you have one you save that cash.
4- Tie wraps - your choice of course. If you don't have any then shame on you. Every ebiker should have these.
5- A piece of rubber for your handlebar.
Now the first step is to make sure your voltmeter works! Just connect the main leads to any battery that has a voltage of 15-120V.
Now measure the cutout. To do this just take a ruler and measure the CUTOUT not the overall exterior dimensions of the face but the CUTOUT.
Cut that into one of the sides only and make sure you can fit the voltmeter inside and take it out.
Then drill 2 holes in the opposite face that does not have the meter part. Also drill a hole near one of the corners where you want the 2 leads to exit.
Now it time to put it together and attach it to the handlebar.
Pass a zip tie thru the bottom holes and the main leads thru the corner hole.
Put the rubber piece in the handlebar where you want the voltmeter to be mounted
The next step is just to tie the wrap around the handlebar
Well I hope this helps you out I might go into further details on how to connect this but its only 2 leads you can figure that one out. I made this simple one and the bigger one will have a switch and a buzzer as a voltage alarm. I will also add an overlay sticker to the face cause I scratched it a bit and It will probably look better with a carbon fiber finish!
this DIY is more oriented for people that want a simple handlebar mounted voltmeter to monitor their battery pack voltage. You can follow the same steps I guess to mount one of the more robust meters that have amps and watts.
Anyway here we go
What you'll need:
1- A simple voltmeter such as the one described in this thread - BTW thanks dogman for the reference!
http://endless-sphere.com/forums/viewtopic.php?f=14&t=40616
Link - 6.53$ from ebay takes almost a month to get to you but patience is a virtue
http://www.ebay.com/itm/170846310527?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
2- A project enclosure box. It has to be ~1" deep and the other dimensions larger than 2"x1"
Radioshack has one enclosure for 3"x2"x1" for 2.99$
Link - http://www.radioshack.com/product/index.jsp?productId=2062279
I got 4 really small ones for 16$ for my bikes from a website I can't recall the name but I'll provide the link later.
3- Cheap Rotary tool with disc and drill bits. This can be the cheapest one since you are cutting ABS. I got mine from harbor freight from 7$ with a coupon if you have one you save that cash.
4- Tie wraps - your choice of course. If you don't have any then shame on you. Every ebiker should have these.
5- A piece of rubber for your handlebar.
Now the first step is to make sure your voltmeter works! Just connect the main leads to any battery that has a voltage of 15-120V.
Now measure the cutout. To do this just take a ruler and measure the CUTOUT not the overall exterior dimensions of the face but the CUTOUT.
Cut that into one of the sides only and make sure you can fit the voltmeter inside and take it out.
Then drill 2 holes in the opposite face that does not have the meter part. Also drill a hole near one of the corners where you want the 2 leads to exit.
Now it time to put it together and attach it to the handlebar.
Pass a zip tie thru the bottom holes and the main leads thru the corner hole.
Put the rubber piece in the handlebar where you want the voltmeter to be mounted
The next step is just to tie the wrap around the handlebar
Well I hope this helps you out I might go into further details on how to connect this but its only 2 leads you can figure that one out. I made this simple one and the bigger one will have a switch and a buzzer as a voltage alarm. I will also add an overlay sticker to the face cause I scratched it a bit and It will probably look better with a carbon fiber finish!
