leaftye
(leaftye)
February 14, 2018, 6:49pm
16
Where is the pocket clip?
I can’t wait to see this. I’ve wanted to do a build like this for a long time, but didn’t have the resources. It’s good to see someone actually doing it.
That shouldn’t be a problem if the pump is after the radiators unless the radiators can’t provide adequate cooling.
Pöbel
(Pöbel)
February 14, 2018, 6:57pm
18
the water temps in such a loop don’t differ much before and after the rads because of the high flow rate. Single digit K at max.
It’s a common misconception that you get “cold” and “hot” parts in the loop.
The bigger the difference between coolant and ambient, the more heat can be removed by the rads, but this is limited by the pump he chose
contigo
(contigo)
February 14, 2018, 10:27pm
19
You gonna track Elons Roadster with it?
Enderman
(Enderman)
February 15, 2018, 12:24am
20
Nah, I calculated that myself over a year ago
Hey, I'm wondering if anyone knows what the brightest LED is, I might be interested in making a single-led floodlight in the future.
So far the best I've found is the Luminus CXM-32:Gen 3 at 19675 lm.
Second best is the Cree XLamp CXB3590 at 18k lm.
I checked Nichia and found some slightly smaller LEDs with about 11k lm.
I don't want one of those cheap chinese square LEDs that advertise 100W or whatever and then end up having a bunch of the inner dies not working (picture for reference), …
When you drive it at 2x the base spec you get the 500W 70k lumens.
Still really good efficiency, over 100lm/w, assuming it is cooled properly.
Temperature difference before and after a radiator is a fraction of a degree, unless you have a really weak pump and low flow rate.
Subbed. I gotta see what you do with thoes CXA’s! o.O
Over 100 volts could be an issue though
RattleSnake
(RattleSnake)
February 15, 2018, 10:01am
24
Maybe send some morse code.
RattleSnake
(RattleSnake)
February 15, 2018, 10:09am
25
Its an EK pump that cost me AUD $120ish so the quality is there.
Pöbel
(Pöbel)
February 15, 2018, 10:15am
26
I know, I’m using the same pump. Maximum coolant temperature is specified at 50°.
1500W with 2x 280 rads will exceed 50° coolant temperature. If you only use it for short(ish) bursts and do not let the coolant reach maximum temperature you might be ok.
Adding a coolant temperature sensor + display (these are available for under 20:money_mouth_face: might be a relatively easy fix, so you can switch off or reduce power when it aproaches critical temps.
RattleSnake
(RattleSnake)
February 15, 2018, 10:20am
27
Rear panel and front panel cut, front led positions marked out.
Chassis and fan holes cut.
Front view showing the “Water Block” in position.
Chassis “Finished”
Frame getting painted. Metal etch primer all over then Epoxy enamel for the inside and truck bed liner for the outside.
RattleSnake:
Cones are hollow.
Weird!
Maybe they are only supposed to block one’s direct view of the emitter?
Turby3Pots
(Turby3Pots)
February 15, 2018, 4:02pm
31
yep i’ll subscribe to this
thijsco19
(thijsco19)
February 15, 2018, 5:57pm
32
What’s the reason for a maximum allowed pump temperature?
What will damage with a too high temperature?
RobertB
(RobertB)
February 15, 2018, 6:52pm
34
No Martin, you can’t sell it… lol
Firelight2
(Firelight2)
February 15, 2018, 7:04pm
35
Where’s the lanyard attachment ring for EDC? :smiling_imp:
Awesome job!!!