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Cottonwood
Roadster#433, Model S#S37
Be very careful about operating the UMC or HPWC cable in too tight a bundle. Tesla uses a noticeably smaller wire in both units than the NEC requires (about half the copper). As most have probably noticed, when operating these units at max current (40A for UMC, 80A for HPWC), even if there are not hot spots in connectors, etc, the wire gets warm to the touch. That is in an open environment with good air circulation.
If you wind the cable into a tight bundle during operation, the heat generated gets multiplied by the multiple passes of the cable, and the outside surface area only goes up a little. More heat with only a little more dissipation means higher temperatures in the cable. A few loose loops over the holder is probably OK, but I would worry about operation with even a fraction of that tight, neat bundle of UMC cable still on the wall.
Sometimes a disorganized mess of cable can be cooler and safer. :wink:
Thanks for pointing that out. Actually, the cable has never been uncoiled since taking it out of the bag. Still waiting on an overdue S85 so I have something to plug it into.
Cottonwood
Roadster#433, Model S#S37
As they say, a picture is worth a thousand words. Here is a picture of the UMC and cable plugged into a #6 RV, 14-50 extension cord. Notice the size difference, and you don't have to pick up the picture!
After operating for 15 minutes at 40 Amps, the UMC cable was noticeably warm, but the #6, RV cable was cool to the touch.
After operating for 15 minutes at 40 Amps, the UMC cable was noticeably warm, but the #6, RV cable was cool to the touch.
Normally I wouldn't hijack a thread.....but since you asked.:wink: Can't wait to have my Tesla in the mix.....any day now!
And yes the Vette is a 67 as opposed to the Split Window. The Nomad in the distance was Jill's SUV that we purchased from Tim Allen.
Well, I was going to say I liked the wainscoting on the wall, but that's taken a back seat to the rest of the garage. Very nice!
Presumably not the one that he dropped the I-beam on! :smile:
JPP
Active Member
...incredible.....(wiping drool off of chin).
Have you been featured in Griot's Garage catalog yet (...I see the racks/bottles in the distance)?
JPP
Active Member
Ultimaker 3D printed Mennekes plug holder
I've just finished mounting this holder that was 3D printed on my Ultimaker (it was a quick rough print to test the fit, but it worked perfectly so I just mounted it).
If you have a 3D printer, the files are shared on YouMagine if you want to print one for yourself:
https://www.youmagine.com/designs/wall-mount-for-mennekes-ev-plug
This wall mount is for the vehicle-side Mennekes plug (compatible with most EU versions of the Model S/X). Mounting instructions and other info is there, too.
I wanted to keep the UMC in my car, so I'm always ready to go with a simple unplug. That's why I've built an OpenESVE based charger (inside the meter closet) with a cable fixed to the wall on my driveway. It's three-phase power and connected as per Widoh's excellent instructions (my OpenESVE switches a 4 pole relay).
I was never really happy with the cable just hanging from the wall (I had a bracket for that), but I wanted a better and more elegant way to shield it from the elements, so I designed it. You can also order a print through 3DHubs, a distributed network of 3D printers used. To get a reliable print I recommend selecting a hub that has an Ultimaker Original or Ultimaker 2 (disclaimer: Ultimaker is my company, and it's why I get to drive the Model S).
FYI: just about to go on a holiday, so not much time to answer questions a.t.m.
I've just finished mounting this holder that was 3D printed on my Ultimaker (it was a quick rough print to test the fit, but it worked perfectly so I just mounted it).
If you have a 3D printer, the files are shared on YouMagine if you want to print one for yourself:
https://www.youmagine.com/designs/wall-mount-for-mennekes-ev-plug
This wall mount is for the vehicle-side Mennekes plug (compatible with most EU versions of the Model S/X). Mounting instructions and other info is there, too.
I wanted to keep the UMC in my car, so I'm always ready to go with a simple unplug. That's why I've built an OpenESVE based charger (inside the meter closet) with a cable fixed to the wall on my driveway. It's three-phase power and connected as per Widoh's excellent instructions (my OpenESVE switches a 4 pole relay).
I was never really happy with the cable just hanging from the wall (I had a bracket for that), but I wanted a better and more elegant way to shield it from the elements, so I designed it. You can also order a print through 3DHubs, a distributed network of 3D printers used. To get a reliable print I recommend selecting a hub that has an Ultimaker Original or Ultimaker 2 (disclaimer: Ultimaker is my company, and it's why I get to drive the Model S).
FYI: just about to go on a holiday, so not much time to answer questions a.t.m.
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Newscutter
Member
I actually referenced this thread on a blog post I made-- the 3D printed UMC holder is really clever but came too late for me.
My solution involved a lot of stumbling around my workshop and looking in boxes for inspiration. Luckily I found some!
Here's what I did-- super cheap, super easy.
My solution involved a lot of stumbling around my workshop and looking in boxes for inspiration. Luckily I found some!
Here's what I did-- super cheap, super easy.
Last edited by a moderator:
gglockner
Member
I'm struggling with this. In my garage, the UMC is adjacent to an exposed concrete wall, so I'd prefer not to drill holes into the concrete. I tried Velcro Industrial Strength Extreme: it adhered perfectly to the concrete wall, but not to the back of the UMC. I suspect that was due to the rubberized surface of the UMC. Other suggestions?
KenN
Member
Yep, I tried sticking the velcro to the rubberized part and had the same problem. Ended up sticking it to the plastic where there us no rubber.
Yes, I epoxied the Velcro to the UMC to overcome this. I use Velcro in my RC planes and it's just second nature to use epoxy on the batteries to make a permanent bond.
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