SAE J1772 inlet port Dimensions

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dzd

Active member
Joined
Dec 10, 2012
Messages
33
Does anyone have any info on where I can get a schematic with the dimensions for the port end of the j1772 plug. I want to design a 3d printable wall mountable port to plug my EVSE in when not in use.
Thanks
 
I couldn't find a a side view, but these might help.

Not perfect but here's one drawing:


And here's more detail: http://www.fveaa.org/fb/FCI_Power-S3-SAE-J1772-Charge-plug-2010-06_276.pdf" onclick="window.open(this.href);return false;
 
I have the same idea. Earlier today, I searched the Autodesk 123D gallery for similar design, but found nothing.

The free 123D software is so fun and easy to use, you will have it done in no time. Might be nice to add a momentary switch to sense the J plug being docked (in case of future OpenEVSE functionality).

Did you find out what a local fabricator might charge once you finalize your design?
 
borland said:
I have the same idea. Earlier today, I searched the Autodesk 123D gallery for similar design, but found nothing.

The free 123D software is so fun and easy to use, you will have it done in no time. Might be nice to add a momentary switch to sense the J plug being docked (in case of future OpenEVSE functionality).

Did you find out what a local fabricator might charge once you finalize your design?

I found the auto desk free software to be problematic. It doesn't tend to work if their predefined shapes don't fit together. I really wish pro engineer had a free version. That software is really nice. I'll continue to try the free stuff.

Thanks for the drawing good find. I'll have to also take some measurements to get the top latch right.
 
Here's my draft part using Autodesk's 123D Design software. Program is not stable, so you need to save your work frequently.

fd9fm0.jpg


vdqbm.jpg


1oufqb.jpg


Don't know what it would cost to print.
 
Nice work.
The cost depends upon the type and amount of material used in the part.

Perhaps make thinner walls, and add gussets at stress points.
Complexity is not very important, so things like a thin wall
with ribs for strength can save money.

One of our members used http://www.shapeways.com" onclick="window.open(this.href);return false; recently
to make the "cage" (enclosure) for his CANary project.
Subject: The CANary project
 
The poor man's version uses these PVC fittings:
(of course, you wanted much nicer)

A Cap (or floor flange) that can be screwed to the wall,
a Short piece of pipe to connect to the elbow,
a 45 degree elbow, possibly with another short
piece for pipe... all sized to "fit" the J1772 plug.
 
How big is it? I might give it a go in my printer just for laughs.

Though I don't have any connector to test fit with.
=Smidge=
 
Smidgen,
Where are you located?
It is most likely that we could arrange for a test fitting.

I would check the clearances before printing, to make
sure that any surface "roughness" (variations) will
not interfere with the fit of the J1772 plug.

What kind of 3D printer do you have available?

What material do you use with it?
 
Smidge204 said:
How big is it? I might give it a go in my printer just for laughs.

Though I don't have any connector to test fit with.
=Smidge=

It's actually smaller than it appears in the sketch.

base is: 70 mm x 65 mm x 5 mm thick
tube is: 5 mm thick x 50 mm O.D.
overall height is: 70 mm

PM me if you want the STL file. Dimensionally, it is correct, but I'd need to do some additional QC checks before releasing the file.
 
garygid said:
Smidgen,
Where are you located?
It is most likely that we could arrange for a test fitting.

I would check the clearances before printing, to make
sure that any surface "roughness" (variations) will
not interfere with the fit of the J1772 plug.

What kind of 3D printer do you have available?

What material do you use with it?

Long Island, NY

I use a FDM type printer running PLA (poly-lactic acid). It's a biodegradable plastic with a low glass temperature (~60C/140F) not terribly suited for hot things :) Not sure how it's survive being exposed to the elements but it makes for some nice mechanical bits.

Here's an up-close picture of what the finished print surface looks like. By default I print with 0.25mm layers so that's the height of the ridged you see there... I don't think that kind of roughness will be a problem.
=Smidge=
 
The deed is done :ugeek:

[youtube]http://www.youtube.com/watch?v=H3vQ_chaeZs[/youtube]

Tomorrow afternoon it'll be on its way across the countryside.
=Smidge=
 
I made this before I even got my Leaf in 2011. Have been using it ever since. Got one request to make one from England (of all places).


Photo0189.jpg


Photo0191.jpg
 
nice job Borland!!! if the fit is good would you make the file available or put it on file with shapeways so we can all partake?
 
dzd said:
nice job Borland!!! if the fit is good would you make the file available or put it on file with shapeways so we can all partake?

Looks like Smidge did a great job on printing the part. The short video is is very impressive too.

As soon as the part arrives, I'll post a photo showing the fitup with my J-plug.

Smidge makes it look much easier than it is to print. The drawing can be dimensionally correct, but depending on how well the 3D printer is calibrated, the part can come out a different size. There are other printing factors that affect sizing too.

Smidge said that his printing software estimated the cost of PLA filament to be $2. I'm not sure what Shapeways charges for a part this size or how accurate their printers are. Something I need to inquire about (cost and quality).

If this part is going to be widely made, I'd like to add a freeze protection cover above the latch so the part could be used outdoors.
 
Thank you Smidge204!

The part arrived in the mail today. Looks great. Fitup with the J-plug is good; plug snaps in place with no interferences. The screw hole sizes and screwdriver access are good also.

Here's some photos showing fitup with my J1772 plug (manufactured by ITT)....you can see that the part was printed with honeycomb infill...

289l79w.jpg


3343zwg.jpg


If mounted to a wall, the J-plug handle points straight down.

2a5i26o.jpg


2qd7mts.jpg


You can see in this photo, it's not a tight fit. Printing tolerances make this difficult to size precisely.

se37n4.jpg


My J1772 has a foam gasket seal around the outside of the plug. When connected with the part, the gasket is barely compressed. Not sure if other J-plug have this feature.

Haven't done any destructive testing, but the part looks to be strong enough. Only design change I'd make, is to shorten the tube by a few milimeters.
 
borland said:
Haven't done any destructive testing, but the part looks to be strong enough. Only design change I'd make, is to shorten the tube by a few milimeters.

I'd put a gusset underneath the assembly and lower the two bottom mounting bolts a few inches.
 
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