3d printed water fill adaptor

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I use my 3d printer to create accessories and replacement parts. I designed a water fill adaptor so that the water hose wont keep falling out as I fill the fresh water tank. If you have a 3d printer, you can download the needed files from Thingiverse and and make one for yourself.


https://www.thingiverse.com/thing:3406756

[LittleBill]

I finally got some time, and did a test piece, and it went on first try which i was impressed with, going to tweak it a bit if i can, after i print another test piece, if that goes well, should be done soon.


you can see the difference in the ramps. this is why most people are struggling

[LittleBill]

2112 wrote:
I don't know if you considered or implemented this but, the current design has four air holes 90 degrees from each other. When the tank fills water will come shooting out of those holes in every direction.

It may be a less aggressive and drier moment if you locate a single slot pointing in a downwards direction. Water will splash off the 90 degree elbow, if installed but it wouldn't be spraying all over whatever is next to the camper. The slot would need to be large enough to eliminate over pressurizing the tank.

Just a thought

I have, my concern and something i am not sure of, is if the slots that lock it into the rv are always going to be in the same location, depending on how the inlet port was installed.

[2112]

I don't know if you considered or implemented this but, the current design has four air holes 90 degrees from each other. When the tank fills water will come shooting out of those holes in every direction.

It may be a less aggressive and drier moment if you locate a single slot pointing in a downwards direction. Water will splash off the 90 degree elbow, if installed but it wouldn't be spraying all over whatever is next to the camper. The slot would need to be large enough to eliminate over pressurizing the tank.

Just a thought

[BarneyS]

Don't worry guys, you're good! This fits this forum very well and I am following with much interest.
Barney

[LittleBill]

2112 wrote:
We might want to move this elsewhere. We are dancing on the RV related edge. Don't want to upset the Mod.

3d printing itself is DYI, and we are literally designing a part for RV's. I'm not going anywhere....

[2112]

We might want to move this elsewhere. We are dancing on the RV related edge. Don't want to upset the Mod.

[2112]

LittleBill wrote:
your threading is clean, are you printing in PLA?

That's ABS 0.3 layers with a .4 E3D nozzle.

I printed 2 in PETG and 1 in ABS without supports. The only issue I had was the washer flat.

[LittleBill]

I will say I am a bit concerned about this adapter. people are really going to need to support the hose properly. those tabs are tiny, its designed to hold a cap on it, not a 50 pound garden hose.

[LittleBill]

your threading is clean, are you printing in PLA?

[LittleBill]

2112 wrote:
This is what I was saying should have more chamfer. The right image is a GHT profile I imported from McMaster-Carr. I created the left image from that profile. Notice I opened up the washer flat with a chamfer. The thingiverse part was 90 deg flat there. My printer air printed a few layers there before it caught up.



With the chamfer. It printed cleaner and the water will flow better.

I have the garden hose figured out, someone designed the thread for fusion, and it works after a bit of tweaking, I did design in the washer, and it does seem to dribble about 80psi into a cap, but maybe i redesign it without the washer.

printing air is hard if its not a bridge. that said I have now learned how to do the ramp, so i will see how that works out, once my printer finishs a print. this is prolly going to print better from the fill side. no way around supports, as you can't put an angle on the ramps, as thats the side it rides on.

this is a overlay of the original


this is it so far without the ramp

[2112]

This is what I was saying should have more chamfer. The right image is a GHT profile I imported from McMaster-Carr. I created the left image from that profile. Notice I opened up the washer flat with a chamfer. The thingiverse part was 90 deg flat there. My printer air printed a few layers there before it caught up.



With the chamfer. It printed cleaner and the water will flow better.

[2112]

When I said it will print better, I printed threaded end down on the build plate, no supports.

[2112]

LittleBill wrote:
the hose thread is also different then mine, hose thread doesn't have a taper and requires a washer, the original does not match hose thread at all.

Yea, I pointed that out to K & I. They had too much of a point as well, weakening it. Put a slight round on the tip to make it print better and for integrity.

No need for a washer. There won't be any pressure there, it's an open pipe. It would print better if you changed the washer flat to a chamfer.

[2112]

Creo was known as ProE until about 6 years ago or so. I've been using it for about 20 years so it's old hat to me. I used AutoCAD prior to that.

It's worth a look. You can get a free student license. You would be a mentor. You just need to renew the license once a year.

[LittleBill]

2112 wrote:
Glad you figured it out.

I've spent the last hour or so reading up on Fusion. Too much like Sketchup and TinkerCAD for me.

ThinkerCad is a joke compared to this, I spent less then 2 days on thinker before I moved on.

Fusion360 was recommended prolly 99% of the time on reddit for 3d print design, so that's what I went with. I never designed before, I also never heard of creo before either.