3d printed water fill adaptor

LittleBill wrote:
No, its not a normal thread, and i struggle with threading still.

its an offset angle plane, using lines and 3 point arches.

I read this this morning and thought it couldn't be that difficult. So I read up on fusion sweeps and threads and yep, this would be that difficult. You can do custom cuts but didn't find examples of extruding a custom sweep profile on a surface. SO, you do what you have to do, and you did. You did a great work-around.

It took me about 20 minutes to create the below. A pitch of 8 TPI traveling 0.1875in vertically created a 67.5 degree tab. I created an identical sweep 180 degrees from the first. Just thought I'd share

LittleBill wrote:
This is the revised version, more grab points and rounded edges a bit.

this will be what is mailed out.

Sorry if I missed it but is there a link someplace to order one of these?

JimBollman wrote:
I have tried to talk myself into a 3D printer for a few years now but so far have resisted. I have enjoyed the design process and discussion.

I have used the same simple filler adapter for years it has lasted at least the last 4 campers. $6 on Amazon.

I don't even use that, just put the end of the garden hose into the hole. goes in about an inch, then gently turn on the hose till it is going pretty good. never had it blow out yet. but I do think I'll print one of these adapters .

Steve

This is the revised version, more grab points and rounded edges a bit.

this will be what is mailed out.

2112 wrote:
Hey, looks good. Did you use a helical revolve for the ramp?

How did it print?

Now you can take a moment to reflect on all you learned

No, its not a normal thread, and i struggle with threading still.

its an offset angle plane, using lines and 3 point arches.

I could not find a specific place to put the holes. googling showed this thing installed in about 50 different orientations, so it is what it is.

printed fine, supports are a bit terrible on petg, I have issues using tree supports, on my next print going to use standard supports to see if it will clean it up a bit better.

that said all the important sections printed perfect, and there is over a inch of rotation to lock it in, video below.

I have to add ribbing to the top, and some more fillets, but it seems fine. I will mail one out shortly to one gentlemen, see if there is any issues but should be good. hopefully there isn't much variance between fillers.


FOLKS YOU NEED TO SUPPORT YOUR HOSE'S USING THIS. I printed this literally at 100% strength for the ramp. You do risk breaking the water fill side, if extreme weight is placed on it. It was designed for a cap, not a hose. I take no responsibility if it breaks your water fill. I made the ramp 2x larger then the cap to spread out pressure, but there are still limits.

strongly recommended a swivel adapter of sort, so the hose doesn't cause a twisting action on the adapter.


My fill adapter on my rv is broken, this is why it moves, the fitting does not move at all once connected..
Video of it connecting

Hey, looks good. Did you use a helical revolve for the ramp?

How did it print?

Now you can take a moment to reflect on all you learned

well its done, prolly one of the most annoying things I have designed in a while.

8 attempts on that ramp. one is printing now. Jim... I hate you... does it not blow out when its filled?

I have tried to talk myself into a 3D printer for a few years now but so far have resisted. I have enjoyed the design process and discussion.

I have used the same simple filler adapter for years it has lasted at least the last 4 campers. $6 on Amazon.

Yes, the one on the right looks like the cap that screws on the filler.

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