Fuel cap request

[Kram]

I have been asked to print a replacement fuel cap, however as yet I am incapable of designing any complicated parts or threads.
Would anyone be able to help with it? Specifically a female threaded cylinder, would allow me to do the rest although if you can do the whole part, thats great too.
I might add a slight undercut at the top to retain a flat tpu sealing disc. I'll print it in petg.

Appears to be a 6mm pitch bottle profile thread, 61mm OD

25mm deep. Not the best tape measure but I make it 6mm pitch.

Who knows? I asked for some better measurements..

I make that 61mm OD

I think this one, 65mm, is the bottom lip and can be ignored.

ID, 52mm, dont think its needed..

Half pitch.. I make that 3mm, so 6mm pitch.

Anyway I believe its for an old TW wood chipper, they are no longer available for this design and the modern ones dont fit.

Thanks

 

[8ob]

IBC thread?Link

Bob

 

[Kram]

May be too small? Looks like 61mm OD

 

[julianf]

I reckon id go with the thread bob is on about before trying anything else. It's close enough to your measurements that it may well just be variation in measuring.

The cap above is the same as the ibc ones. They're so common that it also points towards the one you have probably being the same.

 

[Kram]

Is the pitch on the IBC the same, 6mm? Looks coarser in your pic.

I'll suggest it to him.

 

[julianf]

Is the pitch on the IBC the same, 6mm?

I'll suggest it to him.

It's been a long time since I've done it, but I'm almost certain that the caps off standard 25ltr containers (like the one I photographed) also fit ibcs.

For the sake of calling by the local carwash place (etc) and scrounging one up, it's got to be worth a go, I reckon?

 

[knighty]

It's been a long time since I've done it, but I'm almost certain that the caps off standard 25ltr containers (like the one I photographed) also fit ibcs.

For the sake of calling by the local carwash place (etc) and scrounging one up, it's got to be worth a go, I reckon?

yes, they're the same

it's a standard 25litre drum cap


if it needs printing, I'm sure someone better than me will be along soon... my approach to threads is trial and error :-o


if you use onshape, I can send you a link to a cap I've made for something else, and you'd just have to dial the numbers in a bit to make it fit

 

[JOEPRO]

I have a couple spare 25L jar lids if it helps can post

 

[Blobber]

It's been a long time since I've done it, but I'm almost certain that the caps off standard 25ltr containers (like the one I photographed) also fit ibcs.

For the sake of calling by the local carwash place (etc) and scrounging one up, it's got to be worth a go, I reckon?

Not all 25ltr drums are the same, I have engine oil and antifreeze in 25ltr drums which use different caps