Small 32mm Offsets

[MortarThePoint]

I know I can happily make any offsets I need above 60mm by using two 32mm solvent weld 135° (45°) Bends. But as you can see below, you can't go below 59mm. Are the only two ways to make a smaller offset that 60mm one of these two approaches:

1. heat bend a straight length of abs pipe filled with sand using a heat gun
2. use a length of flexible pipe

 

 

[ProDave]

Show the specific problem you are trying to solve with full dimensions.

[Onoff]

3D print in ABS. You could likely get away without any support if you kept all the angles above 45deg. Solvent weld should work on it. 

 

A little Y piece I did for my gate conduits.

 

https://flic.kr/p/2mmDsvX

[joe90]

3 hours ago, ProDave said:

Show the specific problem you are trying to solve with full dimensions.

+1, I have “bent” waste pipes with a heat gun in the past.

[MortarThePoint]

3 hours ago, ProDave said:

Show the specific problem you are trying to solve with full dimensions.

 

It's nothing special and had to get an angle that shows it clearer. The 32mm pipe on the right is above screed and the 40mm pipe on the left is below screed. To have a consistent drop (18mm / metre) that follows the left hand pipe requires a 24mm vertical offset. There are other places I am likely to need a small offset, so it's not just about this. I hoped someone might say Brand X sell a small S-bend offset part.

 

[ProDave]

I would just heat and bend the connecting bit of pipe for that.

 

Alternative off the ball idea.

 

50mm SW coupler.  

50mm to 32mm reducer  

Note the reducer is offset.

 

SW one in one way up, the other in the other way up.  That gives you a straight coupling with about 30mm offset.  

 

 

[joe90]

Just warm it up and bend it a little. 

[MortarThePoint]

20 hours ago, joe90 said:

Just warm it up and bend it a little. 

 

Here's how it ended up

 

I snaked it round some Hep2O so four bends in the end.

 

I heated the pipe more locally than I would have liked so I can see it's thinned a fair bit at a couple of the bends.

 

To squeeze the pipe section in it's ended up leaving the pipe quite taut. Hopefully that won't cause one of the joints to fail.

Edited June 30, 2024 by MortarThePoint

[MortarThePoint]

Not sure why I didn't spot this at the time, but you can use two 45 degree conversion bends to make a 42mm offset. You'd then need to use a straight coupler to connect to the pipe, but that's easy and doesn't affect the offset.

 

You could use a 45 degree conversion coupler and a standard 45 bend to get an intermediate offset as well.