I've finally done it
I've made my sphere tester
A job that's been waiting in the wings now for about two years.
Just a lash-up at the moment to ensure it works and it does, nicely and tested against a known sphere...
Made from a pump and pressure regulator from an early "Sinker" Xantia and using mainly the pipes from same. The pipe from pump to regulator was far too long so I carefully coiled it around the LHM "reservoir" which serves to hold it in place...
The hardest bit was the gauge connection to a stub of 4.5mm pipe. I used a nut from an 8mm compression fitting that fitted the thread on the gauge and had to turn up a reducing feurrle from brass in the lathe. The feurrrle was then brazed to the pipe.
Originally I hoped a nut from a diesel injection pipe would do for the gauge connection but sadly it turned out slightly too small.. If that had worked, it would have saved a lot of work.
Here's a couple of shots of it. They're a bit dark for some reason
No leaks, it's been holding at 38bars now for a couple of hours... A test of my brazing skills if nothing else...
Next job is to properly fit it all to a baseboard and framework. For now it's sitting on the very end of my bench and fully functional. I have a feeling that is where it may stay for some time
Can I expect a visit from you with an armful of spheres in the near future Xac?
I'll get the kettle on