- #1
marcophys
- 152
- 20
I like the new software... the email feed was a good idea, and it coincided with an interesting problem I've come up with, that I thought I'd share:
A copper pipe:
14mm OD, 12mm ID, 45mm in length,
with a 2mm thick x 18mm OD shoulder.
The type that comes with a nut, for connecting to the bottom of a tap (often sold as a tap connector).
I'm thinking about baking a cement (at the shoulder end) to around 125deg C... think a 'bung' 5mm thick of cement.
I can't put it in the oven, because there is PVC sheathing at the other end.
The PVC can be pulled back from the copper tube... but it can't be removed entirely.
The shoulder is a bit of a bugger, because it stops me from just dropping the tube end into a close proximity circular resistance coil.
I could drop the end into a 19mm ID circular resistance coil... but the coil would be 2.5mm away from the tube I'm trying to heat.
Perhaps it could be a resistive cup... providing heat from the bottom (to the tube/cement face), and circular, around the tube diameter.
(Using a two part cement works, but clearly this is not an electrical engineering solution.)
I have in mind a scenario, where the tube is placed, and a button is pressed that triggers a timed dose of current, baking the cement.
Easy to say... but figuring it out is another matter.
:)
A copper pipe:
14mm OD, 12mm ID, 45mm in length,
with a 2mm thick x 18mm OD shoulder.
The type that comes with a nut, for connecting to the bottom of a tap (often sold as a tap connector).
I'm thinking about baking a cement (at the shoulder end) to around 125deg C... think a 'bung' 5mm thick of cement.
I can't put it in the oven, because there is PVC sheathing at the other end.
The PVC can be pulled back from the copper tube... but it can't be removed entirely.
The shoulder is a bit of a bugger, because it stops me from just dropping the tube end into a close proximity circular resistance coil.
I could drop the end into a 19mm ID circular resistance coil... but the coil would be 2.5mm away from the tube I'm trying to heat.
Perhaps it could be a resistive cup... providing heat from the bottom (to the tube/cement face), and circular, around the tube diameter.
(Using a two part cement works, but clearly this is not an electrical engineering solution.)
I have in mind a scenario, where the tube is placed, and a button is pressed that triggers a timed dose of current, baking the cement.
Easy to say... but figuring it out is another matter.
:)