Merriman's Submarine Modelling Masterclass

Some kind of air pump you fitted with a safety valve?
 
southwestforests said:
Based on past experiences trying similar, I would for sure break the struts AND spill blood attempting that! :oops:
Probably wise for me to stick to reaming shorter holes twisting a small file by hand. :)
Click to expand...
Most machined cutting burrs on round files have a pitch to them; most right-hand pitch. So, if you power drill such a round file into a bore it's going to dig in and either take a finger off as it jams up, or the work with be ruined... or both. That's why I use diamond/Carbid coated power reamers -- no propensity of the tool to drive itself into the work. However, If you're stuck with a pitched round file, with no alternative, just run the drill motor 'backward' to the thread direction. That will keep from digging the tool into the work as it rotates.
 

Attachments

  • IMG_0117.JPG
    IMG_0117.JPG
    938.3 KB · Views: 6
  • DSCF4652 - Copy.JPG
    DSCF4652 - Copy.JPG
    3.6 MB · Views: 7
merriman said:
That's why I use diamond/Carbid coated power reamers -- no propensity of the tool to drive itself into the work.
Click to expand...
Until your mention of reamers there, I'd forgotten I have a bead reamer which has a grained surface like that.

That's a thing with this neurological autoimmune disease, unless a tool, a book, a model kit, even household cleaning supplies, is out where I see it daily, there is a chance of forgetting it exists.

Do have a variable speed reversing drill, will look up diamond/Carbid coated power reamers.
 
southwestforests said:
Until your mention of reamers there, I'd forgotten I have a bead reamer which has a grained surface like that.

That's a thing with this neurological autoimmune disease, unless a tool, a book, a model kit, even household cleaning supplies, is out where I see it daily, there is a chance of forgetting it exists.

Do have a variable speed reversing drill, will look up diamond/Carbid coated power reamers.
Click to expand...
Just look up, 'small, jewelers files' on Amazon. https://www.amazon.com/KALIONE-Diam...=d2lkZ2V0TmFtZT1zcF9zZWFyY2hfdGhlbWF0aWM&th=1
 
That's a big sheet of photoetched brass parts! :eek:


Feels weird to see such a small WTC and such a big free-flooding area. I guess that's just models versus the real thing, though.
 
merriman said:
A little context: Jake and I were dishing in on a friend in Texas who recently lost his model submarine in the weeds. He's still looking for it!

[ MEDIA snipped for space ]
Click to expand...
Poor soul!

Maybe it's time to develop a working rescue buoy system?


And I think I need to make one of those glue storage blocks. I keep knocking over the Plastruct and accelerator bottles.
 
Scott Kenny said:
Poor soul!

Maybe it's time to develop a working rescue buoy system?


And I think I need to make one of those glue storage blocks. I keep knocking over the Plastruct and accelerator bottles.
Click to expand...
There's 101 autonomous 'fail-safe' return-to-the-surface sub-systems that have been posited, and a few of them even implemented. But nothing is going to get the boat back to the surface if the propeller(s) get entangled in the weeds. The one that stands the test of time is the missing-pulse-detector: on loss of transmitted signal, the circuit generates the proper pulse-length to drive the ballast sub-system servo to the 'blow' position, hopefully dumping ballast water permitting the boat to surface without outside command.

Yeah, those glue bottles are designed to dump the contents should one even dare to look at them once the cap has been removed. Nefarious!
 
merriman said:
There's 101 autonomous 'fail-safe' return-to-the-surface sub-systems that have been posited, and a few of them even implemented. But nothing is going to get the boat back to the surface if the propeller(s) get entangled in the weeds. The one that stands the test of time is the missing-pulse-detector: on loss of transmitted signal, the circuit generates the proper pulse-length to drive the ballast sub-system servo to the 'blow' position, hopefully dumping ballast water permitting the boat to surface without outside command.
Click to expand...
I figured a rescue buoy would at least let you find it relatively easy.


merriman said:
Yeah, those glue bottles are designed to dump the contents should one even dare to look at them once the cap has been removed. Nefarious!
Click to expand...
I do like the Tamiya/MR Hobby jars. Such a squat jar that is very difficult to flip over.
 
Scott Kenny said:
I figured a rescue buoy would at least let you find it relatively easy.



I do like the Tamiya/MR Hobby jars. Such a squat jar that is very difficult to flip over.
Click to expand...
The second thing to happen upon deployment of a float is for the down-haul string to get tangled in the screw(s), blow the motor, with the resulting heat popping the bulkheads, flooding the WTC, killing everything aboard.
 

Similar threads

Back
Top Bottom