today's work

[He Who Shall Not Be Named]

Question - what material are you making the end caps from?

I was working on a 3D printed design...then realized after looking at your pictures here that I could do the same with my lathe out in the garage (its seriously under-utilized...)

Normal polyurethane casting resin, typically from BJB or Alumilite, cast in RTV rubber tools.

[JHapprich]

...freddy says "under pressure"...

[NavyShooter]

Ok, wow! So you do the pours with the brass inserts in place already? Gets a perfect seal that way?

[He Who Shall Not Be Named]

Ok, wow! So you do the pours with the brass inserts in place already? Gets a perfect seal that way?

Those 'inserts' are temporary: they suspend the soon to be encapsulated O-ring before pouring resin. Once the casting has changed state from liquid to solid the part is extracted from the tool, the 'insert is removed, leaving the O-ring to do its job of making watertight ether an axial running pushrod, or making water tight the union between bulkhead and conduit.

[He Who Shall Not Be Named]

[He Who Shall Not Be Named]

[NavyShooter]

Since I'm mostly a 'skimmer' guy, I'm also working on scaling up a 1/1000 version of the Halifax Class Frigate to 1/144 to make it R/C suitable.

See how it goes. I've got a sample print going right now.

[Subculture]

It’s a dinky little boat that one, Dave.

[He Who Shall Not Be Named]

[Timothy L]

I’m not following. What is the Arm & Hammer used to accomplish? Thank you.
Tim

[He Who Shall Not Be Named]

I’m not following. What is the Arm & Hammer used to accomplish? Thank you.
Tim

To make a quick and dirty filler you first apply wet CA to the area you want to fill. You then sprinkle on backing soda, (Sodium bicarbonate) over the goo. The high pH of that compound is very high, causing the CA to cure hard almost immediately. You then grind away the excess with rotary tools, files, and sanding sticks.

Like so:

[Timothy L]

Thank you. Holy crap!!!!

[He Who Shall Not Be Named]

[Fishb0y]

I completely understand that you want to be known as a master craftsman… but let’s face it, those little figures are works of art. At this point, you might as well start wearing tie-dye, grow a ponytail, and become a vegan. You’re just a few steps away from becoming a full-blown hippie artist!

[He Who Shall Not Be Named]

I completely understand that you want to be known as a master craftsman… but let’s face it, those little figures are works of art. At this point, you might as well start wearing tie-dye, grow a ponytail, and become a vegan. You’re just a few steps away from becoming a full-blown hippie artist!

“From Hell’s Heart I Stab at Thee”