today's work

[He Who Shall Not Be Named]

[Timothy L]

Dang it, dang it, dang it - ooooooh I wish I had seen this a while back - would have saved me a LOT of grief LOL!!!!! But then again why don’t I come up with these common sense approaches on my own?????

Don’t answer that.

Anyway, this is exactly why I follow every post on this thread - always, always something to learn. Thank you David

[He Who Shall Not Be Named]

[He Who Shall Not Be Named]

[trout]

celebrating the 250th anniversary of our nation with David's 250th page on this thread. A lot of time, knowledge, and wisdom in these pages. Thank you David.

[He Who Shall Not Be Named]

celebrating the 250th anniversary of our nation with David's 250th page on this thread. A lot of time, knowledge, and wisdom in these pages. Thank you David.

... and thanks for the acknowledgment, Tom.

Sometimes (late at night, after a busy day, so looking forward to putting my head down on a pillow) -- as I collate the days pictures and spend my last waking moments posting them -- I wonder if people these days actually give a tinkers-damn about such arcane building techniques.

[Timothy L]

I appreciate and learn a great deal from these posts Devid!!

[He Who Shall Not Be Named]

I appreciate and learn a great deal from these posts Devid!!

Guy's like you (Tom, Louis, Jake, and maybe two or three others here) are the reason I take the time to do these little slices of 'useful information'; guy's who come to this table already well established model-builder; guys always on the lookout for other -- sometimes better -- ways of practicing the Craft. Attentive students of the Craft.

[Schmitty1944]

Amazing work. Also amazing you had the presence of mind to take all these photos as you work.

Regarding the jigs you made to create brass railings for the Ark Model U-boat. Are they urethane foam? If so, how do you keep the soldering iron from melting the foam during assembly?

Thanks
Jason

[He Who Shall Not Be Named]

Amazing work. Also amazing you had the presence of mind to take all these photos as you work.

Regarding the jigs you made to create brass railings for the Ark Model U-boat. Are they urethane foam? If so, how do you keep the soldering iron from melting the foam during assembly?

Thanks
Jason

Soldering jigs are made from either 20 or 40 lbs, per, cubic, foot 'RenShape' pattern making board. It's a very tightly packed structure of closed-cell polyurethane.

The 40 lbs. stuff will take the heat of typical low-melt solders ( 600-800 F). Regardless, I undermine the material under where solder joints will be affixed to keep any Renshape gas from contaminating the soldered joint.

Some examples of Renshape soldering jigs:

[Timothy L]

“Originally posted by Schmitty1944
Amazing work. Also amazing you had the presence of mind to take all these photos as you work.

Regarding the jigs you made to create brass railings for the Ark Model U-boat. Are they urethane foam? If so, how do you keep the soldering iron from melting the foam during assembly?

Thanks
Jason
Soldering jigs are made from either 20 or 40 lbs, per, cubic, foot 'RenShape' pattern making board. It's a very tightly packed structure of closed-cell polyurethane.

The 40 lbs. stuff will take the heat of typical low-melt solders ( 600-800 F). Regardless, I undermine the material under where solder joints will be affixed to keep any Renshape gas from contaminating the soldered joint.”
______________________________________

I had the same question!

Not to be totally dim BUT -
1) what are you using or how are you “undermining” the solder joints?
2) is it obvious when Renshape gas contaminates the joint?
3) are round and conical jigs turned on a lathe or would that melt them?

Thank you,
Tim