Search found 129 matches

by ChipsAhoy
Tue Jan 29, 2019 8:40 pm
Forum: The Junk Drawer
Topic: Cheap Saltpeter for Stumps
Replies: 30
Views: 3247

Re: Cheap Saltpeter for Stumps

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stump.jpg (7.13 KiB) Viewed 245 times
IMHO
by ChipsAhoy
Tue Jan 29, 2019 9:39 am
Forum: All Things CAD and CAM
Topic: Free and easy to learn 3D CAD
Replies: 39
Views: 17142

Re: Free and easy to learn 3D CAD

I've spent the better part of the last three months trying to wrap my head around this computer 3D drawing stuff. It is a very tall learning curve for me. BUT, all is not lost.... I tried, FreeCad, Onshape, Tinker Cad, Fusion and Solidworks. Hands down the easiest for me to learn was Solidworks. Not...
by ChipsAhoy
Sun Jan 27, 2019 4:39 am
Forum: Casting & Foundry Work
Topic: Release agent question
Replies: 9
Views: 513

Re: Release agent question

If you use it, let us know how the silicone spray works with your wooden core boxes.
by ChipsAhoy
Sat Jan 26, 2019 8:02 am
Forum: Casting & Foundry Work
Topic: Release agent question
Replies: 9
Views: 513

Re: Release agent question

Wish I could take credit for it, but I am a student in this group, so I do help a bit. This is part of the castings for a hit & miss engine.
by ChipsAhoy
Fri Jan 25, 2019 5:39 pm
Forum: Casting & Foundry Work
Topic: Release agent question
Replies: 9
Views: 513

Re: Release agent question

We use CRC silicone spray in our core box to release sodium silicate and sand core hardened with CO2. Our core box and patterns are 3D printed with 175 filament.
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by ChipsAhoy
Tue Nov 06, 2018 8:38 am
Forum: Casting & Foundry Work
Topic: Wanted Mini Mite Sand Muller
Replies: 4
Views: 2772

Re: Wanted Mini Mite Sand Muller

Do you still have this mini for sale? What is the price? Can you post a photo? Do you have a good guess on shipping weight?
Thx Scotty
by ChipsAhoy
Sun Oct 07, 2018 8:12 pm
Forum: Live Steam
Topic: Tap/Drill Chart
Replies: 11
Views: 1848

Re: Tap/Drill Chart

This is good stuff, thx for starting the thread!
by ChipsAhoy
Thu Jul 26, 2018 6:56 pm
Forum: Live Steam
Topic: Milk of Magnesia as Anti-Sieze?
Replies: 41
Views: 6657

Re: Milk of Magnesia as Anti-Sieze?

I worked as a jet engine mechanic in the Air Force, (engine shop, flight line, phase docks and test cell) and subsequently for a pipeline company that used acft deritivative engines to drive the pumps. Never heard of nor used any such thing on any part of those engines. AND, would never want to be c...
by ChipsAhoy
Wed Jul 04, 2018 6:59 pm
Forum: Live Steam
Topic: 'soft' silver solder...
Replies: 7
Views: 1371

Re: 'soft' silver solder...

The silver bearing solder you want is 95% tin, 5% silver. The hardware store stuff is 95% tin, 5% bismuth, or something like that, and is crap to use. The commercial names are Harris Sta-Bright, All State 430. Especially for brass or sstl, the liquid acid flux sold with those should be used. That a...
by ChipsAhoy
Fri Jun 22, 2018 7:06 pm
Forum: Live Steam
Topic: MEG Wendy suspension
Replies: 3
Views: 1618

Re: MEG Wendy suspension

It does help to understand the potential problems and reasonable ways to approach changes. I am going to use 3-point with some springing on the front, but the rubber is giving me concerns on the rear. They don't quite get there on that thread. Thanks Ben.... been watching your thread... ready to bui...
by ChipsAhoy
Thu Jun 21, 2018 10:17 am
Forum: Live Steam
Topic: MEG Wendy suspension
Replies: 3
Views: 1618

MEG Wendy suspension

A question for any of those who have worked on the Wendy suspension, or any of the Hackworth Gear types I guess. The plans call for .250 x 2" neoprene everywhere neporene is indicated. Any neoprene I can find is very very soft. So, I found hockey pucks to cut up. Is that too stiff? Considering the s...
by ChipsAhoy
Wed May 23, 2018 5:34 pm
Forum: Live Steam
Topic: Propane orifice size
Replies: 8
Views: 1744

Re: Propane oriface size

The Marty burners that I'm playing with use a #71 which is what the instructions call for. He goes on to say .....as close to .026 as possible. Now, he is working with 1 psi and up to 5 psi. One nozzle. The two that I have made so far appear way too rich, but I suspect that is poor machining and the...