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Type: Posts; User: Rocketman

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  1. Replies
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    Can you pre-filter your oil? There are setups for...

    Can you pre-filter your oil? There are setups for running waste oil through an automotive oil filter
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    427

    I am working as a blacksmith in Northeast PA and...

    I am working as a blacksmith in Northeast PA and could easily forge these pieces for you, if you can't find anyone closer. Looks like a few hours worth of work. I can do the work on the weekends or...
  3. Thread: sand binders

    by Rocketman
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    907

    It's common to use steel wire/bar to reinforce...

    It's common to use steel wire/bar to reinforce cores in industry. At the iron foundry I worked at we'd use quite a bit in the cores, always done in a manner that they could be removed from the...
  4. Thread: sand binders

    by Rocketman
    Replies
    19
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    907

    In this video the guy uses 1.5% fiberglass resin ...

    In this video the guy uses 1.5% fiberglass resin

    https://www.youtube.com/watch?v=ERgPEKNIEUs

    Never heard of that before, pretty interesting
  5. Thread: sand binders

    by Rocketman
    Replies
    19
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    907

    Just an FYI. Pepset is nasty stuff. It makes a...

    Just an FYI. Pepset is nasty stuff. It makes a mess in your mixer. It offgasses some pretty noxious fumes. It's hard to break down your molds especially with low-temp metals like Aluminum.
    If you're...
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    I ended up buying another identical Simpson that...

    I ended up buying another identical Simpson that was listed. The thing is a BEAST. The barrel and the frame is all 1/2" thick cast iron, it has to weigh over 600lbs. I'm not sure what I was...
  7. Wood actually works reasonably well, but is...

    Wood actually works reasonably well, but is consumable
    edit: for a skimmer, that is
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    There's a handful of turnkey propane furnaces on...

    There's a handful of turnkey propane furnaces on eBay even Amazon
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    Are you using a greensand mold? You can make a...

    Are you using a greensand mold? You can make a greensand basin, it just has to be heavy enough or weighted so as not to lift
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    Mullers on eBay

    There's a pile of sand mullers on eBay right now if anyone is in the market. Not associated with any of them, but I figured I'd throw this up as there's suddenly a nice selection right now, some at...
  11. Would it be possible to beef one of these drivers...

    Would it be possible to beef one of these drivers up with extra mosfets and caps in the tank circuit? There seems to be a pretty big gap - you have these 1kW ZVS drivers and then very expensive...
  12. Hey Pete! I was thinking about Zamak. I have...

    Hey Pete!

    I was thinking about Zamak. I have a small pile of it here that someone gave me when they moved, I will try it at some point.
  13. Rocketman permanent mold/diecast experiment

    Hey all, it's been a while.

    I have a project on hand, where I need to make a reproduction glovebox latch for enthusiasts of my car. I've sand-cast these before, but the results were less than...
  14. Wooohooo!! So happy to see updates again :)

    Wooohooo!! So happy to see updates again :)
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    I work in both metric and imperial. Depends on...

    I work in both metric and imperial. Depends on which project I'm working on. Some of my projects end up in inches. But if I'm working around components that are metric, the project will be metric.
    ...
  16. Thread: Pete's sb9

    by Rocketman
    Replies
    21
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    3,079

    Congrats Pete. I have an SB9 but came with very...

    Congrats Pete. I have an SB9 but came with very few accessories. Yours has all the bells & whistles. Have not had the need to hook mine up, so it sits on my bench. My little Rivett does all the work...
  17. Thread: Hydrogen?

    by Rocketman
    Replies
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    3,412

    Look into building an induction furnace. You can...

    Look into building an induction furnace. You can skip all the inefficiencies of electrolysis and combustion and pour nearly 100% of that electrical energy directly into your melt.
    It's not limited...
  18. Not interested (east coast) but just out of sheer...

    Not interested (east coast) but just out of sheer curiosity - what is the melt capacity of that BAF. 500lb!?!

    You could build a whole commercial foundry around melt capacity like that
  19. Replies
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    Well. I found a big brother (grandfather? haha.)...

    Well. I found a big brother (grandfather? haha.) to keep 'lil anvil company.

    http://i.imgur.com/0g9YVga.jpg
  20. What about permanent mold casting? Small dies...

    What about permanent mold casting? Small dies into which metal is poured.
    Should be able to produce fantastic detail if done right
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    26,484

    Mach3 won't be able to work with the STL file....

    Mach3 won't be able to work with the STL file. Give me your stock sizes, tools, feed/speeds and I'll chooch a gcode out for ya
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    Make some regular water based greensand for the...

    Make some regular water based greensand for the big molds. If you absolutely need the finish that petrobond offers, use a thin facing layer and back the rest with greensand
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    Petrobond really needs mulling to see its best...

    Petrobond really needs mulling to see its best properties.

    Fresh stuff seems to be a little oily, and will stick a bit. It will get a lot better with time.

    I also mull the burned sand back in.
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    For the life of me I cannot find the thread that...

    For the life of me I cannot find the thread that talked about it. It's mentioned a few times in the search results.

    Essentially you mix silicone caulk (the cheap stuff that smells like vinegar)...
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    Yup, I've been reading about that, castiron is...

    Yup, I've been reading about that, castiron is nogo for anvils without a hardened plate on top.

    I still think it would be a cool ornament in any of the heavier metals: CI, brass, bronze etc.

    I...
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