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Yup, tedious, time-consuming, need special equipment and special materials... But OH MAN, the detailed complex parts you can get.

The difference between resin printers and filament printers was summed up quite well in another thread, I don't remember where right now. If you need detail use a resin printer. If you need durability for a hands on prototype use a filament printer, resin prints tend to be more brittle. I'm...

Most hobby FDM printers are notorious for needing a little extra "clearance" when printing parts that need to mate together. It's just the way the plastic-pooping robots work, those Lincoln-logs that are used to build the part do not leave a smooth consistent edge. I typically have to leave...

Are we talking about restoring to a known working version of the system, or undoing a specific Windoze update because it broke something?

Jasonb: 3D printed parts will indeed shrink as they cool, and they will expand when heated. Clough42 demonstrated this quite nicely when he was 3D printing a test rig for his ELS PC boards. The line-up pins in the 3D printed board holder didn't match up to the board when the holder was...

That's a nice portrait of the Rocker family. Were all those parts carved out of bar stock, or were some of them castings you made?

Looking at that ad my first thought was "That's cool, that'd be only half the stress on each gear set." But then again it's also twice as many parts that can fail. How did this idea work out for the company?

Foketry: Both of those appear to be casting plasters which would explain the difficulty in cleaning it off the casting. Have you ever tried something like Ransom & Randolph's jewelry investment powder, Ransom & Randolph, or it's Italian equivalent? (Search for investment plaster or jewelry...

Foketry: Those are some beautiful castings. What did you use for your investment plaster? Just out of idle curiosity, how large were the flasks, and how did you orient the heads in the flasks? Don

I haven't tried either of these ideas, but..... Printable waxes will also need supports for most overhangs. If you have a printer equipped with 2 extruders then one of those could be the printable wax and the other could be a water soluble material used just for supports. Telling the printer...

+1 on the surreal comment.

I had to go back and look at it myself. That's a nice looking block, but you've got to admit that not everybody as access to the kind of equipment required to do that.

Anybody else having trouble logging into thehomefoundry.org? Or know what's going on there? I haven't been able to get logged in there all week, I keep getting a Network Error message when I try. Don

A laser welder that has the capacity to weld more than thin sheet-metal is probably going to be either in the KW range, or the kilo-Buck range, or more likely both. Welding takes practice, I was taught to gas weld sheet-metal about 50 years ago and there is a learning curve. I can stick weld...

Foketry: I really like the valve covers. Are they 3D printed plastic, or are they cast like some of the other parts? Also is the raised container on the right-hand side in the video, is that the fuel tank or something else? Don

From the number of anchor bolts you must be expecting to lift some serious tonnage with that crane. It looks good, might need some counter-weight though.

Most electrical equipment - circuit breakers, switches and wiring, is rated at 75°C. The better stuff, read more expensive, is rated at 90°C. Most electrical equipment manufacturers don't want to see their stuff running at more than 40°C above ambient. I'd be concerned about the plastic parts...

If the temperature of the pressurized air was hot enough that you were concerned about your plastic bottle, what about that poor motorcycle fuel pump? Isn't it going to get cooked in there? The temperature's gotta be way above the design rating of the the pump. It would seem to me that pump...

Slow-blow fuses have been used for many years for motor protection. They are a time-delay fuse that will tolerate the normal in-rush current of the motor, yet still give some overload protection to the motor. There ARE many better ways of overload protection, but a fuse is always the simplest...

Steamchick: I would normally say that no, one SHOULDN'T affect the other. But then again you never know what kind of tolerances were designed in, or weren't as the case may be. My Wanhao D6 clone 3D printer originally had a relay rated at 10 amps controlling a circuit that routinely had more...