Recent content by skyline1

Hi Luke The links do work and so do the turbines It'll be interesting to see how they do on steam probably even better if the nozzles are right You have built these at amazing speed and great accuracy, all credit to you they are a splendid little jobs. Nest Regards Mark

Frozen moulding sand, I know all about that one. when we were casting in cold weather we used to put a bucket of facing sand in the domestic oven to get it warm enough to actually mould with (assuming it wasn't full of crucibles of course). This was much to the annoyance of the lady of the...

Hi Luke Great idea, In fact the steam pipe was originally lagged in just this manner but I had to take it for off for some reason during one of it's many modification rebuilds and forgot to put it back on again. This turbine, like yours I expect, was not exactly designed from the get-go. It...

Hi Luke Here you go This is the circuit for a 3 Phase bridge. As you can see it is much like a single phase one except there are 2 extra diodes. You say your dynamo is just a small D.C. motor in a fancy shell so is mine, we seem to think alike in these things. I was thinking about taking...

Hi Luke Aha all is revealed I had visions of hours of work with a die grinder but now I see the back of the casting it's simple. A brushless motor is a possibility but there are a few technical problems. As far as I am aware a true brushless D.C. machine does not exist, A "brushless" motor is...

Hi Don Yes these 3D printers are amazing things. So amazing in fact that I've now got 2 of them (and thinking about a third if the budget will allow). My newest one is an Anycubic Chiron which is huge and will even print life sized model heads ( if I wanted to ! ). The only limit is your...

Hi Henk I don't think that your furnace is the problem, it is more likely that you have insufficient "head" of metal to fill the mould completely before the metal "freezes". There are a couple of ways to get around this. 1. Use a sprue extension, when you ram up the cope "the top moulding...

Fascinating little job, it's not unlike my own steam turbine generator (see my avatar or more pics of it here Genset pics This looks like a Stumph turbine where the steam admission it is straight on tangential to the rotor. Mine is a DeLaval type where the steam comes in from the side at...

Ouch, that sounds nasty ! Failures like this are far less common with more modern drivers although not impossible. The stepper drivers being used in this project are likely to be the plugin Arduino type (A4988 or similar) or the larger TB6600 type if the motor requires it Both of these seem...

I agree completely, The "motor" in question would need to be either one of the newer "self correcting" steppers with an internal position sensor and feedback loop to correct for missed steps or a true servo motor with a built in driver that could accept the same control signals (Step/Direction...

It wouldn't surprise me at all. This may explain why The MSux "update" procedure is so secretive, behind that blue splash screen giving cryptic messages about what is going on (or not) may be parts of the Linux code doing it's stuff with no attribution at all. Whilst you can't exactly pirate...

Not just documents, modern distros can mount and read non native file systems including NTFS (Windows) ones, very handy if you have loads of data on a Windows formatted drive. Linux will treat it just like a native Linux drive. I agree Probably the best OS that They ever came up with, which...

Yes, In fact that is all many older servo motors are. The "Smarts" are in the servo Amplifier/Driver although newer servo motors have them built in as part of the motor

I agree Yes it has ! Much of "the internet" runs on Linux (including this forum probably) and there are embedded mini Linux instances simply everywhere. Routers, Smart TVs, domestic appliances even, (and many more I haven't even thought of) Heck even my Digital Audio Mixing Desk runs on a...

Hi Jim I found them they were on my dropbox here's the link Genset pics Best Regards Mark