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[macona]

In this video they make steel for a knife with an induction furnace: https://youtu.be/fuToSTnZTTY

[macona]

Also might have done auto clutch assembly....

[macona]

Might try some prozac, that is supposed to get rid of the blues.

Other than that I hear the Blue Man Group is having auditions....

[macona]

Im going to say grinding.

I know it's none of my bismuth, but what are you doing?

[macona]

I wouldn't build one. You can do it but building the circuit so it does not fry itself is non-trivial.

The ones for heating bolts are cheap...

[macona]

No loctite, you dont need it. Heat the chuck up in an oven and drop it on the arbor and give the arbor a whack with a dead blow. Once it cools its not...

[macona]

The VFD won't care about dust as long as it is not conductive dust.

You can use smaller VFDs to run larger motors but you will probably...

[macona]

This is the min and max flames with mine. I only use it very occasionally now mainly when I need a lot of heat energy that my metcal station can’t provide....

[macona]

You can also buy TGP rod, turned, ground, polished. I used some stainless TGP to modify some air cylinders for a winery with heavier rods and it works...

[macona]

Yeah, it used a piezo igniter. The design is well over 20 years old at this point....

[macona]

I have one of these: https://www.amazon.com/PSI100K-Super...dp/B000ICGN38/

Had it for nearly 20 year and...

[macona]

Yep

[macona]

Yeah, white OLED. It is for the OnStep open source telescope controller I use. https://onstep.groups.io/g/main



IMG_0128 by...

[macona]

You can pick up used PID controller off ebay that have 30 step ramp capabilities. Fuji and a couple others. I can't remember the brand on my little furnace,...

[macona]

I use JLCPCB for any board other than tiny otherwise I use OSHPark. Oshpark does gold which is nice but the price gets high fast.

At work...

[macona]

They do make VFDs for single phase motors. I think automation direct sells them....

[macona]

Why use discrete transistors? Use a IPM.

[macona]

Id say its just a static phase converter with an electronic circuit to control the relays instead of a mechanical relay. The faq says its normal not to...

[macona]

Interesting. Found a little info about it here, it is used in a -80 refrigerator. https://www.ohio.edu/mechanical/stir...Berchowitz.pdf

Pic...

[macona]

That "spindle" is just a generic permanent magnet brushed motor with a er chuck stuck on it. I would use one of the three phase ones that are...