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The MCB should never emit smoke or suffer a burnt out coil, no matter what load you present it. That suggests you either had a duff MCB or it was connected up incorrectly. Assuming this is a Type B...

For clarity, I think the simple answer to Niko's question is "no, there is no minimum number of posts you must make before you are permitted to post images".

Looking forward to seeing the new...

Select "reply", then "go advanced", then "manage attachments". Then "add files" to upload files. Then drag the ones you want into the box and you are nearly there. "Add files inline" inserts the...

Another possibility is to get a product shipped to a forwarding company in the EU or some other destination where the alleged exclusivity doesn't apply.

I recently bought a couple of ArcCaptain...

F4.03 frequency should correspond to the F4.04 rpm. What you seem to have told the VFD is that at 50Hz output, the motor will be spinning at 9999rpm. That wouldn't work.

I note that F0.04 is the...

Hard to be certain on the info provided but my first thought would be backlash and flex in the mechanical system, rather than CAM setup.

Backlash tends to be most obvious where the axes change...

That's a plunge rate of >1mm per second. That might be ok for the first mm or so but with a countersink, the spindle load increases proportional to the depth.

When countersinking (chamfering) a...

Turning meshes, stp iges etc files into editable solids never seems to go well. The main issues I've encountered were due to holes or discontinuities in the surface. I think Fusion has got better at...

I got one of these boring head kits. Covers 8 - 320mm with the range of boring bars supplied. It doesn't do facing operations like a Wohlhaupter but you'd need to pay a fair bit more for one of...

The YG-1 "extended neck" AluPower cutters have 9.2mm neck for a 10mm cutter. It doesn't need much reduction, as it's simply trying to avoid contact with the previous stepdown.

Here's the ones I...

Yes, those reduced shank end mills are great for deep cuts where the surface finish needs to be good. The only engage with a limited portion of the total depth yet have a good reach.

I have used...

Here's a 50mm shell mill doing 3D adaptive roughing. Safer / easier than using a long series carbide tool, which would otherwise be needed to reach the bottom of the stock.
...

As I understand it, going up in diameter but trying to keep the feed rate, DOC etc the same will result in a higher surface speed and spindle power. That may not be an issue depending on your machine...

The "amps" setting is simply the limit on the maximum current and is intended to protect the motor from overcurrent during overload. More important is to get the speed and voltage correct. Usually...

Well certainly there's no brake resistor action going on there. You can check the resistor is still intact with your DVM. Obvs no need to actually replace it to check that - but with no voltage, it's...

On this VFD you can't have both DC braking and braking resistor, as they are different mechanisms and you can only enable one or the other.

That "braking starting speed" threshold is only for DC...

That's chatter or judder. The usual cure is to increase or decrease the speed and / or feed until it stops. Often people reduce the feed or speed but you may find that increasing them is a actually...

Interesting problem. I assume you are machining plastic? Not something I do much of but perhaps there are known / effective countermeasures. At the machine level, I expect they would amount to adding...

The issue is actually about the transformer cores periodically saturating when connected to the mains, something that happens on a fairly random basis as I explained. The tendency for them to...

Yes, another option might be a means of turning on and off at a defined phase angle, ideally ensuring the appropriate polarity.

A phase angle controller using a triac to gradually open up the duty...

One issue with a thermistor is the fairly long time constant for it to cool down again and until it does so, the resistance may be too low to prevent tripping the breaker. For an application like a...

Wow that is a massive overkill. You can simply get a timer relay and a metal clad resistor from CPC or Farnell to do the job. I used a Finder timer relay - I think it was this one last time...

I've been using them on both my lathes and they have been fine. There's no real option to tune the drives themselves but you can tune the higher level system. I have closed loop position control on...

Well thought out! Most constructors seem to be fixated on the headline (stall) torque and/or don't consider the fall off of torque with speed. Of course, if you gear your stepper down 2:1 or more,...

Are you sure you want EN8? Sheet spring steel tends to be a different material. Something like this perhaps?...