Use the Troubleshooting Tab in CONTROL to test.

Needs good electrical conductivity between magnet > whatever is in between > plate. Coated endmills may not be conductive, and the magnet usually makes better contact on the collet nut than the bit itself. Use the Troubleshooting tab to test - lift plate up to touch endmill while watching the Probe indicator on the Troubleshooting tab.

 

I would definitely want to see it in action with the retrofit!

 

Some nice shots of the machine parts setup and something being cut? This will surely provide some perspective to the community

 

Will work, but they won't perform as well as ours. High current rating, but mainly those tend to be High inductance (self braking EMF limits top speed) and sometimes also higher coil resistance (limits acceleration). Our motors were spec'ed for optimal electrical specs too

 

I replied to your question about the 3rd party motors. They'll "work" but "as good as ours" because of the technical differences highlighted in my reply. They will be slower, weaker and accelerate more slowly (likely). But you already have them, so might be fine to compromise a little performance to avoid the purchase of new ones

 

As its a custom machine, pretty much all of them - have a read through Grbl v1.1 Configuration

Start with a profile of one of our machines, and tweak from there, its a different drive system so steps per mm, acceleration, max rate, etc will all be different