CNC bit Diving into Work with no issues on Fusion (solved emi)

[CommunityUser5]

Hey Steve,

sounds like the z plunge issue.

Search the forum for
z plunge issue
EMI
shielded cables
strain relief
Z curly cable
Molex contacts
Makita vs. ER collet

See also these Support documents:

• Z Axis Moving Unexpectedly (Cutting too shallow or too deep)
• Troubleshooting: Rail is getting hung, stuck, grinding, or moving in opposite direction
• Axis moving in opposite direction that told to when jogging

@CommunityUser5

The tin-plated Amphenol/Molex contacts used on these machines do not comply to industry standards. They aren’t even suited to be used on the outside of a machine. Typically you know them from ATX power connector on PC mainboards, and don’t ask how many disks failed because of the poor contact. They are made to be connected exactly once and to be used only internally.

Good standard for stepper connectors are Phoenix gold-plated circular connectors. See here:

@CommunityUser5

For making your own stepper cables, see here:

• Make your own stepper cables for Buildbotics and Onefinity

For replacing the unreliable Molex/Amphenol stock connectors, see here:

• Retrofitting better, industrial circular connectors and adding shielding and PE wire to the stepper cables on Buildbotics and Onefinity