Electronics for New Machine + Chinese Spindle + VFD

[cropwell]

If you buy solder from China, it is generally 63/37 Sn/Pb, which avoids the whiskering problem. Commercially you can't use it, but as an amateur you are not bound by recent regulations to industry. If you are not soldering all day and everyday the risk is low.

Most spindle connector plugs have to have soldered joints and I would recommend that you use at leat a 50W iron with a large bit. Low wattage irons and small bits don't transfer heat quickly enough to stop the heat soak up the wire. The faster you can solder a joint (at the correct temperature) the better.

To echo and amplify the remarks of Komatias, you will need to cut down the joint flexing as it is more likely to fail at the solder due to embrittlement of the wire. If you can fit a flex limiting sheath (several layers of heat shrink will help) then you increase the radius of curvature at the flexing point.

Cheers,

Rob


https://www.gore.com/en_xx/products/cables/flat/highflex/flat_cable_hi_flex_apps_tech_background_document.h tml