Archive for the ‘Models for printing’ Category.

KWeld spot welder

I recently bought Kweld spot welder kit for all battery welding purposes. The old, transformer welder was not good and welds were not consistent and reliable. Worst issue with transformer welder was inability to weld thicker metal strips (0,3mm Ni).

The Kweld came with everything needed to start welding except power supply source. They offer supercap bank with charger or recommend some RC batteries. I had niether. The most suitable battery pack I have was 3S1P LiFePo pack with internal resistance of 5mΩ. Unfortuantely such source is not OK for kWeld.

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Housing for ST-Link V2 on a single sided DIY PCB

“Quick and dirty” design of the housing for ST-Link V2 on a single sided DIY PCB is available on GrabCad and  __H__E__R__E__

h1 h2 h3 havzing