Sat 29 Jan 2011

Tested!! – 600Ws Dual Pulse Spot Welder

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Today I finished up the copper interconnects on the spot welder. It came out great. Such a tight fit. Mechanically very stout and it looks great. I fired it up and attached my scope to it. The cap and fet output pulses were cleaner than the ones on Fritz’s site. But his is a year old.

I finally figured out a way to mount the lcd. It will hang from the upper front frame with these delrin blocks. It will look great not having a cutout and screw heads sticking out the front of the bezel. I wish I could get a darker bezel to better hide the interior. I’ll have to hunt online for some. Tap plastics only that #54. It was the darkest they had. So tomorrow I will mount the lcd and cnc the bezel. The probe materials need machining to turn them into probes too.

 

Thu 27 Jan 2011

Copper – 600Ws Dual Pulse Spot Welder

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Today was about getting all of the high current hardware machined, taped, bent, and installed. Had to make a couple of delrin spacers to help anchor the bus bars to the chassis. The cap negative cable needs to be large gauge. So I have to find out which has the higher cross sectional area. One #2ga or a pair of #6 or #8ga cables. My 6, 8ga cables are very flexible and will be easier to mount. Turns out it will take 3 6ga cables to best one 2ga cable.

 

Thu 27 Jan 2011

New Bezels Cut

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The first bezel was cut so oversize and it turns out that it was difficult to modify on the mill. So I bought 2 more bezels rough cut far closer to the correct dimensions. I’ll machine them tomorrow and test fit them.

 

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