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Homemade IGBT MIG welder with ATX PSU parts. [blown yet again][blown count: 5]

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Refrigerator:
Went to Aliexpress and found out what the diode was supposed to be and it's a RURU15060 (or 15080, 15090, 15070 whatever) and this whole diode business seems like a bit of a rabbit hole.
The 150EBU04 marked diodes in the TO-218 package are cheaper than the RURU15060 but even the RURU15060 fakes are made in the TO-247AC package.

Ps: one good thing about aliexpress is that the reviews do help out quite a bit, especially when buyers include pictures.

strawberry:
https://www.aliexpress.com/item/32815709325.html
found this wire feed motor, is this any good? are all euro type connectors same size? and what kinda torch to choose?

tautech:

--- Quote from: strawberry on July 08, 2019, 04:36:26 pm ---https://www.aliexpress.com/item/32815709325.html
found this wire feed motor, is this any good?
--- End quote ---
You'd need to check it can reliably feed 0.6mm wire unless you're only gunna use larger gasless wire.
Their cheap plastic feed motor does 0.6mm:
https://www.aliexpress.com/item/32816596600.html?spm=a2g0o.detail.1000060.2.2cc235328Qu7wf&gps-id=pcDetailBottomMoreThisSeller&scm=1007.13339.128551.0&scm_id=1007.13339.128551.0&scm-url=1007.13339.128551.0&pvid=08073933-1557-49fb-89e5-ec18ecf29bc9


--- Quote ---and what kinda torch to choose?
--- End quote ---
The one from the same supplier looks fine:
https://www.aliexpress.com/item/32823078876.html?spm=a2g0o.detail.1000060.1.2cc235328Qu7wf&gps-id=pcDetailBottomMoreThisSeller&scm=1007.13339.128551.0&scm_id=1007.13339.128551.0&scm-url=1007.13339.128551.0&pvid=08073933-1557-49fb-89e5-ec18ecf29bc9

Refrigerator:

--- Quote ---The one from the same supplier looks fine:
https://www.aliexpress.com/item/32823078876.html?spm=a2g0o.detail.1000060.1.2cc235328Qu7wf&gps-id=pcDetailBottomMoreThisSeller&scm=1007.13339.128551.0&scm_id=1007.13339.128551.0&scm-url=1007.13339.128551.0&pvid=08073933-1557-49fb-89e5-ec18ecf29bc9



--- End quote ---

I wonder how many mm2 of conductor is in that cable for that kind of a price.

strawberry:
or this SSJ-4C https://www.aliexpress.com/item/32826045278.html
I dont know what size fits best for 5/15kg spool
I think 0.6mm roller could do the job.
15AK MIG torch seems got thin copper wire for 180A https://www.aliexpress.com/item/32849629353.html

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