Electronics > Projects, Designs, and Technical Stuff

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

<< < (13/32) > >>

strawberry:
thermal compound is not used with silicone alike thermal pads
did you mean NTC ? PTC wont limit inrush current

Refrigerator:

--- Quote from: strawberry on July 01, 2019, 06:14:18 pm ---thermal compound is not used with silicone alike thermal pads
did you mean NTC ? PTC wont limit inrush current

--- End quote ---
Yes, i meant NTC.
The pads are reused from the ATX PSU and it looked like most of the contact was made right around the screw hole and not lower down on the TO-220 so i added some thermal paste to help the diodes out a little bit.

techman-001:

--- Quote from: Refrigerator on June 23, 2019, 08:11:11 am ---
I learned to MIG weld when i was 13, it's basically a hot glue gun for metal.
Assuming the welder is correctly set up it takes about 30 minutes to learn MIG.

Just started a blog at http://brimmingideas.blogspot.com/ . Not much in it as of now but more is sure to come

--- End quote ---

You have a very interesting blog, exactly the kind of thing I love to read because you engineer your projects using materials that you have, to make what you want, without buying everything of the shelf.

Kudos on your moving coil meter project, I was amazed it even worked! I spent 3 years repairing and calibrating moving coil meters in instrumentation and automotive. One rugged automotive method used for a meter bearing is a small tube around the moving coil shaft that has a viscous liquid such glycerin in it. This method adds a lot of damping but seemed to be low friction because the shaft 'floated' in the bearing. It only had one longish bearing of this type with the other end floating free.

Keep up the excellent work, you have a long and interesting career in front of you in my opinion.

strawberry:
For beginners it is nice to have parts you can blow without worries..
downside is large space filled with PCB boards and staff

Refrigerator:

--- Quote from: techman-001 on July 01, 2019, 08:40:15 pm ---
--- Quote from: Refrigerator on June 23, 2019, 08:11:11 am ---
I learned to MIG weld when i was 13, it's basically a hot glue gun for metal.
Assuming the welder is correctly set up it takes about 30 minutes to learn MIG.

Just started a blog at http://brimmingideas.blogspot.com/ . Not much in it as of now but more is sure to come

--- End quote ---

You have a very interesting blog, exactly the kind of thing I love to read because you engineer your projects using materials that you have, to make what you want, without buying everything of the shelf.

Kudos on your moving coil meter project, I was amazed it even worked! I spent 3 years repairing and calibrating moving coil meters in instrumentation and automotive. One rugged automotive method used for a meter bearing is a small tube around the moving coil shaft that has a viscous liquid such glycerin in it. This method adds a lot of damping but seemed to be low friction because the shaft 'floated' in the bearing. It only had one longish bearing of this type with the other end floating free.

Keep up the excellent work, you have a long and interesting career in front of you in my opinion.

--- End quote ---

I actually started the blog because i couldn't find anyone else doing the kind of stuff i was doing, and i thought surely there are more guys like me out there.
So now if anyone's interested in the kind of projects that i'm into they can find my blog.  :)

Navigation

[0] Message Index

[#] Next page

[*] Previous page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod