:::RHMT::: Real Home Made Turbo

General Category => Fabrication => Topic started by: 92CXyD on March 07, 2016, 01:34:30 PM

Title: Conversion Harbor Freight Flux Core AC to DC
Post by: 92CXyD on March 07, 2016, 01:34:30 PM
Looking at converting my Harbor Freight Flux Core welder (free from DasPoop) from AC to DC.

Looking at the videos:

https://youtu.be/NoYN4vx1WU8 (https://youtu.be/NoYN4vx1WU8)
https://youtu.be/XJQFMSKDNic (https://youtu.be/XJQFMSKDNic)
https://youtu.be/lTxbNfg4-vg (https://youtu.be/lTxbNfg4-vg)
https://youtu.be/JiH7YXYzKiQ (https://youtu.be/JiH7YXYzKiQ)
https://youtu.be/LkH9P7ToWpA (https://youtu.be/LkH9P7ToWpA)
https://youtu.be/8gL2_BuXcxg (https://youtu.be/8gL2_BuXcxg)
https://youtu.be/kOWuVj8edR4 (https://youtu.be/kOWuVj8edR4)
https://youtu.be/eKH-QD7g4UA (https://youtu.be/eKH-QD7g4UA)
https://youtu.be/Lq0nUFDTLAo (https://youtu.be/Lq0nUFDTLAo)

So looking at my list of parts needed:
1x 27000uF 50V Electrolytic Capacitor United (may go with 2) ($20usd/ea)
http://www.ebay.com/itm/121822635649?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT (http://www.ebay.com/itm/121822635649?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT)

1x MDS150A 3-Phase Diode Bridge Rectifier 150A Amp 1600V CE Certification ($23usd)
http://www.ebay.com/itm/151063306876?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT (http://www.ebay.com/itm/151063306876?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT)
Or
1x Amico SQL 100A Amp 1000V 3 Phase Diode Metal Case Bridge Rectifier TS ($10usd)
http://www.ebay.com/itm/231390123491?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT (http://www.ebay.com/itm/231390123491?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT)

8g wire and connectors

Question:
Are there better choices of these parts for the money?
Anyone do this conversion? and what experiences did you have?
Will this conversion be good with sheet metal work after I'm done?

Title: Re: Conversion Harbor Freight Flux Core AC to DC
Post by: fastivab6tg25mr on March 07, 2016, 03:26:10 PM
For all the trouble id just get a decent lotus mig. Ive had one for 3 years with no problems and think it was around $450, the wire feed on the harbor freight stuff sucks, i used one for Almost 10 years and even the china lincoln (lotus) is wolds above it 
Title: Re: Conversion Harbor Freight Flux Core AC to DC
Post by: 92CXyD on March 07, 2016, 05:42:29 PM
The HF flux core Free-fifty-Free, so I if I can throw <$50 at it and work, then it be worth it.

Later when I can find the cash I'll get a real mig welder.  :noel:
Title: Re: Conversion Harbor Freight Flux Core AC to DC
Post by: Ntrain2k on October 20, 2020, 06:57:08 AM
What ever happened with this?
Title: Re: Conversion Harbor Freight Flux Core AC to DC
Post by: 92CXyD on October 26, 2020, 11:23:43 AM
Quote from: Ntrain2k on October 20, 2020, 06:57:08 AM
What ever happened with this?

Got it done couple of months ago and it welds decent.

Going to experiment with stainless flux core on my exhaust for the latest Twincharge project.

I'll post pict if my welding isn't too embarrassing  :noel:
Title: Re: Conversion Harbor Freight Flux Core AC to DC
Post by: Ntrain2k on October 26, 2020, 07:08:49 PM
Sweet. I was looking at doing this a while back.