Soldering a cable to a 2 2kw spindle connector

[@bob_mosavo]

Thanks, Patrick👍 Whenever I have solder cups that are too small for the stranded gauge wire I'm using, I just trim some strands off until the rest of the strands fit, tin the strands, and solder the wire into the cup. But I'm sure you already knew that trick 😉

[@PatrickHoodDaniel]

Great advice!!

[@PatrickHoodDaniel]

Did not know the trick, so thank you kindly! I pinned this comment.

[@PatrickHoodDaniel]

After a little bit of thought, I pondered how the current would conduct through less strands, but the length of the strands and the solder wicking into the strands would have enough cross sectional area.

[@bob_mosavo]

@@PatrickHoodDaniel You could think of it as two resistors in series. Also, with the slightly higher resistance of the section with less strands, any additional heat would be drawn away by the long section with the original number of strands👍

[@mohammadkhodabandeh5703]

Thank you, it was very helpful

[@kbzMine]

Ty for the content, plz tell me , which cable i use to connect vfd to mach3 (shilded or Normal) ty again

[@PatrickHoodDaniel]

Use shielded. Make sure to connect the shield to earth ground.

[@kbzMine]

@@PatrickHoodDaniel tyvm

[@travelswithdan6850]

Hey patrick. Dan from Thailand again. What is the coonector you soldered called? Is it the GX20? I need one for my spindle and i want to make sure i order the correct one.

[@PatrickHoodDaniel]

There are a couple variations for this spindle: Here are the links that have more information: buildyourcnc.com/products/round-female-4-pin-17mm-threaded-spindle-connector and buildyourcnc.com/products/spindle-inverter-female-round-connector-threaded-20mm

[@jrmaximus]

I think 18 gauge is sufficient for the current if it is 220 volt.

[@PatrickHoodDaniel]

@@jrmaximus unfortunately that is what I thought. I was under the impression that since the spindle drew a total of 11 amps, that the three "wires" would share the load. But that is not the case since it is a sine wave where each conductor will exhibit 11 amps (peaks) at different times (120 degrees out of phase with each other). 18 gauge has worked for my spindles for years, but it may not be advisable to do this. I would use 14 gauge, but still calculate the distance as you may need to go to 12 gauge. One interesting tidbit, the Chinese manufacturer will supply 18 gauge cable.

[@TouChA0]

Why you don't use flux

[@PatrickHoodDaniel]

I did. The flux is hidden inside of th solder. Most solder is sold as "rosin core" solder. The "rosin" is the flux, and it is in the core of the solder. If I needed more flux, I would use the flux shown in the video. I typically only use that type of flux in my SMD soldering: kzbin.info/www/bejne/rnuXhGZmd6etidE

[@TouChA0]

​@@PatrickHoodDaniel in the video you said solder past not flux

[@PatrickHoodDaniel]

@@TouChA0 In this video, or the link I provided? In the link, I did add the text "flux" on the screen when I accidentally said paste, but maybe I said it again? Thanks for letting me know.

[@TouChA0]

@@PatrickHoodDaniel the link you provided

[@PatrickHoodDaniel]

@@TouChA0 Yeah, I corrected myself on that video with text on the screen. Maybe I made the mistake twice.

[@thomasj8681]

This video looks like a trap for Vince …

[@PatrickHoodDaniel]

@@thomasj8681 I don't care. I only care about the awesome learning experience I get in the comments section.