No More EMI Issues with this simple mod to your Langmuir Pro
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- Опубликовано: 7 окт 2024
- Langmuir Affiliate Link and Discount Code: ManCrafting Save $100!!!
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Special Thanks to my good friend Greg Mead aka Tall Greg aka @themakerlife on Instagram. He is always here to lend a hand when I need it. If you haven't seen his work on Instagram, do yourself a favor and check it out.
We made this modification to my Langmuir Pro this week to prevent potential EMI issues caused by an SMT inductor that is ironically intended to act as a trap for EMI emitted from the Crossfire Pro Board. By removing it and putting in place a solder bridge between the two contact points EMI interference from outside has been eliminated in tests and several owners who have taken the time to make this modification. It took us about 45 minutes to pull it apart make the change and put it all back together. That included filming and moving cameras etc. So I'm guessing someone skilled could do it in under 30 minutes and someone with no experience could fumble through in about an hour.
This fix is specifically for Batch 1 and 2 owners. This modification will be in place with all future orders and will not be required. The new boards will have a Zero Ohm resistor in place of the inductor. The inductor is a little rectangle while resistors are cylindrical. There is no need to do anything if you see the resistor in L1.
It's important to mention, this is not a Langmuir issue. Many Plasma CNC Tables battle EMI issues I found out as I was researching this issue. Grounding bus bars, grounding rods, and many other additional features have been added and sold aftermarket to deal with this issue.
Link to the Forum Post from Langmuir:
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I don’t own a plasma cutter, but I really enjoy seeing problems solved. Very informative video. Nice work guys!
Thanks Bernie. It was an easy fix. One that I personally probably didn’t need to do, but there were a few people reticent to dive in without seeing it done, so I volunteered.
Great video. Need to do this to my pro table!
Glad it helped. Thanks for watching.
Great video and a clean fix. A minor inconvenience for having so much power at the drop of a key stroke. Had my table running last night spitting out parts that would have taken me hours in the past. So stoked to have the Langmuir table in the shop. 🔥👍🏼🔥
House of Chop it’s simply amazing. I’ve made so many cool things and things I used to pay for an entire 4x8 to be made 180 pieces at a time I can make in minutes at home 10 at a time. No more stocking inventory. I really can’t express how much I love having this in my shop.
SMARTEST MOVE= Taking pictures of Wire Routing!👍
Thanks. I do it on most anything complex. My memory isn’t as photographic as my phone.
Very Cool Bro! I bet this will help out a bunch of people .... Awesome tip to share Chad.👍👍
The Muz Shop thanks Mike. Not exactly viral video fare, but there was a need and I could do the work. Maybe my next video will have broader appeal.
I use nut holders. Screwdriver locking devices with spring grips at the end for the nut. It makes holding nuts where they’re too deep to hold by hand, easy. You just spin the nuts on, and then pull it off. If there is a toothed washer under the nut, tightening from the screw head is then easy. It also works when removing the nuts. It’s better than a magnet because many electronic screws and nuts are actually chrome plated brass.
Great tip. I’ll look into getting a set. Is their a brand you prefer?
Very interesting, I don’t have one but I like how you explained it all 👍🏻good job chad
Thanks JP. 👊🏼👍🏼
Nicely done Chad! 😃👍🏻👊🏻
Fred McIntyre thanks Fred. Greg was the heavy lifter. 👊🏼👍🏼
So I assume all the new machines Langmuir is now shipping have a revised circuit board? The Pro seems to be selling well, back orders are out to September now.
According to their post on the forum, if you don’t have yours yet the new boards will be built with the zero ohm capacitor instead of the inductor. So you’ll be good.
Wait did lamgmire fix this issue?
Forever ago. I was in the first round of presale.
Wow. I can hardly believe they just used an Arduino for the control board. Coulda probably made it a bit more up-to-date and feature rich/robust for the same money.
It works great. Not sure what features it could have that it doesn’t already have.
@@ManCrafting Yeah, no doubt. I'm sure the PC does the heavy lifting anyway. I just ordered a Crossfire Pro last week, so I still have confidence in it. Something just struck me when I recognized that Arduino board, no biggie.
Have yall had any problems?
I'm very interested in the Langmuir plasma table, I recently joined their Facebook group and it seems like a lot of people are having problems with the torch height control. I know these machines are "budget friendly" but they are still very expensive.
No matter what product you get you rarely hear from those of us never having problems and running our tables enough to notice. I don’t comment much on that page but I have. The great thing is when people have legitimate issues the people at Langmuir figure it out. Every time I turn mine on, I’m thankful I found out about this company. I’d probably still not own a table. I don’t have a product, and I don’t promote it as a service and I still make more with it every few months than I paid for it. Make sure you get a good plasma cutter. I have HTP and there are some other that people like.
@@ManCrafting thank you for your response. What is your thoughts on the plasma cutter that Langmuir supplies? I would love to get a hypertherm, I've not seen many HTP cutters. As a stay at home dad of 3 kids, one with special needs I really want to start a small business from my garage and this really fits my interests.
Thanks!
@@LanceSheppard I hear you. I try to avoid saying anything about companies, but my first plasma cutter wasn’t as good as my HTP. It was a huge jump up. Like you I wasn’t in the market for a Hypertherm. The HTP was what a buddy had and he makes a full time living with his. He has a 5x12 table. Runs it 10 hours a day for days at times.
@@ManCrafting I will definitely look into them as well, thanks for your responses!
Anytime.
My Crossfire Pro loses connectivity to my computer at random times during cuts. There’s no rhyme or reason to when or why, it’s hard to replicate. Do you think this could be the reason?
I would contact Langmuir and see if yours was made before or after the discovery of this issue.
2 questions, would solder paste work for this? And would this alow a hi frequency start plasma cutter?
I would stick with solder, but if you haven’t purchased one yet this won’t be an issue. I would avoid HF plasma cutters if you don’t currently own one. There is a list of tested plasma cutters on the Langmuir site. There may be others that work as well, but avoid HF.
If I buy one today is it updated
It is. This video was for all of us that bought the first round.
I wonder it works on an Arduino Nano 😄😄
It’s not.
@@ManCrafting It is an Arduino Nano.
It has the ISP connector there for programing it ( because they removed the micro USB from the board), the reset button, the LEDs... Probably they used a custom GRBL firmware to ocntrol that machine.