Excalibur 21 Scroll Saw Electric leakage in the machine

[Craft Amca]

Hello everyone, the tray of my machine gives electricity, although it does not bother much, sometimes small bumps occur. Does anyone know the cause and solution to this problem? Is your machine like this? I usually experience this when I give power to the machine, I tried the modes with and without pedal, it gives electricity in 2 modes when the tray is running.... Could it be the surface paints?

[kmmcrafts]

I’m no electrician or even know much about it. Kinda sounds like a bad ground connection somewhere. In the back of the saw opposite side of the motor there is a cover plate with 3 screws. If you remove that and look inside there it should have a ground wires on the back side of the motor. Maybe that vibrated loose? Aside from that I’m not sure what to sa other than I wouldn’t be using it until you get it sorted out. 
 

Does the I. D. Tag say it’s made in China? I know the China made laser and CNC machines are notorious for bad ground connections. Sometimes they attach poorly crimped connectors or they attach connectors right over a painted surface. Many post about this on laser groups about having to remove the ground and sanding off the paint then reconnect them. 

[Craft Amca]

thank you for your nice comment and suggestion, when I checked there is no problem...

[Wichman]

I use this Electrical Receptacle Tester  to test my outlets (other brands available):

https://www.harborfreight.com/electrical-receptacle-tester-with-gfci-diagnosis-63929.html

If your wiring has an issue it may be the problem.

 

[JTTHECLOCKMAN]

I would suggest you start at the outlet you are plugged into. The tester linked above is a good starting point. You can have a floating ground. The ground wire at the machine can be well secured and all looks good but you have either a loose ground wire at the outlet or if spliced a bad splice in the box. Or the chord has a bad ground. The tester will test the outlet for you. Money well spent. If that is good you need to see if the ground wire from the male plug end has continuity to the ground wire in the machine. This is done with another type tester that can measure continuity. You would also need to move the chord around some to see if the wire is broken somewhere along the entire wire. Many times a chord gets pulled out of a outlet by the chord alone and this puts stress at the male plug end.  Simple continuity tester from a good company. Sorry I could not follow your terminology so excuse if you mentioned you did this already. Disconnect the foot switch and run the saw without it and do that test. If still the same then follow what I mentioned above. If goes away then problem is within that foot switch. 

Lets check this stuff out first but you could also be looking at static electricity and those type tester can see this. But again should lead to a ground problem. 

https://www.homedepot.com/pep/Sperry-Continuity-Tester-CT6101/300348421?mtc=SHOPPING-BF-CDP-BNG-D27E-027_011_TOOLS_ACC-NA-NA-NA-PLALIA-NA-NA-NA-NA-NBR-NA-NA-NEW-NA-2024&cm_mmc=SHOPPING-BF-CDP-BNG-D27E-027_011_TOOLS_ACC-NA-NA-NA-PLALIA-NA-NA-NA-NA-NBR-NA-NA-NEW-NA-2024-21871116195-178489370548-&gclid=fec940dca26c17d35a1428f5f64a6f0c&gclsrc=3p.ds&msclkid=fec940dca26c17d35a1428f5f64a6f0c

 

I blew up  your photo and a little confused with your set up. Wish I could see the back of that saw where the wires are going. What type of foot switch is that? That is not a sewing machine foot pedal is it? Is it a step to turn on dead man switch where you take foot off and saw stops or do you have to step on it to turn on and step on it again to turn off? The wire out of that foot pedal looks crushed. 

Could you explain this sentence a little more. I am not understanding what you mean.   it gives electricity in 2 modes when the tray is running

Edited Sunday at 03:51 AM by JTTHECLOCKMAN

[Craft Amca]

2 hours ago, JTTHECLOCKMAN said:

Fişe takılı olduğunuz prizden başlamanızı öneririm. Yukarıda bağlantısı verilen test cihazı iyi bir başlangıç noktasıdır. Yüzen bir topraklamanız olabilir. Makinedeki topraklama kablosu iyi sabitlenmiş olabilir ve her şey iyi görünüyor ancak prizde gevşek bir topraklama kablosu veya kutuda kötü bir ek yeri var. Ya da akorun kötü bir topraklaması var. Test cihazı sizin için prizi test edecektir. İyi harcanmış para. Bu iyiyse, erkek fiş ucundan gelen topraklama kablosunun makinedeki topraklama kablosuyla sürekliliği olup olmadığını görmeniz gerekir. Bu, sürekliliği ölçebilen başka bir tür test cihazı ile yapılır. Ayrıca, telin tüm tel boyunca bir yerde kopup kopmadığını görmek için akoru biraz hareket ettirmeniz gerekir. Çoğu zaman bir akor sadece akor tarafından prizden çekilir ve bu erkek fiş ucunda stres oluşturur. İyi bir şirketten basit bir süreklilik test cihazı. Terminolojinizi takip edemediğim için üzgünüm, bu nedenle bunu daha önce yaptığınızı söylediyseniz özür dilerim. Ayak anahtarını çıkarın ve testereyi onsuz çalıştırın ve bu testi yapın. Hala aynıysa yukarıda bahsettiklerimi izleyin. Eğer giderse sorun o ayak pedalındadır. 

Önce bu konuyu kontrol edelim ama statik elektriğe de bakıyor olabilirsiniz ve bu tip test cihazları bunu görebilir. Ama yine bir topraklama sorununa yol açmalı. 

https://www.homedepot.com/pep/Sperry-Süreklilik-Test-Cihazi-CT6101/300348421?mtc=ALIŞVERİŞ-BF-CDP-BNG-D27E-027_011_ARAÇLAR_ACC-NA-NA-NA-PLALIA-NA-NA-NA-NA-NBR-NA-NA-YENİ-NA-2024&cm_mmc=ALIŞVERİŞ-BF-CDP-B NG-D27E-027_011_TOOLS_ACC-NA-NA-NA-PLALIA-NA-NA-NA-NA-NBR-NA-NA-NEW-NA-2024-21871116195-178489370 548-&gclid=fec940dca26c17d35a1428f5f64a6f0c&gclsrc=3p.ds&msclkid=fec940dca26c17d35a1428f5f64a6f0c

 

Fotoğrafınızı büyüttüm ve kurulumunuzla ilgili biraz kafam karıştı. Keşke kabloların gittiği testerenin arkasını görebilseydim. Bu ne tür bir ayak anahtarı? Bu bir dikiş makinesi ayak pedalı değil, değil mi? Ayağınızı çektiğinizde testerenin durduğu ölü adam anahtarını açmak için bir basamak mı yoksa açmak için üzerine basmanız ve kapatmak için tekrar üzerine basmanız mı gerekiyor? O ayak pedalından çıkan kablo ezilmiş görünüyor. 

Bu cümleyi biraz daha açıklayabilir misiniz? Ne demek istediğinizi anlamıyorum.   Tepsi çalışırken 2 modda elektrik veriyor. 

Thanks for your nice comments, it gives electricity both when it works with the pedal and when it works directly with the power cable without pedal. That's what I call a mod. So I don't think it has anything to do with the power cord. I also did grounding tests and there is no problem with the sockets. I suspect the motor

[JTTHECLOCKMAN]

What makes you suspect there is a problem with the saw? Those testers are unreliable. If you touch both ends of the tester it lights up also correct? Did you try the tester on other tools? If you are feeling a tingle when using the saw, I highly suggest you stop using it and find out why. It is going to take some testing but with a better tester (meter style) in my opinion. You get lots of false positives with those type testers. I am sorry I can not help you any more.  

Edited Sunday at 11:47 AM by JTTHECLOCKMAN

[Wichman]

On 5/18/2025 at 12:35 AM, Craft Amca said:

Thanks for your nice comments, it gives electricity both when it works with the pedal and when it works directly with the power cable without pedal. That's what I call a mod. So I don't think it has anything to do with the power cord. I also did grounding tests and there is no problem with the sockets. I suspect the motor

If you are sure of the outlet suppling the power, the next thing I would check is the power cord; any obvious damage? Take the power cord, unplugged, and slowly work from the cord to the machine, bending the card into a gentle u shape, by doing this you want to make sure there are no "stiff" parts in the cord, and stiff parts would indicate that the cord has internal damage and needs to be replaced.

[Craft Amca]

Thank you all for your nice comments, I solved the problem. The current protected socket I was using has 6 socket outlets and only 2 of them have a grounding socket... When I plugged it into a grounded outlet the problem was solved.... funny but true.

[Wichman]

5 minutes ago, Craft Amca said:

Thank you all for your nice comments, I solved the problem. The current protected socket I was using has 6 socket outlets and only 2 of them have a grounding socket... When I plugged it into a grounded outlet the problem was solved.... funny but true.

Thank you for the follow up, this may help future questions on the Village.