<![CDATA[SoliForum - 3D Printing Community — Unkown reason but my chassis is charged!]]> https://www.soliforum.com/topic/2228/unkown-reason-but-my-chassis-is-charged/ Tue, 30 Apr 2013 05:39:58 +0000 PunBB <![CDATA[Re: Unkown reason but my chassis is charged!]]> https://www.soliforum.com/post/21359/#p21359 If this is the US.. remember that they haver rather, lets say, unique takes on how Grounding(earthing) works compared to the rest of the world; partilcularly if this is in a building that dates back to the 1960's.

Its entirely possible as ronsii pointed out to have current/voltage present in your earth/ground due to wiring issues elsewhere in the premises.

See http://en.wikipedia.org/wiki/Ground_and_neutral and http://en.wikipedia.org/wiki/Electrical … _countries for more details, particularly the section about 'tingle voltage filters' that are often put into dairy farms etc (cows are more sensitive than most humans...).

]]> Tue, 30 Apr 2013 05:39:58 +0000 https://www.soliforum.com/post/21359/#p21359 <![CDATA[Re: Unkown reason but my chassis is charged!]]> https://www.soliforum.com/post/21288/#p21288 frozensoda wrote:
ronsii wrote:

The ground in the SD power supply(from the high voltage side) is connected to the NEG(-) lead to the main board which is also a ground to the chassis... if you are feeling a shock I would guess that your wiring in the house is at fault... ie. the house wiring ground wire is at a potential above 0 volts, the ground lead from your main panel may have a bad connection or something similar.

This has merit since when I unplug the USB it no longer happens. I do not own a voltometer but when I unplug the USB cable and put my lip to it I no longer feel the shock


Make sure that both devices have their ground plugs and that both of them are grounded properly.

]]> Mon, 29 Apr 2013 21:32:05 +0000 https://www.soliforum.com/post/21288/#p21288 <![CDATA[Re: Unkown reason but my chassis is charged!]]> https://www.soliforum.com/post/21283/#p21283 you can pick up a ground fault electrical tester

like the one below for less than $10 at any
building supply.

http://www.homedepot.com/p/Gardner-Bend … X7dt7WG1v0

]]> Mon, 29 Apr 2013 20:54:23 +0000 https://www.soliforum.com/post/21283/#p21283 <![CDATA[Re: Unkown reason but my chassis is charged!]]> https://www.soliforum.com/post/21268/#p21268 ronsii wrote:

The ground in the SD power supply(from the high voltage side) is connected to the NEG(-) lead to the main board which is also a ground to the chassis... if you are feeling a shock I would guess that your wiring in the house is at fault... ie. the house wiring ground wire is at a potential above 0 volts, the ground lead from your main panel may have a bad connection or something similar.

This has merit since when I unplug the USB it no longer happens. I do not own a voltometer but when I unplug the USB cable and put my lip to it I no longer feel the shock

]]> Mon, 29 Apr 2013 19:34:48 +0000 https://www.soliforum.com/post/21268/#p21268 <![CDATA[Re: Unkown reason but my chassis is charged!]]> https://www.soliforum.com/post/21243/#p21243 Do you have shag carpets? smile

]]> Mon, 29 Apr 2013 16:30:52 +0000 https://www.soliforum.com/post/21243/#p21243 <![CDATA[Re: Unkown reason but my chassis is charged!]]> https://www.soliforum.com/post/21241/#p21241 Check with voltmeter..?

It's quite surprising your chassis has a charge.

]]> Mon, 29 Apr 2013 16:19:02 +0000 https://www.soliforum.com/post/21241/#p21241 <![CDATA[Re: Unkown reason but my chassis is charged!]]> https://www.soliforum.com/post/21239/#p21239 The ground in the SD power supply(from the high voltage side) is connected to the NEG(-) lead to the main board which is also a ground to the chassis... if you are feeling a shock I would guess that your wiring in the house is at fault... ie. the house wiring ground wire is at a potential above 0 volts, the ground lead from your main panel may have a bad connection or something similar.

]]> Mon, 29 Apr 2013 16:15:59 +0000 https://www.soliforum.com/post/21239/#p21239 <![CDATA[Unkown reason but my chassis is charged!]]> https://www.soliforum.com/post/21205/#p21205 I was leaning in to get a close look and my bottom lip contacted the corner of the chassis and I noticed that i felt a shock, about the same as a 9 volt battery. Anyone know why this might be, or if its dangerous?

]]> Mon, 29 Apr 2013 10:19:45 +0000 https://www.soliforum.com/post/21205/#p21205