Machine died-- minor maintenance done and back up

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Machine died-- minor maintenance done and back up

Postby Eagle55 » Mon Dec 31, 2018 4:24 pm

Its been a long time since I visited the forum on a regular basis but I thought I would share a problem that I had today. My machine is old enough that I have forgotten exactly where it fits in the various versions that the Shark has gone through but it is the first HD version that came out. I have used it a fair amount over the past 7 years and was using it this afternoon after it having been on and working overnight (which I often do). I cut several tool paths this morning and had reloaded material to cut another item that I was making several of and pressed run and the router burp as thought the power had been turned on and a fuse blew. Router was dead and all lights on control box were off. I'm always concerned when a fuse blows because it is possible and usual that it is an indication of a potential greater problem. I checked the 10A power fuse on the power entry assembly and surprisingly it was ok and metered good. Check the 7.5amp on the controller board and it was good. Started looking at high voltage power wires and notice what appeared to be a cold solder joint on the AC entry point/assy. Put the meter on it and sure enough the neutral wire that looked suspicious was not soldered properly and had finally arced open. Soldered it properly and everything came on when I reconnected the power cord and turned it on. As I am typing it is working fine (watching it on my camera that helps me keep and eye on it from my desk inside the house) Sure gave me a scare though as I am making a batch of units for stock but also for an order than needs to go out the next day or two. Just goes to show that a defect in manufacturing can appear at anytime..... including 7 years later. Only thing I have had a problem with in the 7 years is the HDP router clamp that I changed out to a machined aluminum clamp about 4 or 5 years ago when it developed a crack. Posting pictures of the bad solder joint and also a recent 24" x 53" x 2" thick sign that I did (far too cheap) a couple of weeks ago. I think one of the tool paths that I ran was approacing 24 hours and did multiple long runs on two tile of this sign. It makes me shudder to think that this cold solder joint could have totaled out a piece of 2" thick Mahogany wood this size. Got to say the Shark has paid for itself many times over the years but even more amazing is the lack of maintenance that it has required other than keeping a good stock of silicon spray. Gotta go, time to change the material for another run.
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CNC Shark HD ~ Control Panel 2.0 ~ Windows 7 & XP
Located in West Tennessee near the Tennessee River
http://www.eaglecarver4.com
Eagle55
 
Posts: 783
Joined: Sun Nov 20, 2011 8:44 pm

Re: Machine died-- minor maintenance done and back up

Postby Eagle55 » Mon Dec 31, 2018 4:30 pm

Balance of the photos mentioned in original post
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CNC Shark HD ~ Control Panel 2.0 ~ Windows 7 & XP
Located in West Tennessee near the Tennessee River
http://www.eaglecarver4.com
Eagle55
 
Posts: 783
Joined: Sun Nov 20, 2011 8:44 pm


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