tag:blogger.com,1999:blog-247130680149573043.post6659957062378506299..comments2024-03-21T02:26:58.014-07:00Comments on Don's Laser Things: Repairing the K40 LPS #1DonKJrhttp://www.blogger.com/profile/14497402158163702122noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-247130680149573043.post-79228248513193510972022-05-02T01:09:48.983-07:002022-05-02T01:09:48.983-07:00It is truly amazing, interesting thing.
https://au...It is truly amazing, interesting thing.<br /><a href="https://autofuses.online/" rel="nofollow">https://autofuses.online/</a>KaKahttps://www.blogger.com/profile/03660339099567503180noreply@blogger.comtag:blogger.com,1999:blog-247130680149573043.post-31554558087759855972020-07-31T08:43:00.421-07:002020-07-31T08:43:00.421-07:00Why? "Don't ever... Power up the K40 with...Why? "Don't ever... Power up the K40 with the anode or -L wires disconnected"<br /><br />what happens? I disconnected my tube to work on my unit and powered up the unit to test the gantry and now the power supply blows the fuse. Thank you in advance. CommsPrepper at gmailcommsprepperhttps://www.blogger.com/profile/12725453911842326117noreply@blogger.comtag:blogger.com,1999:blog-247130680149573043.post-21646081863067875892019-09-14T11:20:16.720-07:002019-09-14T11:20:16.720-07:00Hi, I bought a K40 second hand and the owner saw n...Hi, I bought a K40 second hand and the owner saw need to replace the tube... I hear noisy inside the power supply mainly in low power.... 25%... 15%.... but in 70-80-90-99% not noisy... finaly the power supply deads... I check all and the HV transformer was inside the ferrite a arc hole... buy new one in aliexpress same model... change and it works but noisy still.... and now, along the HT wire (when pass a metal hole) it was arcing.... only cut some pieces.... it´s so strange...<br />I checked the tube with lights off and at high power (when no noisy) I can see the "ray" along the whole tube... when it´s working at low power (with power supply noisy) I see in the center of the tube the "ray" is too weak than in the tube sides.... <br /><br />But in low power I can cut 3mm plywood (on 3 times) at 25% 15mm/s...<br /><br />I´m affraid..... I use distilled water.... put frozen water in water tank to has the tube temperature at 20 degrees (turn on and off to keep the temperature)....<br /><br />I don´t know if the tube is damaged... I can cut in 1 time a 4mm acrylic at 90% and (I don´t remember well... 10mm/s)...<br /><br />Regards!!Sergio BRhttps://www.blogger.com/profile/06479852201223960873noreply@blogger.com