ΒΆ
Laser Subcommittee Meeting 2021-03-20
Attendees: BlakeS, AdamM, NickB, KamilS
Next meeting(s): Four weeks: regular third Saturday 14:00 ? OK
LG500 "Little Red" (out-of-order)
Realign mirror #2
Lens blemished and cracked on removal: replaced: Cloudray 20mm ZnSe P/N: USFL05D20F20
MCWlaser 60W laser tube, model M60, Product #82061, date of production 2019-09-20? installed 2020-01-12
cutting 3mm MDF in centre of bed at 30-35mm/s
KH7050 "Kellogg/Middle"
cutting 3mm MDF in centre of bed at 30-35mm/s
LC1290 "Big Red"
130W SPT tube with co-linear aiming beam! ~$1500 from
aliexpress.com
, thanks Blake!
https://groups.google.com/g/artifactory-laser/c/VUbCWPG4yT4
https://www.aliexpress.com/item/33026988722.html\
pumping fresh distilled-water coolant
out of order until final alignment and testing
Hour meter
The hour meter started from 1.6 hours, at 20171210 , 400-512 beam-active cutting hours per annum
Date
Hour count
20171210
1.6
20171217
11.5
20181217
488.9 100W installed 20181222
20191216
1026.3
20200919
1318.25 tube dying: now under 50% original power - algal buildup
20201219
1441.1
20210320
1515.6 SPT-TR130W tube installed