Laser Cutter/Maintenance
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Running cost
- The tube is £250 for 300 hours
- The PSU is £300 for 750 hours
- The lens+mirrors are £50 for 200 hours
- The expected useful lifetime of the machine is around about 2750 hours, with a replacement cost estimated at £7000.
- The power is (say) 1.2kW at £.2/kWh.
250/300 + 300/750 + 50/200 + 7000/2750 + 1.2*.2 = £4.30/hour
Laser cutter money held in the the foundation bank account:
| Date | Notse | Amount |
|---|---|---|
| 2011-04-02 | Usage Fees | + £210 |
| 2011-05-28 | Usage Fees | + £248.44 |
| 2011-06-08 | Optics set | - £188.25 |
| 2011-06-20 | Cash from tin | + £30.00 |
| 2011-06-20 | Water + tubing change | - £30.00 |
| 2011-06-28 | Usage Fees | + £25.04 |
| 2011-07-12 | Usage Fees | + £88.46 |
| 2011-07-27 | Usage Fees | + £70.58 |
| 2011-12-17 | Usage Fees | + £135.66 |
| 2012-01-21 | Usage Fees | + £48.72 |
| 2012-03-24 | Usage Fees | + £142.12 |
| 2012-05-21 | Usage Fees (Cleaner) | + £5 |
| 2012-06-02 | £69.75 | |
| 2012-12-01 | £110 | |
| 2012-12-01 | £61.53 | |
| 2012-12-02 | £31.14 | |
| 2012-12-19 | £59 | |
| 2013-1-2 | £34.50 | |
| 2013-1-15 | £38.38 | |
| 2013-2-1 | £119.37 | |
| 2013-2-12 | £25 | |
| 2013-2-20 | £88.80 | |
| 2013-9-18 | £700 |
Cleaning Schedule
- Optics cleaning every 25 hours (or as required)
- Extraction fan cleaning every 25 hours
- Electronics section dust removal every 25 hours
- Laserbed cleaning every 50 hours (soaked in a peroxide based cleaning solution)