Difference between revisions of "Laser Cutter/Maintenance"

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(Running cost)
(Running cost)
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| 2012-12-02
 
| 2012-12-02
 
| £31.14
 
| £31.14
|-
 
! Running total
 
| £780.77
 
 
|}
 
|}
  

Revision as of 18:40, 2 December 2012

Running cost

  • The tube is £250 for 1000 hours
  • The lens+mirrors are £150 for 250 hours
  • The power is (say) 1.2kW at £.2/kWh.
  • So 250/1000 + 150/250 + 1.2*.2 = £1.09/hour
  • The space also used a large chunk of funds to get the cutter, this needs to be recouped.

Therefore a recommended donation of £5 for each hour of use would be greatly appreciated.

Laser cutter money held in the the foundation bank account:

Date 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

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)