Cost of 3D Printing: Difference between revisions
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*Dr. Joshua Pearce's paper - Feb 2017 - [https://www.academia.edu/31327768/Emergence_of_Home_Manufacturing_in_the_Developed_World_Return_on_Investment_for_Open-Source_3-D_Printers] | *Dr. Joshua Pearce's paper - Feb 2017 - [https://www.academia.edu/31327768/Emergence_of_Home_Manufacturing_in_the_Developed_World_Return_on_Investment_for_Open-Source_3-D_Printers] | ||
*Energy consumption of 3D printing - based on paper above - 1 KwHr/100 grams of print | :*Energy consumption of 3D printing - based on paper above - 1 KwHr/100 grams of print (10 cents/100g, or 50 cents/lb) | ||
*Another source of energy cost Indicates 5 hours of printing at 50 watt power consumption rate for a 100 gram print. 25 hours total. About 12 cents for this print - factor of 4 lower than Pearce paper regarding energy costs. [http://3dprinthq.com/cost-running-desktop-3d-printer/] and calculator: [http://3dprinthq.com/cost/] | *Another source of energy cost Indicates 5 hours of printing at 50 watt power consumption rate for a 100 gram print. 25 hours total. About 12 cents for this print - factor of 4 lower than Pearce paper regarding energy costs. [http://3dprinthq.com/cost-running-desktop-3d-printer/] and calculator: [http://3dprinthq.com/cost/] | ||
*'''10kwhr/kg - or 50 cents per pound energy of printing cost assuming grid electricity'''. Energy costs are significant. According to Pearce paper. This appears to be way too high. Check calculations. | *'''10kwhr/kg - or 50 cents per pound energy of printing cost assuming grid electricity'''. Energy costs are significant. According to Pearce paper. This appears to be way too high. Check calculations. | ||
Revision as of 12:30, 14 April 2019
Initial
- Dr. Joshua Pearce's paper - Feb 2017 - [1]
- Energy consumption of 3D printing - based on paper above - 1 KwHr/100 grams of print (10 cents/100g, or 50 cents/lb)
- Another source of energy cost Indicates 5 hours of printing at 50 watt power consumption rate for a 100 gram print. 25 hours total. About 12 cents for this print - factor of 4 lower than Pearce paper regarding energy costs. [2] and calculator: [3]
- 10kwhr/kg - or 50 cents per pound energy of printing cost assuming grid electricity. Energy costs are significant. According to Pearce paper. This appears to be way too high. Check calculations.
- OSE results - printing only: using current uninsulated bed, with enclosed build volume, we use about 150W of power to print when using the heated bed, which is about 3kWhr/lb. This is not efficient, and the use of an enclosure and insulated heat bed should reduce the heating requirements a minimum of 3x. Exact results are to be obtained in Boot Camp 2019.
Discussion
In above scenario, cost would be reduced by 2/3 if we went straight from resin to 3D print, without having to make filament. This, if an effective resin feeding system + pellet based extruder were available, this would be a preferred route for large 3D printed objects.
Filament Maker Efficiency
- 5kW for 1 kg in 1 Hr = 25 cents per lb of filament made at 10 cent/kwhr energy cost. [4]
- OSE efficiency results: Using Lyman Filament Maker, it takes about 2 hours to produce 1 kg of plastic. The filament maker uses only about 200W of electicity. Thus - we are using 200Whr/lb to make ABS filament from pellets. The elecricity cost is thus only 2 CENTS taking an average cost of grid electricy - of 10 cents/kWhr. If we consider grinding the filament from bulk scrap - that may double of triple the cost - making the filament cost from waste plastic under 10 cents per lb. Exact data to be determined in the Boot Camp 2019.