Cost of 3D Printing: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
| (9 intermediate revisions by the same user not shown) | |||
| Line 2: | Line 2: | ||
*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/] | *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. | ||
* | *'''OSE results - printing only: using current uninsulated bed, without 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]].''' See [[Research Papers]] on printing energy efficiency. | ||
=Discussion= | =Discussion= | ||
| Line 13: | Line 12: | ||
=Filament Maker Efficiency= | =Filament Maker Efficiency= | ||
*5kW for 1 kg in 1 Hr = 25 cents per lb of filament made at 10 cent/kwhr energy cost. [https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.theseus.fi/bitstream/handle/10024/53774/NANA_LEVI.pdf%3Fsequence%3D1&ved=0ahUKEwjc_PWO4IjSAhXniVQKHfjxBDIQFggdMAA&usg=AFQjCNE6029_ZnNcE6KbcOzgQ-BgeO0FMA] | *5kW for 1 kg in 1 Hr = 25 cents per lb of filament made at 10 cent/kwhr energy cost. [https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.theseus.fi/bitstream/handle/10024/53774/NANA_LEVI.pdf%3Fsequence%3D1&ved=0ahUKEwjc_PWO4IjSAhXniVQKHfjxBDIQFggdMAA&usg=AFQjCNE6029_ZnNcE6KbcOzgQ-BgeO0FMA] | ||
*'''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]]. | |||
=The Above Is All Wrong= | |||
*Industry standards do not compete with low cost of energy developed by OSE - see [[Cost of Solar Electricity]] for the case of the [[Seed Eco-Home]] - particularly its [[PV System]] | |||
*In the OSE case, the real cost of solar electricity is 1 cent per kWhr. | |||
*In the OSE case of Supervolcano with heated enclosure, the electricity cost for printing one pound of polymer is thus under 1 cent as shown here: | |||
<html><iframe src="https://docs.google.com/presentation/d/e/2PACX-1vQ8wrg_Y9hDEz7RrNG7xRvV1iW_BIxKbsDXwN0xqpiP5IsHzJDp9zGPk8uSI9WKQTixIG1eYH1hwWpL/embed?start=false&loop=false&delayms=3000#25" frameborder="0" width="960" height="569" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe></html> | |||
How do we explain the 100x factor difference of the Pearce paper above? | |||
*10x - for the 10x faster print rate of the [[SuperVolcano]] compared to standard nozzles used in the study | |||
*10x - for the 10x lower cost of electricty than the grid 10 cent/kWhr standard. [[Soft Energy Paths]] discusses that 70% of grid electricity cost is Transmission and Distribution (T&D). | |||
Latest revision as of 04:10, 26 August 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, without 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. See Research Papers on printing energy efficiency.
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.
The Above Is All Wrong
- Industry standards do not compete with low cost of energy developed by OSE - see Cost of Solar Electricity for the case of the Seed Eco-Home - particularly its PV System
- In the OSE case, the real cost of solar electricity is 1 cent per kWhr.
- In the OSE case of Supervolcano with heated enclosure, the electricity cost for printing one pound of polymer is thus under 1 cent as shown here:
How do we explain the 100x factor difference of the Pearce paper above?
- 10x - for the 10x faster print rate of the SuperVolcano compared to standard nozzles used in the study
- 10x - for the 10x lower cost of electricty than the grid 10 cent/kWhr standard. Soft Energy Paths discusses that 70% of grid electricity cost is Transmission and Distribution (T&D).