Seed Eco-Home Materials Cost Reduction: Difference between revisions

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={{check}}Solar Concrete + 3D Printing + CEB - $35300 Savings=
={{check}}Solar Concrete + 3D Printing + CEB + Lumber - $45300 Savings=
From [[MJ_Sublimation_Log#Fri_Sep_16.2C_2022]]


How to integrate 'scalable' = market rate with ghetto, where ghetto is not market rate? Ghetto needs to be brought up to economic power that the community value increases. That can include training the local community. Perfect place for hardscape via [[Solar Concrete]], and 3D printing for vinyl siding, geogrid, plumbing, nonstructural lumber, gutter, roofing, and more. Work with us in low cost hoods, at $30k houses. To get there, we need a detailed cost analysis of trash + Solar Concrete + CEB. This must be sold. $2M investment - master's students or engineers to develop: $5k CEBs (walls cost half as much), $20.5k 3DP ($5k siding, $3k nonstructural wood including 30 interior wall modules, $1k electrical, $1k plumbing, $2k doors, -1k windows, $3k trim, $1k perv pave driveway, $1k [[Ballast PV Mounting]] roof mount -$1k for OSB, Carport OSB - $500. Trusses - $2k (steel). $29.5k. Landscaping hardscape: -$2k. Exactly 50% less cost.
Total $23k for these relatively low hanging fruit materials:
==Solar Concrete -$6400==
==Solar Concrete -$6400==
*-$2k gravel
*-$2k gravel
*-$200 roof ballast
*-$200 roof ballast
*-$2k concrete
*-$2k concrete. Unless using [[Foundationless Foundation]]
*-$2k hardscape/driveway
*-$2k hardscape/driveway


==CEB - $3000==
==CEB - $3000==
*-$3k walls structure
*-$3k walls structure
==Lumber==
*-$10k saved out of the box using open source CNC sawmill


==3D Printing - Wood-Plastic Lumber Composite and Components - $25.9k==
==3D Printing - Wood-Plastic Lumber Composite and Components - $25.9k==
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See detailed breakdown spreadsheet: [https://docs.google.com/spreadsheets/d/1gVNFYYnBPQ1IWlWiParqIO0uAtbcoT9Pyn4WDJ9p21Y/edit#gid=0].
See detailed breakdown spreadsheet: [https://docs.google.com/spreadsheets/d/1gVNFYYnBPQ1IWlWiParqIO0uAtbcoT9Pyn4WDJ9p21Y/edit#gid=0].


===Phases - Low Hanging Fruit - $10.6k Savings===
===Phases - Low Hanging Fruit - $12.1k Savings===


*-$2k lumber blocking
*-$2k lumber blocking
*-$3k nonstructural infill of excess framing  
*-$3k nonstructural infill of excess framing  
*-$1k interior wall modules - are all non-load bearing and can be substituted immediately
*-$1k interior wall modules - are all non-load bearing and can be substituted immediately
**Includes PEX holders, electrical boxes, pvc holders, wire holders next to boxes, other known wire holders for main utility channel; penetrations; fans; through-wall fans; knockout adapters; pvc; pvc adapters; etc.
*-$3265 in trim [https://docs.google.com/spreadsheets/d/1NZfvquW7wUqwNpWpNNro0oEbCe2iVJ8i3-H60ec1Z7s/edit#gid=746902300]
*-$3265 in trim [https://docs.google.com/spreadsheets/d/1NZfvquW7wUqwNpWpNNro0oEbCe2iVJ8i3-H60ec1Z7s/edit#gid=746902300]
*Geogrid - $472 [https://docs.google.com/spreadsheets/d/1GqRsHKrpSahzMiWSgLGvGiv0XvfEQAaoPbE6rJ1ipnY/edit#gid=677330386]
*Geogrid - $472 [https://docs.google.com/spreadsheets/d/1GqRsHKrpSahzMiWSgLGvGiv0XvfEQAaoPbE6rJ1ipnY/edit#gid=677330386]
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*-$500 PV mounting. Plastic-metal composite - rebar with 3D printed shell
*-$500 PV mounting. Plastic-metal composite - rebar with 3D printed shell
*-$100 for sewer tap
*-$100 for sewer tap
*-$500 - landscaping block
*-$1k - pervious pavement for driveway. See [[Pervious Pavement Blocks]], which are $5k per house so this is -$5k off the higher quality version.


===Minimal Research Needed - $3k Savings===
===Minimal Research Needed - $1.5k Savings===


*-$500 plumbing
*-$500 plumbing
*-$500 electrical conduit
*-$500 electrical conduit
*-$500 - landscaping block
*-$1k - pervious pavement for driveway. See [[Pervious Pavement Blocks]], which are $5k per house so this is -$5k off the higher quality version.
*-$500 rest of electrical (boxes, mounts, other fittings)
*-$500 rest of electrical (boxes, mounts, other fittings)


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*-4k - windows. Requires gas filling, but argon is not much better than dry air [https://chemistry.stackexchange.com/questions/100082/why-would-a-1-cm-thick-layer-of-argon-be-a-significantly-poorer-conductor-of-he#:~:text=The%20thermal%20conductivity%20coefficients%20of,bromine%200.004%2C%20and%20steam%200.018.].
*-4k - windows. Requires gas filling, but argon is not much better than dry air [https://chemistry.stackexchange.com/questions/100082/why-would-a-1-cm-thick-layer-of-argon-be-a-significantly-poorer-conductor-of-he#:~:text=The%20thermal%20conductivity%20coefficients%20of,bromine%200.004%2C%20and%20steam%200.018.].
*-3 k - Doors
*-3 k - Doors
*-1k - roofing instead of membrane
*-1k - roofing instead of membrane. Could utilize [[Roofless Roof]]
 
=Insulation=
*Straw bale is completely feasible in select locations.
*R30 straw bale [https://www.google.com/search?sxsrf=ALeKk026QG9BbsZl0rNsBS9KmerMgczY_w%3A1602863734253&source=hp&ei=dsKJX6q8DJDYsAXHkpG4Cw&q=what+is+R+value+of+straw+bale+house&btnK=Google+Search&oq=how+to+configure+nvidia+geforce+gtx+1650+super+on+linux+mint&gs_lcp=CgZwc3ktYWIQAzIFCCEQoAEyBQghEKsCMgUIIRCrAjoOCAAQ6gIQtAIQmgEQ5QI6DgguELEDEMcBEKMCEJMCOggILhDHARCvAToLCC4QsQMQxwEQowI6CAgAELEDEIMBOggILhCxAxCDAToFCAAQsQM6AggAOgQIABAKOgYIABAWEB46CAghEBYQHRAeOgcIIRAKEKABUMsQWOmzAWD8tAFoBnAAeACAAeQGiAGhS5IBDTExLjQ3LjMuMi42LTGYAQCgAQGqAQdnd3Mtd2l6sAEG&sclient=psy-ab&ved=0ahUKEwiqz4DcvLnsAhUQLKwKHUdJBLcQ4dUDCAk&uact=5]
*Cost of R30 insulation is
*Cost savings of $1/sf wall [https://www.menards.com/main/building-materials/insulation/insulation-rolls-batts/r-30-ecoroll-reg-unfaced-fiberglass-insulation-roll-15-x-22/613430/p-1444437001457-c-5780.htm] 
 


=R&D Investment into 3D Printing Plastic Recycling=
=R&D Investment into 3D Printing Plastic Recycling=
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#4 engineers and 4 builders for 1 year cost = '''$800k''' staff. See [[R&D Budgets of 3D Printing Companies]]. ROI of ~$25k/house=$1Mk/year at the 24 person operation assuming 50 houses/yr.
#4 engineers and 4 builders for 1 year cost = '''$800k''' staff. See [[R&D Budgets of 3D Printing Companies]]. ROI of ~$25k/house=$1Mk/year at the 24 person operation assuming 50 houses/yr.
[[Category: Heavy Equipment]] [[Category: Housing and Construction]] [[Category: Seed Eco-Home]]
[[Category: Heavy Equipment]] [[Category: Housing and Construction]] [[Category: Seed Eco-Home]]
'''Open Source Replication:'''
#Shredder - existing Skid Steer Auger + blades - $2k
#Filament Maker - $600 per 1 kg/hr - need 1 ton per week for a complete house built every 8 weeks -  168 kg per week per filamenter = $3600 base cost.
#'''$30k total at replication phase'''


=Links=
=Links=
*{{check}}[[SEH Cost Savings]]
*{{check}}[[SEH Cost Savings]] - materials and machines
*From logs - [[Seed Eco-Home Material Cost Reduction]]
*From logs - [[Seed Eco-Home Material Cost Reduction]]
*[[Seed Eco-Home Savings with Open Source Construction Machines]]
*[[Seed Eco-Home Savings with Open Source Construction Machines]]

Latest revision as of 01:59, 20 October 2025

Check.pngSolar Concrete + 3D Printing + CEB + Lumber - $45300 Savings

Solar Concrete -$6400

CEB - $3000

  • -$3k walls structure

Lumber

  • -$10k saved out of the box using open source CNC sawmill

3D Printing - Wood-Plastic Lumber Composite and Components - $25.9k

Basic figure of feasibility is 20 lb/day Supervolcano-style extruder print rate per print head. 4-head machine is capable of 560 lb print mass per week. A 12 machine print cluster would thus produce around 3 tons of building materials per week.

See detailed breakdown spreadsheet: [1].

Phases - Low Hanging Fruit - $12.1k Savings

  • -$2k lumber blocking
  • -$3k nonstructural infill of excess framing
  • -$1k interior wall modules - are all non-load bearing and can be substituted immediately
    • Includes PEX holders, electrical boxes, pvc holders, wire holders next to boxes, other known wire holders for main utility channel; penetrations; fans; through-wall fans; knockout adapters; pvc; pvc adapters; etc.
  • -$3265 in trim [2]
  • Geogrid - $472 [3]
  • Geotextile - $250 actual [4]
  • -$500 PV mounting. Plastic-metal composite - rebar with 3D printed shell
  • -$100 for sewer tap
  • -$500 - landscaping block
  • -$1k - pervious pavement for driveway. See Pervious Pavement Blocks, which are $5k per house so this is -$5k off the higher quality version.

Minimal Research Needed - $1.5k Savings

  • -$500 plumbing
  • -$500 electrical conduit
  • -$500 rest of electrical (boxes, mounts, other fittings)

Heavier Research Needed - $13k Savings

  • -$1k interior insulation
  • -$3k vinyl siding
  • -4k - windows. Requires gas filling, but argon is not much better than dry air [5].
  • -3 k - Doors
  • -1k - roofing instead of membrane. Could utilize Roofless Roof

Insulation

  • Straw bale is completely feasible in select locations.
  • R30 straw bale [6]
  • Cost of R30 insulation is
  • Cost savings of $1/sf wall [7]


R&D Investment into 3D Printing Plastic Recycling

Note the infrastructure requirements:

  1. Off-shelf shredder - $20k
  2. Off-shelf filament maker - $30k -
  3. 12 4-head printers @$4k each, high T chamber @20 lb/day/head = 960 lb/day capacity - $48k.
    1. MVP: smaller printer, $2k - $24k
  4. 4 engineers and 4 builders for 1 year cost = $800k staff. See R&D Budgets of 3D Printing Companies. ROI of ~$25k/house=$1Mk/year at the 24 person operation assuming 50 houses/yr.

Open Source Replication:

  1. Shredder - existing Skid Steer Auger + blades - $2k
  2. Filament Maker - $600 per 1 kg/hr - need 1 ton per week for a complete house built every 8 weeks - 168 kg per week per filamenter = $3600 base cost.
  3. $30k total at replication phase

Links

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