3D-manufacturing process claims:Fail Fast, Fail Cheap

Introduction:

In the past decade, the ability to 3D-print buildings has become one of the latest, though controversial, technological advancements in the construction industry.
What was once used to manufacture small objects, figurines and vehicle prototypes is now being used to construct affordable and emergency housing in developing countries.
At around $10000, you can make your own 3D-printed houses which proves to be affordable and safe.

Before using this method for 3D printing, some points are to be considered:

In particular, heating ABS (Acrylonitrile Butadiene Styrene) at a temperature typical for 3D- printing results in high VOC (Volatile Organic Compound) emissions.
Particle concentration of ABS was 33-38 times higher than PLA (Poly Lactic Acid) material.
Hazardous vapors and gases are emitted during the printing process.
Thermoplastics being used like ABS and PLA release UFP (Ultra Fine Particles) and VOCs that cause eye, nose, throat irritation, nausea and organ damage of the workers.
Moreover, probably in 2057, 2.7 million construction jobs could be done by robots that certainly cause future labor shortage.
The cost related to small construction is plummeting.
However, for the companies that specializes printing on the large scale 3Dmodels, the risk is minimal.

Safety signs and precautions to be taken during 3D printing:

Safety signs and labels posted on and nearby printers should warn of emissions and hot surfaces.
HVAC controls for ventilation should indicate the requirements for indoor air quality.
Signs should indicate the location of fire extinguishers, eye wash stations, feedstock and chemical storage and clean up supplies.
Use 3D printers in a well-ventilated area. Handle uncured printing materials with Neoprene (resist oil and petroleum products) and Nitrile (Fire resistant) glasses.
Use solvent absorbent pads for spills and printing material.
Wear protective P100 respirator dust mask when accessing print stage area.
Use Class-D fire extinguishers.

Beside these threats and challenges, why 3D-printed buildings are preferable in Nascent industry?

Building can be constructed within 24 hours using drying cement and recycled raw materials.
The construction speed measures 2 meters (6 ft 7 inches) of building material per hour.
3D printer uses about 0.05Kwhr for 1hour print and in average uses 50 watts, which shows low consumption of electricity.
The 3D-printing services could expand by offering a number of pre-packaged designs that the third parties can use which enhances the amount of printing completed by the business.
The company can expand by heavily re-investing into marketing campaigns which may expand the no. of people visiting the 3D printing services website (especially on the internet).
However, a rapid expansion of the marketing campaigns can impact the profit and loss statement for this business.
As per comparison, 3Dprinters uses Raw materials and Apis Cor printer to built our dream house whereas, manually constructed buildings uses Raw materials, Big Factory, Blocks, Construction team and various tools to build house where pile of wastes are also to be considered.
In contrast, well printed concrete had a density of 2350 kg/m^3, compressive strength of 75-102 MPa, flexural strength of 6-17 MPa depending on testing direction and tensile bond strength between layers vary from 2.3 to 0.7 MPa.

Conclusion: