Digital Manufacturing Assignment-1

Introduction to Digital Manufacturing

Aadharsh Aadhithya - CB.EN.U4AIE20001
Anirudh Edpuganti - CB.EN.U4AIE20005

Madhav Kishor - CB.EN.U4AIE20033

Onteddu Chaitanya Reddy - CB.EN.U4AIE20045
Pillalamarri Akshaya - CB.EN.U4AIE20049

Team-1

Introduction to Digital Manufacturing

What is post-processing. Provide and explain a few examples of post-processing in 3D printing

What is post-processing ?

Makeup after bath 😉

Formal :

Informal :

Performing a task on a printed object to enhance it.

What is post-processing ?

It is important to consider how the overall dimensions of a part will be altered if post processing is implemented.

NOTE !!!

Variation in Dimensional Accuracy

Parameter	Description
Dimensional Tolerance	+/- 0.5%. z direction is typically mre dimensionally accurate.
Shrinkage/ Warping	Thermoplastics that requires a higher print temperature are more at risk. Shrinking behaviour is hard to predict and dependent on the design so no guidelines can be given.
Support Requirements	Essential to acheive an accurate part. Required for overhangs less than 45 degrees and bridge longer than 20mm.

Examples

In FDM and Material Jetting - removing the support material

Examples

In SLS and Powder Bed Fusion - removing the powder

In FDM and Material Jetting - removing the support material

Examples

In SLS and Powder Bed Fusion - removing the powder

In FDM and Material Jetting - removing the support material

In SLA and Photopolymerisation - washing the object

Introduction to Digital Manufacturing

Provide a few examples of troubleshooting in 3D printing

Introduction to Digital Manufacturing

What is Troubleshooting

Trouble shooting is all about problem solving. It is a systematic approach to solve problems that is often used to find correct issues with complex machines, electronics and computers

Introduction to Digital Manufacturing

Troubleshooting in 3D printing

Introduction to Digital Manufacturing

Troubleshooting in 3D printing

Warping
Thin Layers and Layer splits
Poor Infill

Introduction to Digital Manufacturing

Troubleshooting in 3D printing

Warping

This issue comes when printed object doesnot firmly stick to the print surface. It could be temperature problem or something being out of adjustment

Introduction to Digital Manufacturing

Troubleshooting in 3D printing

Warping

Clean the print surface with swab of acetone
Check the temperature settings and make sure they are correct
Make sure that Z-axis endstop has not come out of adjustment
Relevel the printbed and make sure the print surface is level to the nozzle across the entire platform

Introduction to Digital Manufacturing

Troubleshooting in 3D printing

Thin Layer and Layer Splits

This is a random problem. All the other layers of print will be fine but one or two layers are either very thin or split apart

Introduction to Digital Manufacturing

Troubleshooting in 3D printing

Thin Layer and Layer Splits

Check the diamtre of filament setting in your slicer utility
Check the extrusion temperature to make sure that filament is getting heated upto the right temparture
Check the quality of the filament, filament that fails to maintain a consistent diametre through the spool can cause areas to thin out

Introduction to Digital Manufacturing

Troubleshooting in 3D printing

Poor Infill

This type of problematic printing occurs when we print curved shapes with gentle slopping on the top surface

Introduction to Digital Manufacturing

Troubleshooting in 3D printing

Poor Infill

While printing the such kind of shapes make sure that print speed to set to lower
Make sure that you increase the infill of the extrusion width
Check the temperature of the printer throughly

Introduction to Digital Manufacturing

Model and slice an two of the following parts for 3D printing

Introduction to Digital Manufacturing

Part 1