1. Provide your CAD model (PDF of the standard four orthogonal views) and your STL file.
Figure 1: - Breadboard box withfour orthogonal views with the link
Figure 2: - Breadboard box, STL file with the link
2. Question & Answers
2.1 What material you would use and why.
3D Printing of breadboard box can be done from different material which is today available in the market. In my case, I use polylactic acid (PLA) material due to its ease of use with low cost and good dimensional accuracy.
Advantage of PLA
Disadvantage of PLA
Excellent Dimensional Accuracy
Can flow so need cooling fans
Low cost compared to other
Not a right choice for outdoor application
Good strength & Stiffness
Filament can get break and brittle
Excellent shelf life
Low heat resistance compared to other
So, we can say PLA is an excellent material for 3D printing purpose today.it can print object at a low temperature and does not require any heated bed. It can create many varieties of parts which use for different applications.
Printing Instruction: -
Nozzle temperature: 215°C
Bed temperature: 50-60°C
Surface preparation: Print surface should be kept clean and grease-free
Figure 3: - (PLA)1kg roll with 1.75 mm diameter
2.2 What printer settings, infill, etc. you would use and why.
As we know that manufacturing is two types first one is subtractive in which material remove from raw material and convert it into a finished product. Second is additive manufacturing, in which content is added layer by layer and make a finished product. 3D printing, it is additive manufacturing, where the material is heated and extruded from a nozzle and layer by layer placed over, and on another, then we found a finished part.
But this is a CNC based programming in which we need G- Code for manufacturing. In our case Breadboard box, STL file, is inserted into slicer, which is a type of software that converts this STL into G-code. So that 3D printer work on that a G-code. because we know that a 3D printer is a 3-axis working machine which is needed G-code for manufacturing of parts according to applications.
Mainly six primary settings need to do for all significant slicer programs.
1- Layer tallness –
Layer tallness is the setting that sets up the stature of each layer of fiber in our print.
2-Shell thickens –
A shell is the outer limit of an item. Shell thickness is the quantity of layer that the external limit divider will have before infill printingstarts.
3- Retraction –
Retraction is utilized for pulling the fiber somewhat once again into the print head during times when the head is going starting with one point on an article, then onto the next purpose of print.
4- Fill density –
Fill density or infill implies how much material will be printed inside the external shell of the article.If fill density is 100% means the object is solid, but if the fill density setting is 0%, that means the purpose is empty inside and weak too much. So, fill density is a choice according to object application.
5- Print speed –
Print speed implies how quick the print head is voyaging while at the same time expelling fiber. The surface finished of an object depends on print speed.
6- Top & Bottom thickness –
Top and Bottom depth imply how much material set down before the infill printing start and how a lot of stuff set down after infill printing is done.
7- Spiralize –
To evacuate the Z scar, we have to initiate the spiralize highlight in our slicer setting. Otherwise, our object is weak and has less strength. So always activate spiralize setting on in slicer.
2.3 How you would set up, calibrate, and level the build platform.
To get anenjoyable and successful print from a 3D printer,we must consider various things.A level print bed is an essential piece of this because as it lets the material expel equitably over the whole form surface.So, we can say bed leveling is the first necessary thing to do for printing any object from the 3D printing machine.
After print bed leveling, we have to modify the Z stature. Right now, need to do this physically that, adjust fibre stream and ned grip appropriately. After that we set the requires an incentive in programming, with the goal that the printer realizes what the gap in the middle of the nozzle and plate.
For a decent item from a 3D printing machine, we need both a level form surface and right spout hole to get an even first layer. since we need an ideal establishment for the remainder of our 3D print part.
Figure 4: - 3D printing machine bed leveling
- If we discovered fiber stature and width changes over the assemble surface that implies bed isn't in the appropriate level.
- If we discovered the gap between lines of fibre changes over the assemble surface, that implies bed that’s in a level.
- If fiber is adhering to assemble surface just in some spot, implies bed that’s in level.
Figure 5: - 3D printing machine average level bed leveling
2.4 How you would load the material
- In 3D printing machine material stacking first, we need to take the material guide and hold it with the external part towards us.
- After that, place the material spool on the material guide with the material in against clockwise heading.
- After that, we must manage the finish of the material through the hold in the material guide. At the point when we have done, do proceed.
- Now we must put the material guide with material on it on the spool holder, behind content two, and we need to hold up the unit the printer identifies it.
- Now we need to embed the finish of the material into the feeder and delicately push it until the content is snatched by the feeder and is evident in the Bowden tube. After that, we must choose to affirm to proceed.
Figure 6: - Material loading in 3D printer machine
- Now we must sit tight for the Ultimaker 3 to warm up print centerone and to stack the material into the print head.
- Now we must confirm when the new material expels from the print head.
- After that, we must hang tight a minute for print centerone to chill off and settle.
2.5 What problems you might run into and what you would do about them.
3D printing is suitable for the manufacturing of parts because of less material waste in this type of additive manufacturing. But in this type of construction, we have a big problem with filament because all 3D printing raw material is brittle with after some time when they exposed in the air. This is a big problem that’s brittleness is to make waste of raw material. This problem mostly occurs when we use the 3D printer only a few times in a month, but if we use a regular basis, this problem not occur.
Another problem is associated with the cooling fan which is not working sometimes, that’s make printing surface roughness. Not damage nozzle due to high temperature.
Another problem is associated with Bed movement due to the wrong bed setting in the slicer.
Finally, we need a clean 3D printing machine with smooth 3-Axis movements, so oiling is a necessary thing but not too much.