Individual
In this task I made the flexible tie for small kid.for this I open the solid works I made file in solid works.in this only by making line one after one we get this pattern of tie
Then I save this file in .dxf format
This dxf file I call in RDworks.
RDWORKS-this is the software for laser cutter in this software we give the power and speed for our design to cut in laser cutter.I set the value of cutting it according with kerf setting
this is the flexible tie for kid it looks good
Parametric design
I used 2 techniqe in the same software solid works for making a parametric design ,I explain this in following summary
There are multiple types of joints champer joint,bistable joints,pinned joints,clearance joint etc.Firstly I draw some joints on paper for group assignment in that I made 2 of them.
First method
I make my joints on solid works.
Now I want number of joints but I want some slight changes in that design.then there is easy way to change the small or large change in design with the help of parametric.steps for parametric design how build.
step 1-draw a design on solid works and give dimensions.then extrude that part and this is my final joint for cut.
step 2-Then I insert table to make more joint but having some small changes.then check is there ubdate is allowed.then said yes
step 3-There is one window open, on that all the sketch dimension are displayed.select all and said ok
step 4-One table is now inserted. then we take other two type which is having other dimensions.save table
step 5-type 1 and type 2 is now made.then rebuild and save.new 2 designs are now made
step 6-there is one configration manager in that we see all these above type.i.e default,type1,type2.
step 7-this is my 3 joints with different scale.
After parametric design now I have 3 different design I saved that file as .dxf.then I open the RDWORKS I import that file in RDWORKS then I set the power and speed with considering the kerf
Second method
In this method I am using the same software but process different.these both techniqe I learn from internet.similar way I make 3 parts in parametric design with this process that I will explain below.
First part rectangle-press fit
In this I draw rectangle then at the middle point I making the curve,it looks like leaf then I make a center line and use the mirror command to replicate this same curve on opposite side.From diagram the lenght of one part is 50mm .
Then for parametric design I making that 50mm lenght as globle value as"A"then I relate the equation with "A"there fore we can change only "A" then all other value which is relate with "A"that value also change and the new part is created.
In this I change value of "A"is 60mm then the middele part i.e 10mm is relate like A/5 and the value of that center line change to 12mm and the new part is created.
In this I change value of "A"is 40mm then the middele part i.e 10mm is relate like A/5 and the value of that center line change to 8mm and the new part is created.My all 3 parts are ready by changing the value of "A",I cut for demostration only 50mm part
Second part circle-press fit
I draw the circle with a diameter of 50mm.Then I extrude this part at 10mm. after that I select the plane and draw the notches then I apply the extrude cut command here.then we get the circle which is having diameter of 50mm notch lenght is 1.4mm and inner diameter is 40mm
For making the parametric design I make the 40mm as "A" Which is globle value ,then I set the equation is "A"+10We get the circle diameter And 56/"A" we get the notch length.
After setting all the equation I change the globle variable "A" as 50mm .Then my dimeter becomes"A"+10 i.e 60mm and notches is 56/"A" i.e 1.12mm and my whole part is change
Third part trangle-press fit
After that I draw the equilateral trangle with notches.In this I declare the mid length as globle value"A".In this I declare one more variable as "B" and I connect them through equation.In this diagrame the all sides are same
The half lenght of side is set as "A"*2.7 as one value then set the value of B.
After this my new part is ready and its value change at 20mm.
then I give the file in rdworks and cut this part in laser cutter.I set the speed at 10 and power at 55 so this settings having minimum kerf genrate
These are my all parts of press fit
I assemble these parts with different style
Project part-Casing for electronics
In this I design the pressfit box for my electronics casing,then I will make part in solid works for that I take trangular shap and I extrude this part at 3mm then I want to make this as press fit so I use make the slot in this part I made 4 side part, base ,top
this is side part of my pressfit casing
this is top part of my pressfit ,in this I make a hole for picked out the wires.
then there is another side part
My solid works design is now ready and I will make its dxf file for laser cutter then I import that file in RDWORKS and at the speed of 18 and power 55 I cut theseparts on laser cutter
after cutting the all sides and top i assemble this pressfit casing and because of I consider the kerf so that my press fit easily assembeled. this is my final casing for electronics
In my case i need one motor holder so i make it in laser cutter but this time i cut it in acralic material,for that i first take the mesurment of that motor then i make design in the solid works.
then i make its dxf file ,i import this in RDWORKS and with ecxactly opposite setting i cut it on laser cutter.then i take heat gun at around 300 degree celcious and i bend this part for making holder and after that it looks like ,
Learning outcomes
first time I use the laser cutter I enjoy this assignment becuse that flexible tie is made very good aand I understand the laser cutter settings