This week I wa confusing my self if I can make a mold of a printed part downloaded on internet but after reading a guidance I decide to design something small but not to much shownig about how I made everything, my molder is a fablab logo that I want to cast it in moltern metal. in this week I open my mind and try to study a new vector drawing software "inkscape" previously I was familia with CoreDraw so its my time to try others and seen, Final i like the way it is easy to use, creating bipmap trace is almost awsome. it will be better if I make something related with my project but in my project i will not use molding and casting so that why I decided to use another design which is new. As I said above, I designed my pieces inkscape but after i imported the vector into solidworks for creating my model, because I am a beginner on inkscape i do not know much more about it but this time instady of using one software i want to try all (combination of solidworks 2016-2071, inkscape, and working with 3d model in Vcarve pro. First a downloaded FABLAB Logo.PNG file then I import the file in inkscape, after importing the file on inkscape no thing new i did just i created the trace for my image and and save the file as DXF format.

Importing the png file into inkscape

cganging import configuration

rescale the image

I used the standard tolls bar for resizing and scale by using measurement this my vary depending on the size you want so not presided measurement I took because i keep changing them until to the milling steps

for creating traces of my image

for creating the traces of my imageI went to path and clink on trace bipmap

making some changing on vectors setting

separating image from vector by drag and drop the image on other side from tis origin

delete image and remain with vector abd save the vectors

DWG AND DXF IMAGE IN SOLIDWORKS

to import DXF or DWG i used insert menu and scroll down to DXF/DWG

import vectors in soldwork

After importing the file in soldworks i used feature of extrude boss/baseto have a certain thickness of my model

no need of changing this setting just click next

schetch of vectors of image

at this time no modification need but it time to give it thickness by using extruded boss/base feature and to create this feature we have to click on all surfaces enclosed in vectors

extrude boss/base

i put a small thin part at the back my model as a background and save the file as stl

working with vcarve pro

Vcarve pro as i said in computer controllered machining is the one we use in our FabLab to create machines tools paths and models profiles so now am going to use is as 3D Computer Numerical Controle machine(3D CNC machine)
at the beginning I have to setup the material properties so in this week on not going to talk about these settings the procedure of settings are in computer controller machining week 7 to import the 3D model in Vcarve done in same way as vectors but instude of choosing you choose 3D model to import 2D or 3D model I passed in File >> import >> 3D model creating and then create the toolpath the same way as in 2D but now i used right corner to create toolpath but now i choosed 3D roughting and save the toolspath and its time for mashining the model

Machining the model

for this steps am not going to talk it about it again you can about th procedures of making machines in computer controller machining week 7but i post some image working with machining

milling bit 1/8"

using hot glue to attach WAX on flat wood in order to fix it on shopbot base

start machining

Molding

I used high heat resistance Mold Max 60 and the ration of mixing is 100 for part A and 3 of part B( by weight) so I mixed 100 grams for part B ang 3 grams for part B it is the time for mixing the material to be used in molding and pouring them in our mold

pouring my mold solution into my mold i have to wait for 12 hours for drying of mold so that i must have a solid state mold

Casting

within casting i used faranuce to melt my metal i have to use as my model material the steps i used are

choose metal material of your model

prepare molten material

put your moltern material into your mold

wait until material cool down

filing using sand paper or file

with casting i melt High Density Tin metal in electric farunace at 370 degree celcius but i wa not melting on that degree so i decide to change degree after 10 minute of heating without melting so i used 450 degree celcius for melting.

when my metal melt well it time to remove it in farunace with the help on heat resistance grooves in order to protect your self from hot objects, it better to pull the base of farunace and remove my moltern metal without many risk of accidentaly touch to the hot surface.

pour your moltern metal into your mold and waiting until in cools down after your mold is completely cools down it is the time for filing using smooth sandpaper

Download files

all file for used for this assignment