For the next assigment, I will be working with the Roland MDX 40 A four-axis, but I am not using the fourth axis.
They work to differentiate extruded volumes
Download file Molding_Mouse.stl
I
develop the model using jewelry wax, which is very easy to find.
low cost?, non-toxic, and very friendly with the machinery. This
wax will be use to make the mold for casting.
Once placed in the work file PLAYER SRP program which works with the models.
I prepare the cutting parameters in software
The steps of the process are recorded by establishing the roughing of the tools, and the speed rates.
Establishing the height and the axes percentage.
Preview of the model to be sent to court.
Setting the
parameters of width, length, and the calibration of height which
was difficult, but was solved by using the set Z origin to the
center of rotation.
The working
speed for this material is in the range of 4500 RPM to 3500 mm /
min cutting speed.
Final model for emptying
To make the mold spackling paste walls were chosen, and a little oil was applied to the mold for emptying
This is how the final model looks, because the mixture did not have good consistency.
Exercise 2
Molding, Casting and Composites
I
am very interested in working with the 3-axis CNC, which will hold
this machine on my final project, and in addition of using another
thermoforming machine that runs on heat and drain pump.
I Performed
this exercise, which occupy geometric parameters of nature, with
the modeling student Jaco Miller.
This exercise was performed in Rhino by drawing from a center two curved lines in both directions, multiplying them, and generating the natural pattern of a sunflower.
The lines were attached in pairs to create the shape of each petal separately and then give thickness to each one separated by different colors to make the petals height.
We placed the base of the figure and one by one these were changing the height of one of the sides of each petal by giving each one an inclination, a natural feeling, and movement to the figure.
We also positioned the whole block of wood, which is going to be cut in the shape of this figure with the CNC.
RhinoCAM
Obtained in
rhino design, working for it across RhinoCAM which brings cutting
instructions such as bit rate and tours of the tool, in this case
with paralell finishing work.
The file
obtained with termination NC toolpath that will work in the CNC is
software, which is a means of sending.
All the data that was simulated in the computer was established, which will be the court, so everything is correct and it will remain as the final result approximately.
Now everything is ready for the CNC control to be cut.
Perforations were made with a 1/8 "drill bit to facilitate the passage of air into the thermoforming.
Final Project
THERMOFORMING
To make a
thermoforming, a machine was used on a Mexican manufacturing fab
design, which consists of a working area of 150 cm x 120 cm
divided into 9 areas for thermoforming in each one independently,
and according to the figure to thermoform.
The figure
was thermoform at the temperature of 210 ° Celsius, remaining in
the heat for 3 1/2 minutes, and the total cycle time of
preheating, cooling and heating of the material removal from the
mold was 10 minutes.
The wooden
figure was drilled with a small 1/16" drill bit at the vertices of
the figure, so that the air suction machine remains larger and the
material does not stick more to the figure.
The figure
was placed in the thermoforming machine with a 24 gauge plate
styrenes toxica and not by heat from the machine model. The figure
was contained in the styrene, which created a negative mold
sunflower that can be given various usages.
The Styrene was plate placed in the thermoformer.
Positive
and negative sides of the model.
To complete the exercise model I will pour a strawberry gelatin.
