CNC Customize Parts Professional Solution & Processing Provider

my high school cnc projects

by:QY Precision      2019-09-11
My CNC effort started with a Science Expo project in grade 9. Since then (
Currently at the age of 11, 16)
This is my CNC story. it has become my hobby and favorite pastime.
In ninth grade, my friend and I took the challenge and developed an alternative way to make channels in Nero
Recycled scaffold (
Used to assist in the regeneration of damaged nerves).
The method currently used involves hard and time-consuming molding, and we decided to test an alternative method, the CNC mill.
We built a small, high-precision table-top milling machine.
This machine needs to be accurate /-
We achieved 5 microns.
3, 10, 000 RPM spindle, and there is an area where the scaffold material can be frozen into a solid state that can be machined.
This is the result of the Parker Dedal XY table and the Z axis of the high precision cross roller bearing with the 10, 00 RPM spindle.
The frame of the machine is 8020 extruded aluminum.
In order to achieve the \"clean room\" function, all aluminum parts are treated with Anode Oxidation, and the bottom of the machine is a composite countertop material.
The picture above is CNC, which processes scaffolding with dry ice, motor controller unit, processed spaghetti and scaffolding with a hole diameter of 300 microns.
Yes, five holes vertically along the pasta (
Photos taken with a stereo microscope).
The last completed scaffold (transparent)
With the molding technology, the two big holes are as small as possible, and seven have been processed with a diameter of 300 microns.
We are trying to do something more practical with this machine, but we think its parts are more valuable than function and quick replacement of it, although I am now interested in transforming it for the manufacture of pcb.
During my brother\'s college winter vacation
My grade 10)
He took the liberty of throwing a linear phase of a 3-axis CNC together.
I started to convert some small desktop electronics into a larger factory.
I made any new electronic case and dust cover using CNC, upgraded spindle motor etc.
The result is a work area of 16x10 inch.
00002 inch resolution (
Verify with a thousand ruler)
And 6,000 RPM ER16 spindle and collet.
The XY Workbench is an aerospace technology product with cross roller bearings and zero-backlash ground ball screws.
While I still need to replace the temporary wooded mounting base, this machine is competitive with pictures of CNC, converted electronics and dust jacket.
This machine is usually used for interesting projects, learning and parts for high school FRC robotics teams (
I am the mechanical supervisor, responsible for making sure all the parts on the robot are made, here is more info)
Designed for small components, sonic screwdriver and carbon fiber rocket components, this machine is a larger 4-axis clone of CNC manufactured for scientific projects. With +/-
3 micron resolution and precision a shaft gear reducer this machine has a work area of 4x10 with a torque of 360 degrees on the shaft (+/-. 0001 degrees).
To be as professional as possible, I printed the panel of the electrical housing.
The shell allows the processing of hazardous materials in a controlled environment (
Example of carbon fiber). A micro-
A particle filtration system has been installed to filter out all dangerous carbon dust (
Will cause harm to electronic products).
Machine operation (
Start, stop, ventilation control, etc)
Change the LED, s, flashing red, yellow, and Green to alert and alert the user to indicate a change in the machine.
It took a few months for this machine to get the job done and I am very happy with the results and I can\'t wait to start using it!
The first thing I want to do is the sonic screwdriver from Dr. 11.
Note: The original design and manufacture of this machine (by me)
Make a multi-coating indicator on an iridium needle used in an eye-based medical research project.
The latter was rebuilt to the CNC seen above.
I have a small CNC lathe in my school engineering department, but I have never seen it used.
When I looked into why I found that there was a problem with the control system.
After consulting the department chair and showing him my previous project, we decided that I had a budget of $1000 to rebuild the lathe.
I decided to replace all electronics, old cheap servo motors with a more powerful stepping motor, new digital stepping driver, CNC USB MK2/4 controller and use the current three phase motor controller
After working for lunch and open hours for a few weeks, that\'s the result.
So far the machine has moved from a temporary working environment and we are trying to find a circuit breaker that can provide enough current for the lathe for more than a few minutes.
Besides the power problem, the lathe is a good choice for students, robots and science clubs.
This is a very interesting project, I have learned a lot about solving problems that existed before, and now I want a project of my own!
All my previous projects built the last CNC building before going to college in the fall of 2016 and built a 5-axis mill.
Independent research as Autodesk advanced CAD and CAM Manufacturing®Inventor®And Autodesk HSM®All aspects of the machine have been completed so far, and I have started to do stress testing and computer simulation and have signed some unique manufacturing contracts. (
My dad gave me a budget of $1000 to make this machine, not including anything we already have).
The machine will have an 18x15x15 inch working area of 150 and will have 360 degrees of freedom in the respective a and B axis of rotation.
I use the same Aerotech grinding ball screws on the 3 axis mill of Y and Z and buy similar ball screws for the x axis.
All linear rails are thk hsr or HR 25, or 20mm rails.
For A and B I have two Alpha gear reducers 61: 1 with 4 point contact ball bearing gear heads (
Within 3 arms ,/-.
0001 degrees of recoil).
I am buying a CNC USB MK3 Ethernet/USB controller for the control system and using 5 parker PDS-
13 step drives.
For the spindle I have a 10,000 RPM spindle with a closed loop servo with ER25 collet and 5000 RPM to power it at 2: 1 (
The closed loop feedback servo allows the hole to be wrapped with a tap, and the thread is made with other similar tools).
I am using a brush servo controller and a servo amplifier to power the spindle motor.
I also decided to invest in a fully mature coolant and spray system that is waterproof and adds the lowest waterproof performance to all components in the processing area.
There is a grease shield and coolant collection system around the machine.
A unique problem arises how to make a precise, hard, low-cost machine without using cast iron used in most factories.
Consider filling the aluminum box with concrete, sand, cat lift, etc;
Or a steel pipe with a similar filler, I decided to get out of the box.
The maximum 3 parts of the machine will be vertical supports on granite, A table and z axis, respectively, 3 and 4 inch thick.
These will be CNC water jets cut by local granite shops on their 5-axis CNC, which are commonly used on countertops.
Above is a photo of the machine CAD model, along with many of the main mechanical properties with the text title.
Thank you for your time and I look forward to any and all comments, suggestions or questions you have.
Hope you get inspiration from this and continue to invent, please vote in CNC challenge and tool contest!
Custom message
Chat Online
Chat Online
Chat Online inputting...
Sign in with: