Just finished setting up the 4th axis.

That table is starting to look a little crowded.

Programmed and machined a T-800 head from thingiverse:

Here is a finished scull video from all sides: https://youtube.com/shorts/mdclf5LvdyM?feature=share

In the 1st op I milled the base with a 1/4-20 tapped hole right where my Z0Y0Z0 will be.

Then I mounted the base on a square fixture using the tapped hole. This way as I index the square fixture in the vise, my part Z0Y0Z0 remain in the same spot.

2nd op was the back of the scull

3rd op was the face, and the 4th and 5th were the sides

Here is a YouTube video of some of the 3rd op machining. Warning Loud Noise!

Thinking about getting your self an affordable desktop CNC?

Check out this Shariff DMC2 designed and built by my fellow Canadian!

I wanted to purchase the first version about a year ago, but his Kickstarter campaign has ended by then and I ended up buying a used Prolight 2000 with auto tool changer.

This looks like a quite rigid, fast and a very powerful (3HP, 24k rpm) machine.

Certainly has better accuracy and power than my old heavy desktop machine with  0.001" backlash and just 1hp, 5k spindle.

Not affiliated in any way, by the way. Just looks like a great product all around.

https://www.youtube.com/embed/e5TsK2Sp-aM

Ever since getting my benchtop CNC running, I have not been very happy with the lack of manual control over overrides and buttons.

This DIY Engineering video gave me a great idea: build one myself.

I wanted the smooth speed and feed overrides, so I decided to not go with HID device, but instead with a full serial control paired with a custom plugin on the UCCNC side.

Here is the Fusion design of the enclosure:

And here it is 3D-Printed.
Acrylic face engraved from the back side and painted.
And all buttons and controls mounted:

All I have to do now is wire the Arduino board, program the plugin, and test it!

Update:

Here is the video of the pendant in action:

 

1. PCB Design

Design notes:

• All resistors used were 10K
• Speed and Feed potentiometers are 10K
  Their pinout goes Wiper->ground = 0%, Wiper -> +5V = 200%
• Axis and Handwheel Increment rotary switches are 4-position and their pinout goes like this:
  Axis select 1-X, 2-Y, 3-Z, 4-A, C-Common (+5V)
  Handwheel Increment 1-0.0001, 2-0.0010, 3-0.0100, 4-0.1000, C-Common (+5V)
• All function buttons such as Jog +/-, M1, M2, etc are sending +5V signals to the digital pins D2-D12
• D13 digital pin is connected to a LED indicator and is used to tell the user that the Pendant is allowed to send signals to the plugin.

Design files:

• Electronics Design: https://a360.co/3NGWRTP
• https://a360.co/3NLhfDk
• https://a360.co/3JObaVh 

2. Enclosure Design

https://a360.co/3fG3jgI 

If you don't have a 3D printer and/or a CNC Mill, please contact me and I will send you a 3d-printed enclosure and the 3d-printed or milled acrylic face plate:

• 3D-Printed Black PLA Enclosure (shown in pictures): 30$ + shipping
• 3D-Printed Black PLA Face Plate (optional): 15$ + shipping
• CNC Milled and Engraved unpainted (clear) acrylic Face Plate (shown in pictures): 30$ + shipping

3. Arduino Setup

• Install the Full Firmata library onto your Arduino Nano (Or any other Ardiono that supports USB Serial Communication): StandardFirmata sketch used for Arduino NANO is also added to the release package

• Please note that you might need to install Arduino USB Driver in order for your Arduino to work on the target computer!

4. UCCNC Setup

• Download the latest LEETArduinoPendant from the releases and extract it to your PC.
  https://github.com/swindex/LEETArduinoPendant/releases
• Copy the LEETArduinoPendant.dll plugin file to the C:\UCCNC\Plugins directory!
• Copy the Solid.Arduino.dll file from the Solid.Arduino release folder to the C:\UCCNC directory.
• Please note that you might need to install Arduino USB Driver in order for your Arduino to work on the target computer!
• Launch UCCNC.exe, go to Settings->Configure Plugins, and mark the LEET Arduino Pendant plugin as Enabled and Call startup
• After everything is installed, Arduino is connected and UCCNC is running, press the "Enable" (+5v to D2-B-ENABLE ) button that will tell the plugin that the pendant is ready to send signals! D13 (LED+) will then have a continuous +3.3V signal alerting you of that!

Hardware Acquisition (Amazon)

The job of a software developer is to solve problems.

So naturally, when I wanted to easily edit a screenset for UCCNC motion control software, I decided to create an app for that!

You can find it here: https://snapwebapps.com/uccnceditor/

Read More 

Since my garage/shop has a limited workspace, I have long wanted to upgrade the big and clumsy computer I used to drive my little Prolight desktop CNC to something more elegant and convenient.

TL;DR: You can read about the printing settings and download files on Thingiverse: https://www.thingiverse.com/thing:4754968
Here is the shared Fusion Project: https://a360.co/36UhI15

After quite a bit of googling, and testing the UCCNC control software that i already have I decided to re-use my old Z83 mini-PC with Intel Atom processor.

Then I ordered a SunFounter 10.1" touchscreen monitor with a nice resolution of 1200x800 from amazon.

Since the display does not come with an enclosure I decided to design one myself.
A good opportunity to dust off my 3d modeling skills:

Read More 

Did some testing for HSMAdvisor in A36

Tool: 3/16" 4 FL 0.25" LOC 0.7 Stickout

RPM: 5000 Feed: 32.0ipm

Original engagement DOC:  0.25, WOC: 0.083

Was successful and sounded nice, but the TTS holder started to pull out. Had to half both DOC and WOC for the video:

Machined this 2-piece utility knife on my ProLIGHT2000 benchtop CNC.

Just one little lock left!

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A post shared by Eldar Gerfanov (@hsmadvisor)

Finally got my proLIGHT CNC Mill running with UCCNC control software.

Chose that over mach3/4 because uccnc software seemed better made. Unfortunately, it too has bugs.

Most importantly, executing gcode.
Instead of running all codes in a block simultaneously, it does them in the incorrect order.

For example, code like

Instead of going to X0 Y0 defined in offset #54, it will go to coordinates of offset #55!
Only after executing that line, the offset will change to G55.
Similar issue with

Don't need to tell you this may lead to crashes.
So I changed the MasterCAM's post processor to output some of the codes in different lines.

Hopefully, devs will fix this issue soon.

In other news, I have just finished the first 2-tool piece.

It was a miniature skull figure made out of aluminum:

I got 150 bucks for machining that for a guy I met in a Facebook group. Nice!

The smallest endmill was 1mm ball nose, and it held up perfectly at max RPM of 5000 and feed rate of about 25ipm.

The DOC and stepover were about 0.004"

Now I wish it had a 20k spindle. If I could run at 100ipm, it would make a quick work of that little piece.
This way, it took 1 hour, which is not too bad either.

Cheers!