CNC FAQ
Answering all of your CNC Questions
For both STEPCRAFT and Non-STEPCRAFT CNC Systems
UCCNC is the machine control software that moves your STEPCRAFT machine and interprets G-Code. In order to use your STEPCRAFT machine, you will need the UCCNC software as well as the STEPCRAFT machine-specific profiles. You can download and install both from the STEPCRAFT Multi-Installer that comes on your orange USB flash drive, please email support@stepcraft.us to get a copy. STEPCRAFT will always have the latest compatible version of UCCNC included in the Multi-Installer.
Understanding the Homing Procedure
Whenever you open UCCNC, the very first movement you should make with your machine is "Home All". On a STEPCRAFT, the homing procedure begins with the Z-Axis, then the X-Axis and finally the Y-Axis. Each axis will run towards its limit switch until it engages the switch, then will run the opposite way until the switch disengages. Once all three axis have hit their limit switch, your machine is now ready to travel the full length of each axis!
This is known as a reference movement for the machine. Without this reference movement, the machine has no idea where it is along its axis and may not travel the full length back and forth. If your machine is stopping short of the full length of travel and you aren't noticing any binding, make sure to "Home All" and try running again.
One important thing to note is that if any axis ever travels in the opposite direction of its limit switch when homing, check to make sure a limit switch is not engaged somewhere on the machine. All of the limit switches are on the same circuit, so if you tried to home your machine and the Y-Axis limit switch was pressed, the Z-Axis would travel in the OPPOSITE direction. This happens because the machine is going through the stage of homing when it backs away from the switch until it disengages. Because the Y-Axis switch was pressed, the Z-Axis will infinitely try to move away but it will never disengage.
UCCNC CNC Basics 4/17/20, 2:58 PM • 3,844 Views • Direct Link
The Oscillating Tangential Knife requires no special software outside of the standard CAD/CAM program used to design and create toolpaths. Cut2D, VCarve Desktop and VCarve Pro are all compatible with the OTK-3. As of May 2019, the only "special" software needed to run the knife is the free version 1.2110 of UCCNC.
Securing your workpiece for use with the OTK-3 may require use of a vacuum table or sticky table, as materials such as hard foam, cardboard, leather, cork and carpet can be tough to hold with traditional clamping methods.
Pre-Purchase Questions Stepcraft Attachments and Access 4/17/20, 2:53 PM • 2,579 Views • Direct Link
Z-Axis Alignment for STEPCRAFT D.Series Machines
The following videos will walk you through a typical Z-Axis Alignment...
Here is a video showing you how to do the cleaning and greasing procedure
An Example of an Aligned Stepcraft Machine
How to strength-test your Stepcraft CNC
Homing Each Axis
Speed Test
Alignment-z-axis
Z Axis Alignment - Disassembling the Z Axis
Z Axis Alignment - Setting the Z Axis Rollers
Z Axis Alignment - Lead Screw Nut Alignment
Z Axis Alignment - Inspecting Your Z Axis Stepper Motor
Z Axis Alignment - Reassembling Your Z Axis
Z Axis Alignment - Final Alignment and Testing
Your E-Stop could be active. Check to make sure the E-Stop in the front face of your machine is not engaged. Also, the US 110 volt edition of Q-Series machine has an additional spindle safety circuit to check - Make sure your 110 volt plug from the back of the machine is connected to a live power source, or, your spindle safety override switch (located on the top of the machine) is engaged.
The HF-500 can support up to 8mm ER11 collets. The most popular in North America are 1/8” and 1/4”, but they have collets that range from 1mm to 8mm that will work. The ER11 is an industry standard that determines the overall collet size. ER11, ER16, ER20, ER25 are all common sizes. But the HF 500 and our Tool Changer tool holders for the MM-1000 are both designed for the ER11.
Spindles and Routers Stepcraft Specifications 4/17/20, 2:53 PM • 2,095 Views • Direct Link
Cura does not come with the Stepcraft PH-40 as a pre-configured printer, and thus requires creating a custom printer profile (please see the PH-40 First Steps UCCNC manual for more information). Below is a PDF containing the parameters for your Cura profile. Please note that the nozzle diameter setting is dependent on what size nozzle is fitted to the print head.
Download Stepcraft PH-40 Cura Printer Settings
3D Printing 4/17/20, 2:53 PM • 3,456 Views • Direct Link
Y-Axis Alignment for STEPCRAFT D.Series Machines
Aligning your Y-Axis becomes much easier with our Y-Axis alignment support videos...
An Example of an Aligned Stepcraft Machine
How to strength-test your Stepcraft CNC
Homing Each Axis
Speed Test
Alignment-y-axis
Y Axis Alignment - Disassembling the Y Axis
Y Axis Alignment - Setting your Roller Tension
Y Axis Alignment - Aligning your Lead Screw Nut
Y Axis Alignment - Installing the Front Plate
Y Axis Alignment - Motion System Installation
Y Axis Alignment - Drive Belt Spacing and Installation
Y Axis Alignment - Checking Your Connections
Y Axis Alignment - Final Adjustment and Testing
Y Axis Alignment - Aligning Y manually
To connect your remote switchable power controller system, follow the diagram below...
What is a surfacing bit used for?
A surfacing bit typically has a larger than normal cutting diameter (1 to 3 inches) and are used to flatten or level uneven surfaces on your project material. They are also used to take the thickness of a material down to a final required size. For example, you might have a piece of rough cut lumber that measures 1 inch in thickness but you need it to be 3/4 inch thick. If you don't have a surface planer in your shop then you can use a surfacing bit with a pocket tool path to plane the material down.
Another common use for surfacing bits is to clean up and level a spoil board. After continuous use your spoil board's surface will have a lot of cuts in it and you might want to clean it up so it is perfectly smooth again. A surfacing bit is perfect for this, especially with machines where the spoil board is physically attached to the machine - you might want to prolong the use of it for as long as you can before replacing.
Leveling your spoil board is also important. If you are looking to engrave .005" into a piece of metal and your bed is off by a couple thousandths from one side to the other or front to back, then the thickness of your engraved lines will vary. By using a surfacing bit, you will ensure that your spoil board is perfectly level in relation to your gantry which will result in a uniform engraving.
Note: Because of the larger diameter of a surfacing bit, it is important to note that you can not take as deep of passes or run as fast as you might with smaller end mills on most machines. Consult your machine's manufacturer for assistance with proper speeds and feeds for surfacing bits. Working With Wood End Mills and Cutters Working with Metals Working with Plastics 4/17/20, 2:53 PM • 3,457 Views • Direct Link