Derek Covill's blog for teaching and research

a collection of subject notes, guides and projects

Guide to using SolidCAM to generate 2D toolpaths (pocket+profile) with CNC router

This first video shows the following steps: creating a basic part by importing a .dxf file and extruding it 18mm deep creating a co-ordinate system in Solidworks that can be used by SolidCAM defining the settings for the SolidCAM operations (co-ordinate system, part, stock) defining the pocket steps (and copying them with updated geometry selection)…

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Guide to using Cut2D to generate toolpath from .dxf file to cut with CNC router

This first video shows how we’ve used the Cut2D software to load a .dxf file and generate the g-code using the following steps: Job setup including the location of the origin and material size Importing the vector files from file (.dxf), then joining the open vectors and move/scale/rotate Setup the material and rapid gaps Toolpath…

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First test circuit board on the 1610 mini CNC

    traces cutting quality speed  

Inverting the x-axis on the 1610 mini CNC

Inverting the x-axis There was an issue with the default setting for the machine, where the x-axis was moving in the wrong direction meaning that we were getting parts that were a mirror image of what they should be! This guide gives a full account of Grbl’s $x=val setting, in particular we needed several steps for this machine….

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Introducing the 1610 mini CNC project

Introducing the 1610 mini CNC project This project is about building a small, desktop CNC milling machine. We started out purchasing a very inexpensive kit for about £120 from ebay with the idea of then adding features and improving the reliability of the machine. In particular we set out to: improve the safety aspects of the…

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Guide to milling a mould tool on 1610 CNC using GRBL

How to make an open mould tool on the 1610 GRBL milling machine This guide takes you through the process of creating a simple open mould tool. The idea here is that you don’t actually have to design the tool. Instead, by cleverly positioning your part inside the stock material, you can machine it in…

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