How to Square Up Stock in a CNC Milling Machine
How To Square Up Stock
In the CNC work shop one of the first tasks a machinist must learn to do well is how to square up stock in a cnc milling machine. Squared up stock has all sides parallel to their opposite side and all angles perpendicular to adjacent sides.
Using Square stock allows you to create parts that mate well together. It is impossible to repeatedly create parts without starting from squared up stock. Since one of the reasons we use CNC milling machines is to create multiples identical parts, it only makes sense to start with squared up stock.
Square Up Stock In A CNC Milling Machine
Here is a video which shows the basic process when using a Haas VFO CNC machining center.
Squaring up stock in a CNC Mill can be done manually, using an MPG pendant or by using a G-Code program. Both methods work well depending on your level of experience. In either case there are some basic tips you should consider when doing it.
- Use the fixed jaw of the vise as the reference surface
- Machine the largest side of the stock first.
- Use an aid to guarantee sides are flush with vise
- Debur each side between cuts
- Clean the vise jaws between cuts.
Download a Free Setup Chart
If you would like a handy 3D chart to post next to your milling machine for quick reference.
