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Guide
Program in G-code without memorising every cycle. Pick where you are in the program (header, tool, work offsets, machining, retract and end), open an example block, fill in its values with the actual code in front of you and see in the 2D or 3D viewer where the tool will go before inserting it. There are more than 200 lathe and mill templates across Fanuc, Haas, Siemens, Heidenhain, Fagor, Mitsubishi, Mazak and Okuma, and it all runs free in the browser.
Templates are grouped the way a real program is built: 1 header, 2 tool, 3 work offsets, 4 machining and 5 retract and end. At the top you see what your program already has (header, tool, spindle, coolant, machining and end) and clicking any of them opens its template. Depending on where the cursor is, the next step is suggested: start with the header, call the tool, machine, close a cycle with G80 or end the program.
Each template says what it does and which code it uses, such as “Deep peck drilling (G83)” or “Rectangular pocket (POCKET3)”. It looks like the G-code block you are about to write, with boxes where each value goes; hover a G or M code to see its reference card and each box tells you what it is. In Siemens and Heidenhain cycles, which only carry numbers or Q parameters, every value has its name: RTP retract plane, Q201 depth...
You get each control's canned cycles (G81, G83, G84, G71, G70, G76, CYCLE81, POCKET3, CYCL DEF 200, Fagor G87...) and also blocks without a cycle to learn the basics: rapid move, feed line, arcs by radius or by centre, contour, facing, turning and grooving by hand. A filter separates canned cycles from hand programming and can show a single family: drilling, turning, milling, work offsets...
While you fill in the block, the usual mistakes are flagged: empty boxes, an R plane below the bottom, a Q peck larger than the hole, a G00 rapid into the material, a tool without M06, cutting without feed F or a stopped spindle. The Calculate S and F button suggests speed and feed from the material, operation and diameter, using the site's cutting data.
The block's path is drawn dashed over the part in the 2D or 3D viewer, exactly where it will be inserted: below the editor cursor or before the end of the program. Behind it is the site's full simulator: real-time simulation, cycle time with your machine profile, safety and syntax warnings and program export.
With a Pro account, a copilot reviews the program up to the cursor (what is right, what to watch and how to continue), proposes a machining plan from a description of the part, answers questions about your program and explains each checker warning with a fix you can apply in one click.
Frequently asked questions
Yes. It follows the order of a real program, explains every G and M code on hover and every value in the boxes, flags typical mistakes before inserting and shows in the viewer what each block does. Useful for machining students and for anyone programming at the machine who does not remember a cycle's parameters.
Yes. For the mill there is drilling, tapping, boring, pockets, contours with cutter compensation, face milling and thread milling; for the lathe, facing, turning, profile roughing and finishing, grooving, threading and parting off. Each one is available as the control's canned cycle and, for the basic ones, also written by hand with G00, G01, G02 and G03.
Fanuc and ISO, Haas, Siemens Sinumerik, Heidenhain (Klartext), Fagor 8055, Mitsubishi, Mazak and Okuma. Templates are filtered by the selected control and machine, so you only see syntax that works on your machine.
It is the same app, opened for writing a program instead of reviewing one you already have. The simulator starts on the analysis view; guided programming starts on the templates, the list of what the program is missing and the next step.
Below the editor cursor (or in its place if the line is empty) or before the end of the program (M30 or M02), as you choose. The exact line is shown and it can be undone with Ctrl+Z.
Yes: the templates, the warnings, the S and F calculation, the simulator and the cycle time are free. Only the AI copilot is a Pro feature.
Keep going
The same app opened on the simulation view, to review and fix a program you already have.
The full card for each code, with its syntax and its differences by control.
Vc, RPM and feed by material to fill in the program's S and F.
If you have the drawing, generate the full program and review it here.
