Free, easy software for your TTC450 Pro
The TTC450 Pro gives you a big 460 × 460 × 80 mm working area for the money. Its standard motor is small, though, so the feeds matter. Surfacecraft is free design and CAM software in your browser, with a TTC450 Pro preset that keeps every cut within what the machine is rated for.
For the TTC450 Pro. Nothing to install. Mac, Windows, Linux and Chromebook. Updated .- Work area
- 460 × 460 × 80 mm
- Firmware
- Open-source GRBL
- Spindle
- A 775 brushed motor (8,000 rpm) with an ER11 collet. TwoTrees also sells kits with a 500 W or 800 W spindle.
- Preset
- TwoTrees TTC450 Pro
- Output
- G21 G90 G94 · M3 S… · one .nc per bit
What to know about the TwoTrees TTC450 Pro
Mind the 800 mm/min top speed
TwoTrees' spec sheet rates the TTC450 Pro at 800 mm/min, and some of its other pages quote higher numbers. Surfacecraft uses the spec sheet, so every feed below stays at or under 800.
Fitted a bigger spindle?
The preset is for the standard 775 motor. If you added the 500 W or 800 W spindle, change the spindle power and top rpm in your machine settings, then check your $30 setting matches.
A wide bed, a light motor
A 775 motor is happiest with ⅛″ bits and shallow passes, which is why the table only has a ⅛″ column. Surfacecraft splits deeper cuts into passes for you.
TwoTrees TTC450 Pro feeds and speeds to start with
Starting points for solid carbide 2-flute end mills, worked out for the TwoTrees TTC450 Pro preset and kept under its 800 mm/min top speed. They're the numbers Cut Studio suggests when you pick the bit and material.
| Material | ⅛″ 2-flute end mill |
|---|---|
| Softwoodpine, spruce, fir | 800 mm/min* 3,703 rpm · 1.51 mm per pass |
| Hardwoodsoft maple, cherry, walnut | 800 mm/min* 4,878 rpm · 1.51 mm per pass |
| Plywoodbaltic birch, birch plywood, cabinet plywood | 800 mm/min* 4,000 rpm · 1.51 mm per pass |
| MDF / particle boardmdf, hdf, particle board | 800 mm/min* 3,333 rpm · 1.51 mm per pass |
| Acrylicacrylic, cast acrylic, plexiglass | 700 mm/min 5,000 rpm · 1.27 mm per pass |
Chiploads come from bit makers' published ranges (Onsrud, Amana Tool, Whiteside), kept at the gentle end for hobby machines. * The machine's top speed holds the feed here, so the spindle is slowed to keep the chips thick. Every machine and bit is a little different: listen for chatter on a test cut and adjust.
From box to first cut
Surfacecraft makes the G-code. A sender runs it: gSender or Universal Gcode Sender (both free), or Surfacecraft itself over USB with Pro.
-
01
Create a free account Open Cut Studio in your browser. Nothing to download.
-
02
Add your machine Pick the TwoTrees TTC450 Pro preset. Check the top speed against your manual.
-
03
Make a design Draw text and shapes or import an SVG. Give each shape a depth, a cut and a bit.
-
04
Check the 3D preview It's built from the real G-code, so what you see is what the bit will do.
-
05
Download and run Load the bit the file's header names, zero where it says, and run it in your sender.
TwoTrees TTC450 Pro test G-code
A first cut to check your machine before you design anything: a 40 × 30 mm pocket and a 40 × 30 mm outline, both 3 mm deep, with a ⅛″ 2-flute end mill in pine. Made by Cut Studio with the TwoTrees TTC450 Pro preset, at the softwood numbers in the table above, and it runs in about 3 minutes.
Clamp a piece of pine at least 100 × 60 × 6 mm. Zero X and Y on its front-left corner and Z on its top, then run the file in your sender.
A batch of name tags
Make one tag, copy it across a board and cut them all in one job with holding tabs. Small parts and a ⅛″ bit suit this machine, and the wide bed lets you do a lot at once.
TwoTrees TTC450 Pro software questions
TwoTrees lists VCarve, Fusion 360, Easel and Carveco Maker, and sells a VCarve Desktop bundle. The machine runs open-source GRBL and takes .nc and .gcode files, so Surfacecraft works too, free in your browser.
Because the TTC450 Pro's spec sheet gives a maximum engraving speed of 800 mm/min. Running within that keeps a 775 motor from stalling and your bits from breaking.
No. The Ultra has 100 mm of Z, a 500 W spindle and a 3,000 mm/min top speed. Pick the preset that matches your machine, because the safe feeds are very different.
Yes. Designing, toolpaths, the 3D preview and G-code export (5 files a day) are on the Free plan with no time limit. Pro adds unlimited exports, sending jobs straight to the machine, more machines, AI tools and commercial use.
Your TwoTrees TTC450 Pro is ready. Now it has software.
Design and G-code are free, with no time limit. Send to your machine over USB with Pro.