robodatech.CNC machines
Roboda G1 Spindle Kit
Welded-steel moving-gantry router kit, 900 x 600 x 180 mm, machined rail pads
₹138,000.00 excluding GST
Specification
| Platform | Roboda G1 |
|---|---|
| Head | spindle |
| Operations | milling, cutting, engraving |
| Materials | Wood (Production), Plastic (Production), Acrylic (Capable), Aluminium (Capable); not supported: Steel, Mild steel |
| Assembly time | about 16.1 hours |
| Lead time | 21 days |
| MRP incl. 18% GST | Rs 162,840.00 |
What this machine will and will not work
| Wood Production | This is the machine's production material and the envelope was chosen for it. Ply, MDF, pine, teak, rubberwood and hardwood all cut cleanly with compression, single-flute and downcut cutters at 14 000-20 000 rpm. The reference cut is a 12 mm two-flute compression cutter taking a full 12 mm slot through 18 mm ply at 3 200 mm/min - 691 200 mm3/min at 634 W, against 1 000 W available at 16 000 rpm and 99 N of tooth force against a 250 N budget. Both margins are real, which is what 'production' means here: the machine will do this all day rather than as a demonstration. Run the dust shoe and an extractor; the dust is the hazard, not the cut. |
|---|---|
| Plastic Production | Delrin, nylon, HDPE, ABS, polycarbonate sheet and PVC foam board machine very well at 12 000-18 000 rpm with a single-flute O-flute and a high chip load. The rule is chip load, not speed: too fine a chip melts the plastic and welds it behind the cutter, and this head's constant-torque characteristic means slowing down does not buy you anything. Run dry with the air blast. Do not mill solid PVC sheet - mechanically it cuts fine, but the dust and any local heating release hydrogen chloride and this machine has no fume extraction. |
| Acrylic Capable | Cast acrylic profiles and engraves cleanly with a single-flute O-flute at 14 000-18 000 rpm and a deliberately coarse 0.12 mm chip load, finishing with a climb pass and the air blast on. Extruded acrylic melts behind the cutter unless the feed stays high, and any acrylic crazes if flood-cooled, which is one more reason this machine has an air blast and not a coolant pump. The class is 'capable' rather than 'production' because a polished edge takes tuning per sheet and per supplier, not because the machine struggles. |
| Aluminium Capable | Real aluminium work, within a stated ceiling. 6061, 6082 and cast tooling plate with an 8 mm three-flute carbide at 12 000 rpm, 2 mm radial by 6 mm axial, 0.04 mm per tooth, 1 440 mm/min, air blast, adaptive or trochoidal toolpaths. That is 216 N of tooth force against a 250 N budget and 0.597 N.m of spindle torque against a 211 N equivalent - so the cut is limited by the head, not the frame, and doubling the depth trips the VFD or breaks the cutter rather than bending the machine. At 3 365 N/mm of static stiffness the full 250 N budget is 0.074 mm of tool-tip deflection, which is what decides how the parts come out. Treat the sizing cut as a **roughing** cut, leave 0.3 mm on the wall, finish at half the radial engagement and follow with a spring pass at the same depth. Roughed only, expect about +/- 0.10 mm on a wall; with the finishing and spring pass, about +/- 0.05 mm. Expect brackets, plates, motor mounts, spacers and face plates in 5-20 mm stock, and expect to plan the toolpath rather than hog a slot. The class is 'capable' and not 'production' because a batch of aluminium parts on this machine is a slow batch. |
| Steel Not supported | Not supported, and no setting changes that. Steel at a 0.03 mm chip needs roughly 2 000 N/mm2 of specific cutting force, about 2.2 times the aluminium figure this machine was sized against, and it needs real torque at 1 500-3 000 rpm. This head holds 0.597 N.m and does not run below 6 000 rpm, so it cannot deliver a steel chip load at a steel surface speed - it rubs instead of cutting, work-hardens the surface and destroys the cutter. The frame is not the objection here; the head is, and there is no spindle option on this platform that fixes it. Steel milling on a Roboda platform starts at RBK-E1. |
| Mild steel Not supported | Not supported, for the same torque and speed reasons as steel, plus one specific to hot-rolled mild steel: it carries an abrasive mill scale that a carbide cutter can only get under by taking a deep first pass, and a deep first pass is exactly what a 0.597 N.m spindle cannot make. Engraving or scribing mild steel with a diamond drag bit is mechanically possible because it removes no material, but that is not milling and it is not published as a capability of this variant. |
Full specification sheet, drawings and what is in the kit
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