3 Axis Digital Readout DRO Fo. R Milling Lathe Machine And Precision Linear Scales 5. How do i order a complete kits? A:Please choose 1pc 3 axis DRO. And and 3pcs scale to place an order, it will be a complete set kits. For explam, if I. Need 250mm, 300mm and 500mm travel scale. With display, then i need to choose”3 Axis DRODisplay Only”. Scale(Scale only) “, “300mm Linear scale. 500mm Linear scale (Scale only) to place an order, then we will send you a complete set 1pc 3axis dro with requested 3pcs scale as listing at the photos. (it need to pay 4pcs products total at least). This link is for a complete set, it will not sell a single product. Question:What is different 100mm and 120mm, 150mm and 170mm, 200mm and 220mm….. Answer: They are same scale, because it can read 20mm more. For example, 100mm can read to 120mm, 150mm can read to 170mm, and its total length is same. So we called it 100mm or 120mm, same linear scale. It is compete dro. Kits with parts to fit mounting. The linear scale has to be chosen from 50-1000mm travel length. = 140mm + travel length (L0). Clear 200 sets Sdm datum. Drilling of oblique line. Machining of inclined plane. Machining of circular arc. Rectangular lumen gradual processing. Radius/Diameter function (lathe machine). Z+Y sum (lathe machine). Voltage Range: AC 85V260V/50HZ60HZ. Display: 8 digits display. Input Signal: TTL square wave or EIA-442-A (option, need to pay extra). Input Signal frequency: 100KHZ. Operation Keyboard: pressure sensitive key pad. 50mm, 100mm, 150mm, 200mm, 250mm, 300mm, 350mm, 400. 500mm, 550mm, 600mm, 650mm, 700mm, 750mm, 800mm, 850mm, 900mm, 950mm, 1000mm. Resolution : 5um (0.005mm) 0.0002. Signal : TTL square /wave EIA-442(option). Grating pitch: 0.02mm (50LP/min). Accuracy: ±0.005 mm or 0.0002 (at 20 deg C). Reference marks at every 50mm(option, need to pay extra). Response Speed: 60m/min or 40ins/Sec. We also supply scale length over 1000mm up to 3000mm. Please send a message to us for more details. 1 x 3 Axis DRO. Parts (same as follow photo). Please allow 0.5-1 inch difference due to manual measurement. The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding.