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<\/a><\/p>\nThe frames come as a kit, with\u00a0PDB and XT60 connector. There is a diagram for reference and instructions on how to put it together. I highly recommend watching the video from Francis Marasigan\u00a0(the frame designer) \u00a0–\u00a0https:\/\/www.youtube.com\/watch?v=2lF0xLPDilI<\/a>. It contains techniques and tips that will help avoid the major pitfalls.<\/p>\n Out of the box, the plate and parts might appear\u00a0a bit bendy, but assembled,\u00a0with the included stiffeners, the frame\u00a0is\u00a0very sturdy, as stiff as any 4mm I’ve handled.<\/p>\n I completed the X140 first. The X190 afterwards felt much easier.<\/p>\n Common on both:<\/p>\n X140:<\/p>\n X190:<\/p>\n Sigan frames do not leave a lot of free space inside, especially the\u00a0X140. ESC bigger than\u00a0LB20A will likely not fit the arms. Expect to\u00a0cut the motor wires and weave them around the support column in front\u00a0of each motor.\u00a0The kit includes a PDB and XT60 connector that solders on the PDB directly and is\u00a0well covered and protected by the frame. The PDB barely has room for shortly trimmed ESC wires and an RX module. This\u00a0is the most challenging part of the build.<\/p>\n I\u00a0soldered two\u00a0JST 1.25mm 2 Pin Micro connectors to the PDB – one for the FC VBAT, the other for the FPV pod. Alternatively these can be soldered to the ESC power cables too.<\/p>\n Flight controller access requires a center-placed USB port. There isn’t much room inside, so an FC without bulky ports and\u00a0with built-in step-down is recommended. The RMRC Dodo is a great choice for F3, tho I managed to fit SPRacing F3, ripping the UART1 and I2C1 connectors from the bottom. Headers will not fit, so the rest of the wires will have to be soldered in.\u00a0The SPRF3 requires 5V, I managed to fit a small Polulu near one of the ESCs.<\/p>\n FrSky XSR will fit (barely) under the FC, on top of the PDB. Spektrum diversity receiver will also fit if taken out of the box. The Furious Mini RX fits easy but requires electrical isolation (tape or heat-shrink)<\/p>\n The FPV pod fits a standard HS1177\u00a0type camera. A small VTX will do\u00a0best, TBS Unify is a good choice, especially\u00a0as it already has a dongle, the ET600 also fits fine. I really like the pod\u00a0design, it is easy to remove and 100% interchangeable between the builds. To\u00a0keep it modular, I used a single micro JST connector with LiPo voltage connecting the pod with the base.\u00a0Additional wires for OSD are just\u00a0not practical, hence I chose the HS1190 camera with built-in OSD. However with\u00a0careful hands, there is a little room in the pod for a 12v step-down, race transponder or even a micro OSD\u00a0that only measures voltage.<\/p>\n Quick arm, motor-direction and failsafe test before putting the propellers. BLHeli_s sure makes the motors smooth. As a basic frame care, I also coated\u00a0carbon edges around the motors and the FPV pod with some CA glue – this will prevent splintering after hard crashes.<\/p>\n First impression – both fly fast, so fast! I credit the camera placement – high and back, and the aggressive tilt. I tried flying the micro in my yard, I was barely able to contain it, it feels much\u00a0faster than my Shrieker<\/a> despite having\u00a0the same propulsion. Getting used to the camera required some practice on both quads and I am still adjusting to the tilt, especially during landing.<\/p>\n Unrelated to the frame, the X190 suffered\u00a0troublesome first maidens. The first day it leaped\u00a0violently and uncontrollably a few seconds after arming (luckily no injuries, always maiden with a finger on the disarm switch). It turned out the FC gyro was faulty, producing random sharp spikes.\u00a0Day two\u00a0revealed ESC de-syncs every other flip on different motors. I was starting to regret my\u00a0XS20A choice. However flashing to BLHeli 14.8, keeping motor timing to medium, reducing starting power by half seems to have cured the problem entirely.<\/p>\n X190<\/p>\nParts\u00a0List<\/h2>\n
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Build<\/h2>\n
PDB, Motors, ESCs<\/h3>\n
<\/a> <\/a> <\/a><\/p>\nFlight Controller, Radio receiver<\/h3>\n
<\/a> <\/a><\/p>\nFPV Pod<\/h3>\n
Assembled and\u00a0flight ready<\/h2>\n
X140 – 196\u00a0grams AUW (all up weight, with propellers, without HD and LiPo)<\/h3>\n
<\/a>\u00a0<\/a>\u00a0<\/a> <\/a><\/p>\nX190\u00a0– 302\u00a0grams AUW (all up weight, with propellers, without HD and LiPo)<\/h3>\n
<\/a> <\/a> <\/a> <\/a><\/p>\nMaiden flights<\/h2>\n