When it comes to flight efficiency, an important issues are the motors and ESC. You possibly can have the perfect flight controller, however the mind can’t fly with out muscle tissue. This assessment will intently study the Meps SZ2306 motors and Meps MINI SZ45A ESC. If you’re seeking to construct a brand new racing FPV quadcopter, this tandem is a superb possibility for an affordable value.
An FPV brushless motor has two important components: Stator (with a three-phase coil) and a rotor/bell (with the prop shaft and everlasting magnets). In case you don’t already know, the quantity 2306 represents the motor’s stator dimension. The primary 2 digits are the stator’s width, and the final two digits are the stator’s top. The second parameter of a brushless motor is the KV worth, outlined because the variety of revolutions per minute (RPM) that the rotor will flip when one volt is utilized to its terminals with none load (hooked up propeller). Increased KV choices are typically extra aggressive and power-hungry, whereas decrease KV choices are conservative and environment friendly. For instance, the 1750KV motor proven on this assessment on 4S (16.8v) has 29.400RPM or 43.100RPM on 6S (25.2V). The Meps SZ2306 motors can be found with KV1750, KV1950, and KV2450. Your alternative relies on your battery sort (4S/6S) and flying type (racing/freestyling/cruising).
As its title suggests, an Digital Pace Controller (ESC) controls the velocity of the brushless motor. It’s accountable for receiving alerts from the flight controller and changing them into motor instructions by adjusting the quantity of energy delivered to the motor’s coil. Using high-quality ESCs results in a dependable and easy flight expertise. The MEPS MINI SZ45 is rated for 45A with a 55A burst present. It’s appropriate for each 4S and 6S freestyle and long-range cruising builds.
Meps FPV components assessment
Disclosure: I acquired the motors and ESC as a part of a product assessment collaboration with MEPS. Though the components have been supplied free of charge, all opinions on this article stay my very own, and the sponsor on no account influenced me. The remainder of the equipment proven on this assessment have been bought and paid for on my own.
MepsKing is a comparatively new FPV accent supplier. I heard about them for the primary time in February 2023. At the moment, they’d solely two motor sorts (2306 and 2207) within the product portfolio. Now, two months later, additionally they have three sorts of flight controllers (F722 Analog, Digital, and Mini Digital) and two ESC boards (45A and 65A).
I like that their web site comprises numerous high-quality images, product presentation movies, detailed technical specs, and set up suggestions. Some business voices say that MEPS is one way or the other associated to T-Motor, a well-established UAV and gimbal brushless motor model.
My plan with this product assessment was to construct a 5″ racer drone, however sadly, the flight controller I ordered from AliExpress on Mar 31, 2023, continues to be not shipped out. I contacted the vendor, they usually mentioned they have been at the moment out of inventory, so I needed to wait just a few extra days which become months. Yesterday, I received an automatic message that my order was canceled and I’ll obtain a refund in a short while.
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Meps House SZ 2306 brushless motors
The Meps SZ 2306 motors are supposed for 5-inch FPV drone drones. There are three-speed variations: 1750KV (6S), 1950KV (6S), and 2450KV (4S). You possibly can select from 4 lovely colour choices: Orange, Cool gray, Fluorescent gray, and Cyan. Every motor comes with 5mm propeller nuts, a spare shaft screw, and two units of mounting screws (4xM3*7mm and 4xM3*10).
I do know that not that vital how the motor look, however these MEPS are lovely. The sunflower-like bells also needs to present good cooling of the coils.
The motors weigh about 32 grams and have 160mm lengthy wires. As wire size will not be vital between the ESC and motors by way of energy loss, I often don’t reduce them simply to look good on a selected body. If, sooner or later, I need to transplant the motors on a bigger body, I might have a difficulty with the shortened leads. You possibly can solder the motor wires to the ESC in random order and reverse rotation route from BetaFlight configurator if wanted.
Utilizing 6082 aluminum alloy and N52SH arc magnets improve effectivity and shorten motor response time, permitting the motor to run as easily as silk. MEPSKing claims that every motor is individually pre-factory examined to make sure high quality and reliability.
Product specs
| KV choices | 175019502450 |
| Shade choices | OrangeCool greyFluorescent greyCyan |
| Rated voltage (LIPO) | 6S |
| Idle/Peak Present | 1.3A/36.9A |
| Max energy | 910.9W |
| Inside resistance | 74mΩ |
| Configuration | 12N14P |
| Lead | 160mm/20AWG |
| Shaft Diameter | 5mm |
| Shaft Protruding Size | 12mm |
| Dimensions | 29.3*30mm |
| 32 grams |
2. Meps Mini House 45A 4in1 ESC
The House-Mini 45A 4in1 ESC board is available in a black cardboard field with the next equipment: an XT60 battery cable, 4 FC knowledge cables, a 470μ/35V capacitor, and two units of rubber grommets. No wiring guide was supplied.
It has a 20*20mm mounting sample and is appropriate for 3.5-5″ FPV drones. The board itself measures about 33.5*39.8mm and weighs virtually 10 grams. Its 6-pin connector has the next pinout: Telemetry, Present, ESC4, ESC3, ESC2, ESC1, BAT+, and GND. The massive battery pads have solder holes for the low ESR capacitor. Above, I discussed that you just go away the motor-ESC wires so long as you need. My suggestion for the battery cable is the alternative. The LIPO wire size have to be saved brief to keep away from damaging electrical elements attributable to voltage spiking. For those who run on 6s, I counsel changing the inventory capacitor with a 1000uF one.
The board makes use of Onsemi Excessive-end MOSFETs and is flashed with BLHeli_32 firmware.
When utilizing a 4-in-1 ESC and flight controller from completely different manufacturers, verifying the pinout earlier than connecting them is essential to stop potential injury to the elements. The Mini-House 45A ESC comes with 4 FC cables -two of them may be simply personalized in response to your wants.
Product specs
| Dimensions | 33.5*39.8mm |
| Mounting sample | 20*20mm/Φ4mm |
| Weight | 9.5g |
| Battery compatibility | 2-6S lipo enter |
| Low ESR capacitor | Sure, 470μ/35V |
| Max fixed present | 45 Amps |
| Peak present | 55 Amps |
| Present sensor | Sure |
| Firmware goal | BLHeli 32 |
Pricing, availability, and choices
As I discussed within the introduction a part of my assessment, MEPS is a comparatively new model, and its merchandise can be found solely on mepsking.com for now. The SZ2306 motors may be ordered for $21.90/pcs, and the MINI SZ45A ESC for US$99.90. Curiously the extra highly effective SPACE SZ60A ESC prices solely $69.90. For those who favor 2207 motors which have the next stator quantity for extra torque, you can even verify the MEPS SZ2207 for a similar value because the SZ2306.
