(28-Mar-2017, 12:19 AM)Nathaniel52441 Wrote: Any other opinions on Brushed FC's? I like the Nuke a lot but it's lacking a few features I want. If it's the best I can find I'll probably pull the trigger on it though.
Have you looked at Beef's Brushed Board? I've read people praising it, but it's on the pricey side for me.
Ah. Of course, part of the trick is to not drive a brushed motor that can't turn. From what I've read, that seems to be what often causes driver failure.
Well, the generic brushed version of the F3 EVO available from Banggood and other places say they handle up to 10A motor current, although I'm not aware of what the actual switch component rating is.
Some of the brushed AlienFlight and AlienFlightNG variants have 9.5A MOSFETs. The problem with going with one of those is having to build the board yourself or finding someone in the AW FC Fan Club group on Facebook to build one for you. The only commercially available F3/F4 AlienFlight board I'm aware of has just 5A outputs.
(28-Mar-2017, 01:05 PM)Helibus Wrote: Ah. Of course, part of the trick is to not drive a brushed motor that can't turn. From what I've read, that seems to be what often causes driver failure.
Well, the generic brushed version of the F3 EVO available from Banggood and other places say they handle up to 10A motor current, although I'm not aware of what the actual switch component rating is.
Some of the brushed AlienFlight and AlienFlightNG variants have 9.5A MOSFETs. The problem with going with one of those is having to build the board yourself or finding someone in the AW FC Fan Club group on Facebook to build one for you. The only commercially available F3/F4 AlienFlight board I'm aware of has just 5A outputs.
I just picked up an eachine evo f3 and a generic evo f3, we'll see how try preform. I ended up choosing the evo because it has the low voltage buzzer. Now I just need to choose at Tx, thinking I might go dsmx. Any good options on dsmx for around $100?
If you want to go the DSMX route, you can pick up the Devo 12e radio from UCDrone for the crazy price of $85 right now. Flash it with DeviationTX and you can do DSMX/DSM2 and a couple of other protocols for not a penny more. Add a 4-in-1 module from Banggood and you can use FrSky radios and fly just about most toy quads all from one radio.
The following 1 user Likes unseen's post:1 user Likes unseen's post • Helibus
(28-Mar-2017, 03:27 PM)unseen Wrote: If you want to go the DSMX route, you can pick up the Devo 12e radio from UCDrone for the crazy price of $85 right now. Flash it with DeviationTX and you can do DSMX/DSM2 and a couple of other protocols for not a penny more. Add a 4-in-1 module from Banggood and you can use FrSky radios and fly just about most toy quads all from one radio.
Wow that's an amazing price! Thanks for the tip on that I'm definitely going to pick one up!
28-Mar-2017, 04:18 PM (This post was last modified: 28-Mar-2017, 05:28 PM by Nathaniel52441.)
(28-Mar-2017, 03:27 PM)unseen Wrote: If you want to go the DSMX route, you can pick up the Devo 12e radio from UCDrone for the crazy price of $85 right now. Flash it with DeviationTX and you can do DSMX/DSM2 and a couple of other protocols for not a penny more. Add a 4-in-1 module from Banggood and you can use FrSky radios and fly just about most toy quads all from one radio.
Any good dsmx rx for micro quads? I've seen the lemon rx but that about it.
(Edit) I picked up a redcon r720x from banggood. Perfect combo of form factor and features. I keep forgetting that banggood has just about every quad part you need.
I figured you had already committed to the MMW motors when you mentioned 17kv. A lot of people are committed to motors from MMW, but I couldn't let myself fork out that amount of cash either. I'll share that so far I'm impressed with the Banggood Racerstar motors. I figured they were a mid-point between the typical low end motors and the MMW stupid fast ones, at less than half the cost of MMW, and providing longer flight time to boot. My 3d printed quad with the Racerstars has a surprising amount of zip. I haven't been able to go to full throttle - I'd lose orientation in LOS and possibly range from my low power VTX in FPV trying to take advantage of it. Unfortunately Banggood specs them at 53500RPM instead of a kv value. I assume you divide that RPM by the rated voltage of 3.7 and come up with 14.5kv.
I've built up the 2nd quad with the nano-QX type frame, minus the FPV gear. I put Spintech Sidewinders from Amazon on that, spec'd at 15.7kv, so another upper-middle range motor at about 2/3 the cost of a MMW set. A key difference here though is the Sidewinders come as a set of six instead of four. Unfortunately, very little run time with them so far. The weather here has been either wet or too windy for a brushed quad and I can't really open it up indoors.
With such a short expected lifetime on brushed motors, I figured I'd wear out the more affordable Racerstars and Sidewinders before my skill level would appreciate more expensive motors.
28-Mar-2017, 11:28 PM (This post was last modified: 28-Mar-2017, 11:34 PM by Nathaniel52441.)
(28-Mar-2017, 10:22 PM)Helibus Wrote: I ordered a Devo-12e as well.
I figured you had already committed to the MMW motors when you mentioned 17kv. A lot of people are committed to motors from MMW, but I couldn't let myself fork out that amount of cash either. I'll share that so far I'm impressed with the Banggood Racerstar motors. I figured they were a mid-point between the typical low end motors and the MMW stupid fast ones, at less than half the cost of MMW, and providing longer flight time to boot. My 3d printed quad with the Racerstars has a surprising amount of zip. I haven't been able to go to full throttle - I'd lose orientation in LOS and possibly range from my low power VTX in FPV trying to take advantage of it. Unfortunately Banggood specs them at 53500RPM instead of a kv value. I assume you divide that RPM by the rated voltage of 3.7 and come up with 14.5kv.
I've built up the 2nd quad with the nano-QX type frame, minus the FPV gear. I put Spintech Sidewinders from Amazon on that, spec'd at 15.7kv, so another upper-middle range motor at about 2/3 the cost of a MMW set. A key difference here though is the Sidewinders come as a set of six instead of four. Unfortunately, very little run time with them so far. The weather here has been either wet or too windy for a brushed quad and I can't really open it up indoors.
With such a short expected lifetime on brushed motors, I figured I'd wear out the more affordable Racerstars and Sidewinders before my skill level would appreciate more expensive motors.
I was at first because I thought I'd need that extra thrust for the bigger 120mm frame but I'll buy cheaper race stars to start with and if I really need them I'll get the mmw
Since you have the mi110 frame would you mind telling me if you think 66mm props would have good clearance with aio fpv, FC and rx ?
Keeping the weight of the quad to a minimum may be just as important as the motor. It adds up surprisingly fast. I read somewhere that the sweet spot on a micro with 8.5mm motors is below 55g AUW. I'm at about 58g with my 3d printed quad.
(28-Mar-2017, 11:42 PM)Helibus Wrote: Keeping the weight of the quad to a minimum may be just as important as the motor. It adds up surprisingly fast. I read somewhere that the sweet spot on a micro with 8.5mm motors is below 55g AUW. I'm at about 58g with my 3d printed quad.
I'm hoping to land somewhere around there all said and done but we'll see.
Did you see the prop question? I edited it in so I wasn't sure if you saw that before you replied
29-Mar-2017, 01:44 AM (This post was last modified: 29-Mar-2017, 02:49 AM by Helibus.)
No, I hadn't noticed the prop question. While I have the MI110 frame, I haven't done anything with it. I haven't even taken it out of the package. It would help if there were any sort of instructions for the frame; without that it's going to be pretty much an adhoc assembly, figuring out what fits where. Well, unless someone has posted helpful notes somewhere in the frame comments. Maybe tomorrow I'll take a photo of 66mm disks laying on the frame so you can get an idea.
For initial input, I think 66mm is going to be tight. One observation is that the motor mounts don't form a square. The side-to-side spacing is 75mm, and the front to rear is 80mm. The distance from the forward motor centers to the forward corners of the upper plate is in the 31 to 32mm ballpark. Clearance at the rear is a bit tighter - in the 30 to 31mm range. The standoffs for the upper plate are 15mm. For 66mm props to clear the upper plate with 20mm motors flush to the bottom of the frame grommets, the standoffs may have to be cut or replaced to something shorter, but that may lead to AIO issues. It's tough to gauge AIO clearance without trying to dry-fit everything onto the frame. My 15mm wide Boldclash F-01 used on the nano-QX like frame would fit, but anything over 16mm or so would require some thought/experimenting.
EDIT: In a nutshell, without actually building up a quad on the frame, I'd say the frame is more suited for props in the 55mm range, which is consistent with the Banggood description.
Took a few minutes to just get the image tonight. This might be crude, but it'll give you an idea on how 66mm props would look on the MI110 frame. I've circled the areas that are conflict concerns. The spacing between the forward legs on the upper plate is about 16mm, so most AIO blocks won't fit there. Looking at photos in the banggood comments, yeah it looks like people get creative in fitting things onto the frame.