18-Jun-2024, 02:56 PM
I'm obsessed with these 'lil buggers at the moment.
I just love how they turn on a dime and turn small spaces into serious rippage arenas (at scale of course!).
These are all 1S walksnail rigs, running different setups as I try to figure this scale out. It's winter here in AU and pretty bloody cold in Melbourne so these pushers are getting the most action.
From left to right:
Haven't built (small) whoops in ages and have been really impressed by the improvements from the motors to the frames. The ducts on the betafpv frames (65air, 65pro, 75air) are really freakin good, I'm super impressed as to how resilient they are. The motors are another thing, the speed and quality of them is crazy. Even the good old betafpv motors have come a long way. The 0702 dual bb are very smooth.
The rcinpower 0802 motors are tiny beasts. These things, I swear..... Gold/red is the 27000kV, pink/blue are the 25000kV variants. The are notchy as hell for such small motors.
On the lower kV motors(pictured) I tried using thicker gauge wire to try and dump more current. I also increased the gauge on the battery cable as well. This resulted in me smoking a 5A aio, it was one of my jhemcu gsf405 5A aios that are rare to get these days. So shit to that.
I've found the main advantages of the pusher config with CF frame as this scale is durability and tune. You can really up the PIDs to make it a dialed in setup. The ducts don't deform and the CF frame only has to deal with an AUW that is at most (including batt) 45g so it doesn't break.
The camera is exposed and I've killed one lens already. Thankfully I learned that the nano camera lens is a drop in for the lite camera lens so I was able to repair it easily enough. I might re-think the canopy setup on the whoops but I do love that style.
Being able to just whoop around at home, going fast through the garden beds, ripping down the driveway or hallways, lol. It's just so much fun. No large quads can turn as quickly as these things and whilst the top speed is nothing to really speak about the shear proximity to which one flys, and flys hard is where the excitement comes in. These things can pull off the feeling of going fast rather well.
To get the most out of it you need to strip the vtx down to the bare minimum. Here the 1s V3 vtx has been decased and the heatsink from the main soic removed as well. All the pusher configs require the FC to be mounted with the usb facing up as there is no access from underneath. This means the vtx is on the lower part of the stack. Good for durability but bad for airflow.
This setup really helps keep the vtx cool. The elrs antenna sticking out the front shows the orientation with the main soic getting some airflow. Both pushers are setup like this. The whoop has the vtx on top, with the soic facing up (see tree pic above).
Both pushers have an offset to them so the battery can fit between the ducts, level with the motors/props. Something about being aligned to the source of thrust I think, yeah I feel this is contributing to the handling. Makes for a tidy battery setup and is crash resistant (battery doesn't move!).
A lovely, aggressive stance.
I had issues with this betafpv 5A FC and a noisy gyro. Couldn't get it to fly smooth at all. Tried different BF builds all the way back to 4.3 and still no luck. Ended up installing quicksilver on this 35mm pusher and it runs very well.
Yes, plastic stack screws that are secured by the TPU battery holder - and it still flys a treat! Gotta love modern software on modern flight controllers. Amazing what shit they can account for!
Will post some video soon, trying different spots as I'm sure everyone is sick of my front yard, lol.
I just love how they turn on a dime and turn small spaces into serious rippage arenas (at scale of course!).
These are all 1S walksnail rigs, running different setups as I try to figure this scale out. It's winter here in AU and pretty bloody cold in Melbourne so these pushers are getting the most action.
From left to right:
- 31mm pusher on the nanofly16 CF frame. Betafpv 0702 30000kV motors using meteor65 air ducts. JHEMCU gsf405-bmi 5A aio (rare these days and $$).
- 40mm whoop on meteor75 air frame. Rcinpower 1102 22000kV motors. Betafpv 12A V3 aio.
- 35mm pusher on fractal75 CF frame. Rcinpower 0802 27000kV motors using meteor65 pro ducts. Betafpv 5A aio.
Haven't built (small) whoops in ages and have been really impressed by the improvements from the motors to the frames. The ducts on the betafpv frames (65air, 65pro, 75air) are really freakin good, I'm super impressed as to how resilient they are. The motors are another thing, the speed and quality of them is crazy. Even the good old betafpv motors have come a long way. The 0702 dual bb are very smooth.
The rcinpower 0802 motors are tiny beasts. These things, I swear..... Gold/red is the 27000kV, pink/blue are the 25000kV variants. The are notchy as hell for such small motors.
On the lower kV motors(pictured) I tried using thicker gauge wire to try and dump more current. I also increased the gauge on the battery cable as well. This resulted in me smoking a 5A aio, it was one of my jhemcu gsf405 5A aios that are rare to get these days. So shit to that.
I've found the main advantages of the pusher config with CF frame as this scale is durability and tune. You can really up the PIDs to make it a dialed in setup. The ducts don't deform and the CF frame only has to deal with an AUW that is at most (including batt) 45g so it doesn't break.
The camera is exposed and I've killed one lens already. Thankfully I learned that the nano camera lens is a drop in for the lite camera lens so I was able to repair it easily enough. I might re-think the canopy setup on the whoops but I do love that style.
Being able to just whoop around at home, going fast through the garden beds, ripping down the driveway or hallways, lol. It's just so much fun. No large quads can turn as quickly as these things and whilst the top speed is nothing to really speak about the shear proximity to which one flys, and flys hard is where the excitement comes in. These things can pull off the feeling of going fast rather well.
To get the most out of it you need to strip the vtx down to the bare minimum. Here the 1s V3 vtx has been decased and the heatsink from the main soic removed as well. All the pusher configs require the FC to be mounted with the usb facing up as there is no access from underneath. This means the vtx is on the lower part of the stack. Good for durability but bad for airflow.
This setup really helps keep the vtx cool. The elrs antenna sticking out the front shows the orientation with the main soic getting some airflow. Both pushers are setup like this. The whoop has the vtx on top, with the soic facing up (see tree pic above).
Both pushers have an offset to them so the battery can fit between the ducts, level with the motors/props. Something about being aligned to the source of thrust I think, yeah I feel this is contributing to the handling. Makes for a tidy battery setup and is crash resistant (battery doesn't move!).
A lovely, aggressive stance.
I had issues with this betafpv 5A FC and a noisy gyro. Couldn't get it to fly smooth at all. Tried different BF builds all the way back to 4.3 and still no luck. Ended up installing quicksilver on this 35mm pusher and it runs very well.
Yes, plastic stack screws that are secured by the TPU battery holder - and it still flys a treat! Gotta love modern software on modern flight controllers. Amazing what shit they can account for!
Will post some video soon, trying different spots as I'm sure everyone is sick of my front yard, lol.