Spitfire76's Build Log of FT Slow Stick 250S

Spitfire76

Well-known member
1706802601954.png


I've entered this build to the FTFC24: Build-ruary Build-off Challenge

Plans are free but I do believe that you need to be a member of the FTCA in order to download them.

BOMHave it ?Notes
Arrow ShaftKrypos 31in from Wallmart 19/64 inYes
MotorEmax MT1806 2280kvYes
ESC25ANo
Prop6 x 4.5No
Battery800No
Receiver?No
Servos x 25gNo
Control rod wire
Landing gear wire
Wheels3d printed ?

3dprinted partsPrintedNotes
esc holder
motorYesPETG
servo hold 3 channel
servo holder 4 channelneeds support
tail wire
tail
wing back
wing front
 
Last edited:

Spitfire76

Well-known member
The first problem that I ran into is that the arrow shaft I purchased was a bit too large for the holes in the 3d printed parts. I believe it was a 19/64 in shaft which measures 7.6 mm and the holes measure 7.25 or 9/32 in. So rather than tryomg to find the right size shaft I just made the holes larger using tinkercad. After some experimenting I found that 7.9mm seems to be the right diameter to set in tinkercad. The tricky one was the motor mount as that is at angle.

Since I only have the motor I figured I may as well just order the power A radial from the FT store.
 
Last edited:

Spitfire76

Well-known member
Build-ruary challenge day 14 of 29

Decided to change this in favor of the FT Long EZ but will keep this log open in case I resume this build at a later date.
 

arman4

New member
I am building this one as well. Walmart sells the arrow shafts you need. Childs arrow is that suggested part. I am currently waiting on the 3D printer parts. The plans call for an 1806 motor and 9 gram servos.

I built the long EZ with some modifications. An 1806 motor is what the original plans call for but I think a 250 motor or something in the 2200 series would work better. It is fast. Expo and a gyro would make it easier to control but the fun is getting up higher and messing around to learn the flight characteristic with and without the gyro.

I have flow a pusher version as well. I like that one better but you have to make sure your center of gravity is right on.
 

arman4

New member
So I got the parts printed. I was hesitant to buy a 3D printer as I had an Ender 3 in a box and long time before using it, to cut the story short I left it in the box past the warranty and low and behold something was wrong with the mother board and a few of the switches. Lesson learned.

I ordered the parts from a 3D print service and they were decent, however, for the costs of two sets I could buy the new Ender 3 KE which is a way better printer than I had.

The shaft diameter is supposed to fit 19/64 youth arrow shaft, however, no luck. I may drill the part but there is not enough material so I may use a dowel rod and sand it to fit. We shall see.
 

arman4

New member
Spitfire 76 a few questions is an 1806 motor enough for this build? Are the 5 gram servos enough torque for this build? Just curious.