Recent content by srn

Hello, i.materialise writes: I scaled my impeller accordingly and got a good result. For the shaft I made the hole smaller then needed and drilled it afterwards to the right size including screw thread.

I have a 3D printed steel impeller. Ordered it at i.materialise.com There you can upload your file and instantly get a price. The print quality is impressive

I thought the boost has an Torqstar 3 7050. Is it an inrunner on your pic of the boost motor ?

Pitch is 60mm. My biggest issue is the sealing of service hatches. Do you guys have good solutions for that ?

how about your water inlet ? My prop is 60mm. This could be too small :idea:

I was not surfing on it at full throttle yet. When I sit down on it, it is more like a submarine and cannot accelerate :confused: My nozzle has 50mm at the end. How about yours ?

Did some water tests. Two major problems: 1. Sealing of my polycarbonate glasses is not good. Had water in my board, thats why I had to stop testing. 2. I am too heavy :oops: In my design phase I thought that it will produce enough lift when accelerating. So I designed 100l of volume. The...

I did some progress and now only wait for vacation to do some water tests. I especially modified my batteries. Now running on 48 pcs 20700 liion cells, 12S4P. Each parallel pack with own 60A BMS. I also build a power distribution board, where I put in all battery packs and charger (for...

hello guys, i am still testing in my small pool. now my remote control is working fine. Also the new propeller is doing a very good job. here my current MGM log. I wonder that I have really small power consumption at 10.000 rpm. At the moment I limited the MGM to 10k rpm for testing. Will try...

I ordered a 62x62mm. They said that it will shrink 2-3% after thermal treatment and finally I got a 60.5 x 60.5 impeller. It is ~95€.

Hello toto, the pitch is 60mm or equal to D if you scale it. I have not balanced it yet.

I ordered a 62x62mm. They said that it will shrink 2-3% after thermal treatment and finally I got a 60.5 x 60.5 impeller. It is ~95€.

Hello, i changed my carbon impeller to a 3D-printed steel impeller. It is really impressive quality and less vibration. today I will make first measurements of power consumption. Will provide results later.

Hello toto44, good video, looks like a lot of thrust for this small motor. Do you have a log of motor/esc power during this run ?

I already reduced voltage to 8S which did not make any difference. The MGM controller is tracking the "input current" and the "peak current". I thought that the Battery to ESC current is the "input current" ?? This one is very stable so if I am right, there is currently no need of capacitors or...