K3lso Quadruped (Build thread)

raess · September 11, 2020, 11:03pm

Just a quick render in nature

igor_X · September 23, 2020, 9:40am

Hey @raess, how is it going?

You haven’t posted your progress for some time Hope everything is OK…

cbenson · September 23, 2020, 11:50am

It’s fairly obvious what happened to his robot dog… it evolved and…

igor_X · September 23, 2020, 12:36pm

HAHAHAH

raess · September 23, 2020, 1:06pm

@cbenson @igor_X Nope I am still here

ATM I am doing alot of CAD for new BLDC version. Finding diffrent needed parts etc. wating for actuators.
I just started 3D Printing parts to confirm, Before order milling!

cbenson · September 23, 2020, 1:28pm

Side note, since your latest has NVIDIA on the side (Jeston), interesting to see them purchase ARM: https://www.engadget.com/nvidia-arm-acquisition-softbank-000846113.html

raess · September 24, 2020, 12:43pm

Yeah thats indeed interesting!

Started printing to verify design

Working on leg design

raess · September 30, 2020, 1:08pm

Just got this small 4channel canbus M.2 board from PEAK.

Motors are arriving on Friday

igor_X · September 30, 2020, 1:31pm

Be careful with ESD

raess · September 30, 2020, 1:34pm

I am always careful
The board did not fit nicely in the NX. Hopefully it will fit better in my UP Xtreme. which has a better 2280 slot

raess · September 30, 2020, 1:40pm

CAD is moving along.
MAX battery size will be a Tattu 22000mAh 6S* 22.2V 25C LiPO in the lower comportment.

cbenson · September 30, 2020, 1:48pm

Pun intended?

raess · October 1, 2020, 7:48pm

Nah no pun intended. Maybe only my bad English

raess · October 2, 2020, 12:40pm

So toys arrived:

Design evaluation before milling:

Working on a CAN splitter.

Going back and forth on the decision if you use a daisy chain canbus or a star-topology

igor_X · October 2, 2020, 1:02pm

Lucky you

raess · October 4, 2020, 11:25pm

The lineup

raess · October 6, 2020, 4:41pm

Having major problems with 3 of 12 motors (completely unusable). That’s a bit disappointed. Haven’t got any feedback from Tmotor yet and also waiting for software so I haven’t had chance to test them yet.

cbenson · October 6, 2020, 4:47pm

So same conditions and same electronics, and 3 out of 12 don’t work? As you alluded to, normally T-Motor quality is way up there with the best… Their service is normally very good too, so not much to worry about there.

raess · October 6, 2020, 5:01pm

Yeah. That was my impression of tmotor also. But the conditions of the 3 motors is so bad. (means they have done zero QC) if they have just pulled the output shaft a bit they would have catch this problem easy. Since they all makes some horrible noises!

I asked for the R-link software several times and got some other software (Sscom) Which is not working with this motors.

So I don’t know if any of the 12 is working yet as I can’t test them until I get software and some documentation.

And please be clear that I am not talking ■■■■ about tmotor (yet) I hope they have a good solution for to solve this problem since they are a bit pricey… but this project will be paused until I have solution.

raess · October 6, 2020, 9:35pm

Playing with the thought of adding ears and eyes! Still under design! Give me your thoughts!