I have printed this quadraped and I am building it.

https://www.thingiverse.com/thing:989937

I am using these servos:

Tower Pro SG90S Micro Servos

https://www.amazon.com/dp/B00X7CJZWM/ref=sspa_dk_detail_0?psc=1&pd_rd_i=B00X7CJZWM&pd_rd_wg=ugnNi&pd_rd_r=9GPKNNPGQ9JC4WN5Z0C1&pd_rd_w=9ptUX

The voltage range is Operating voltage: 3.0V~7.2V . I was planning on using one of the these batteries...

https://www.ecrater.com.au/p/23321445/a-lion-74v-2s-1300mah-25c

This is the same type shipped with my Roli.

I believe this is all compatible.

Any pointers from the community when doing a walker and using frames?

I appreciate input.

Attached is my build so far...