The dominant technology in hard rock mining is drilling and blasting; therefore. the importance of fragment size estimation is an essential problem in the mining industry. By using a theoretical foundation that explains rock-fracturing mechanisms by blasting. a 3D fragmentation model with general applicability was developed. https://www.hindigyanvishv.com/deal-time-Universal-Steering-Wheel-Control-Input-Interface-APUNISW2-hot-grab/