best free 3d modeling software

{"title":"24VDC Dental Lab 3D Scanner 1.3 Million Pixels Camera Resolution STL File Output","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/22\/ff\/500fed3d7caf4e57590761eac880-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"Yucera","Model Number":"Dental laboratory 3D scanner","Minimum Order Quantity":"1 piece","Delivery Time":"15 days","Certification":"CE\/ISO","Place of Origin":"China","Payment Terms":"negotiation","Supply Ability":"20000pcs\/month","Packaging Details":"1 piece for one package","Size":"256mm*385mm*240mm","Output":"STL file","Light":"Blue Light","Color":"White","Camera Resolution:":"1.3 million pixels","Package":"Wooden case"}}