group() {
	group() {
		difference() {
			cube(size = [100, 100, 100], center = true);
			group() {
				multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
					group() {
						multmatrix([[1, 0, 0, 50], [0, 1, 0, 50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
								group() {
									render(convexity = 2) {
										difference() {
											cube(size = [20, 20, 150], center = true);
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 0], [0, 0, 0, 1]]) {
												cylinder($fn = 0, $fa = 12, $fs = 2, h = 80, r1 = 10, r2 = 10, center = true);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, -40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
										}
									}
								}
							}
						}
						multmatrix([[1, 0, 0, -50], [0, 1, 0, 50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							multmatrix([[0, -1, 0, 0], [1, 0, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
								group() {
									render(convexity = 2) {
										difference() {
											cube(size = [20, 20, 150], center = true);
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 0], [0, 0, 0, 1]]) {
												cylinder($fn = 0, $fa = 12, $fs = 2, h = 80, r1 = 10, r2 = 10, center = true);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, -40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
										}
									}
								}
							}
						}
						multmatrix([[1, 0, 0, -50], [0, 1, 0, -50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							multmatrix([[-1, 0, 0, 0], [0, -1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
								group() {
									render(convexity = 2) {
										difference() {
											cube(size = [20, 20, 150], center = true);
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 0], [0, 0, 0, 1]]) {
												cylinder($fn = 0, $fa = 12, $fs = 2, h = 80, r1 = 10, r2 = 10, center = true);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, -40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
										}
									}
								}
							}
						}
						multmatrix([[1, 0, 0, 50], [0, 1, 0, -50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							multmatrix([[0, 1, 0, 0], [-1, 0, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
								group() {
									render(convexity = 2) {
										difference() {
											cube(size = [20, 20, 150], center = true);
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 0], [0, 0, 0, 1]]) {
												cylinder($fn = 0, $fa = 12, $fs = 2, h = 80, r1 = 10, r2 = 10, center = true);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, -40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
										}
									}
								}
							}
						}
					}
				}
				multmatrix([[1, 0, 0, 0], [0, 0, -1, 0], [0, 1, 0, 0], [0, 0, 0, 1]]) {
					group() {
						multmatrix([[1, 0, 0, 50], [0, 1, 0, 50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
								group() {
									render(convexity = 2) {
										difference() {
											cube(size = [20, 20, 150], center = true);
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 0], [0, 0, 0, 1]]) {
												cylinder($fn = 0, $fa = 12, $fs = 2, h = 80, r1 = 10, r2 = 10, center = true);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, -40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
										}
									}
								}
							}
						}
						multmatrix([[1, 0, 0, -50], [0, 1, 0, 50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							multmatrix([[0, -1, 0, 0], [1, 0, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
								group() {
									render(convexity = 2) {
										difference() {
											cube(size = [20, 20, 150], center = true);
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 0], [0, 0, 0, 1]]) {
												cylinder($fn = 0, $fa = 12, $fs = 2, h = 80, r1 = 10, r2 = 10, center = true);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, -40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
										}
									}
								}
							}
						}
						multmatrix([[1, 0, 0, -50], [0, 1, 0, -50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							multmatrix([[-1, 0, 0, 0], [0, -1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
								group() {
									render(convexity = 2) {
										difference() {
											cube(size = [20, 20, 150], center = true);
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 0], [0, 0, 0, 1]]) {
												cylinder($fn = 0, $fa = 12, $fs = 2, h = 80, r1 = 10, r2 = 10, center = true);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, -40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
										}
									}
								}
							}
						}
						multmatrix([[1, 0, 0, 50], [0, 1, 0, -50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							multmatrix([[0, 1, 0, 0], [-1, 0, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
								group() {
									render(convexity = 2) {
										difference() {
											cube(size = [20, 20, 150], center = true);
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 0], [0, 0, 0, 1]]) {
												cylinder($fn = 0, $fa = 12, $fs = 2, h = 80, r1 = 10, r2 = 10, center = true);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, -40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
										}
									}
								}
							}
						}
					}
				}
				multmatrix([[0, 0, 1, 0], [0, 1, 0, 0], [-1, 0, 0, 0], [0, 0, 0, 1]]) {
					group() {
						multmatrix([[1, 0, 0, 50], [0, 1, 0, 50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
								group() {
									render(convexity = 2) {
										difference() {
											cube(size = [20, 20, 150], center = true);
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 0], [0, 0, 0, 1]]) {
												cylinder($fn = 0, $fa = 12, $fs = 2, h = 80, r1 = 10, r2 = 10, center = true);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, -40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
										}
									}
								}
							}
						}
						multmatrix([[1, 0, 0, -50], [0, 1, 0, 50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							multmatrix([[0, -1, 0, 0], [1, 0, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
								group() {
									render(convexity = 2) {
										difference() {
											cube(size = [20, 20, 150], center = true);
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 0], [0, 0, 0, 1]]) {
												cylinder($fn = 0, $fa = 12, $fs = 2, h = 80, r1 = 10, r2 = 10, center = true);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, -40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
										}
									}
								}
							}
						}
						multmatrix([[1, 0, 0, -50], [0, 1, 0, -50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							multmatrix([[-1, 0, 0, 0], [0, -1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
								group() {
									render(convexity = 2) {
										difference() {
											cube(size = [20, 20, 150], center = true);
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 0], [0, 0, 0, 1]]) {
												cylinder($fn = 0, $fa = 12, $fs = 2, h = 80, r1 = 10, r2 = 10, center = true);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, -40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
										}
									}
								}
							}
						}
						multmatrix([[1, 0, 0, 50], [0, 1, 0, -50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							multmatrix([[0, 1, 0, 0], [-1, 0, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
								group() {
									render(convexity = 2) {
										difference() {
											cube(size = [20, 20, 150], center = true);
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 0], [0, 0, 0, 1]]) {
												cylinder($fn = 0, $fa = 12, $fs = 2, h = 80, r1 = 10, r2 = 10, center = true);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, 40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
											multmatrix([[1, 0, 0, -10], [0, 1, 0, -10], [0, 0, 1, -40], [0, 0, 0, 1]]) {
												sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
											}
										}
									}
								}
							}
						}
					}
				}
			}
			group() {
				multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
					multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
						multmatrix([[1, 0, 0, 0], [0, 1, 0, -50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							group() {
								multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
							}
						}
					}
				}
				multmatrix([[0, -1, 0, 0], [1, 0, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
					multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
						multmatrix([[1, 0, 0, 0], [0, 1, 0, -50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							group() {
								multmatrix([[1, 0, 0, -20], [0, 1, 0, 0], [0, 0, 1, -20], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
								multmatrix([[1, 0, 0, 20], [0, 1, 0, 0], [0, 0, 1, 20], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
							}
						}
					}
				}
				multmatrix([[-1, 0, 0, 0], [0, -1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
					multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
						multmatrix([[1, 0, 0, 0], [0, 1, 0, -50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							group() {
								multmatrix([[1, 0, 0, -20], [0, 1, 0, 0], [0, 0, 1, -25], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
								multmatrix([[1, 0, 0, -20], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
								multmatrix([[1, 0, 0, -20], [0, 1, 0, 0], [0, 0, 1, 25], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
								multmatrix([[1, 0, 0, 20], [0, 1, 0, 0], [0, 0, 1, -25], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
								multmatrix([[1, 0, 0, 20], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
								multmatrix([[1, 0, 0, 20], [0, 1, 0, 0], [0, 0, 1, 25], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
							}
						}
					}
				}
				multmatrix([[0, 1, 0, 0], [-1, 0, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
					multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
						multmatrix([[1, 0, 0, 0], [0, 1, 0, -50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							group() {
								multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
								multmatrix([[1, 0, 0, -25], [0, 1, 0, 0], [0, 0, 1, -25], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
								multmatrix([[1, 0, 0, 25], [0, 1, 0, 0], [0, 0, 1, -25], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
								multmatrix([[1, 0, 0, -25], [0, 1, 0, 0], [0, 0, 1, 25], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
								multmatrix([[1, 0, 0, 25], [0, 1, 0, 0], [0, 0, 1, 25], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
							}
						}
					}
				}
				multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
					multmatrix([[1, 0, 0, 0], [0, 0, -1, 0], [0, 1, 0, 0], [0, 0, 0, 1]]) {
						multmatrix([[1, 0, 0, 0], [0, 1, 0, -50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							group() {
								multmatrix([[1, 0, 0, -25], [0, 1, 0, 0], [0, 0, 1, -25], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
								multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
								multmatrix([[1, 0, 0, 25], [0, 1, 0, 0], [0, 0, 1, 25], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
							}
						}
					}
				}
				multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
					multmatrix([[1, 0, 0, 0], [0, 0, 1, 0], [0, -1, 0, 0], [0, 0, 0, 1]]) {
						multmatrix([[1, 0, 0, 0], [0, 1, 0, -50], [0, 0, 1, 0], [0, 0, 0, 1]]) {
							group() {
								multmatrix([[1, 0, 0, -25], [0, 1, 0, 0], [0, 0, 1, -25], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
								multmatrix([[1, 0, 0, 25], [0, 1, 0, 0], [0, 0, 1, -25], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
								multmatrix([[1, 0, 0, -25], [0, 1, 0, 0], [0, 0, 1, 25], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
								multmatrix([[1, 0, 0, 25], [0, 1, 0, 0], [0, 0, 1, 25], [0, 0, 0, 1]]) {
									sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
								}
							}
						}
					}
				}
			}
		}
	}
}