VARIOUS WAYS OF TIMING NORMAL TIMING - BLOCK. NORMAL TIMING - STAGGERED. DAISY CHAIN - STAGGERED. REVERSE TIMING - BLOCK. REVERSE TIMING - STAGGERED.

NORMAL TIMING BLOCK PATTERN

NORMAL TIMING - BLOCK PATTERN FREE FACE DIRECTION OF BLAST

NORMAL TIMING - BLOCK PATTERN FREE FACE DIRECTION OF BLAST

NORMAL TIMING - BLOCK PATTERN FREE FACE DIRECTION OF BLAST

ADVANTAGES CONSISTENT BURNING FRONT SEQUENTIAL FIRING. GREATER THROW OF THE ROCK. IMPROVED ADVANCE PER BLAST. FINER FRAGMENTATION.

DISADVANTAGES DAMAGE TO SUPPORT CAN BE MORE SEVERE WITH INACCURATE DRILLING.

NORMAL TIMING STAGGERED PATTERN

NORMAL TIMING - STAGGERED PATTERN FREE FACE DIRECTION OF BLAST

NORMAL TIMING - STAGGERED PATTERN FREE FACE DIRECTION OF BLAST

NORMAL TIMING - STAGGERED PATTERN FREE FACE DIRECTION OF BLAST

DISADVANTAGES BLASTING TOWARDS HANGWALL. CREATING MORE DAMAGE TO THE HANGWALL. INCREASING PROBABILITY OF FOG’S.

DAISY CHAIN TIMING STAGGERED PATTERN

TIMING DONE IN DAISYCHAIN FREE FACE 2 4 6 8 1 3 5 7 9 DIRECTION OF BLAST

TIMING DONE IN DAISYCHAIN FREE FACE 2 4 6 8 1 3 5 7 9 DIRECTION OF BLAST

TIMING DONE IN DAISYCHAIN FREE FACE DIRECTION OF BLAST

TIMING DONE IN DAISYCHAIN BROKEN SHOCKTUBE FREE FACE DIRECTION OF BLAST

DISADVANTAGES RISK OF MISFIRES/CUT-OFF’S.

REVERSE TIMING BLOCK PATTERN

REVERSE TIMING - BLOCK PATTERN HEAVE OF ROCK DIRECTION 2 3 4 5 6 FREE FACE 1 2 3 4 5 DIRECTION OF BLAST

REVERSE TIMING - BLOCK PATTERN FREE FACE 2 3 4 5 6 1 2 3 4 5 DIRECTION OF BLAST

REVERSE TIMING - BLOCK PATTERN FREE FACE DIRECTION OF BLAST

REVERSE TIMING - BLOCK PATTERN FREE FACE DIRECTION OF BLAST

REVERSE TIMING - BLOCK PATTERN BROKEN SHOCKTUBE FREE FACE DIRECTION OF BLAST

REVERSE TIMING - BLOCK PATTERN 19 CONNECTION 18 17 18 17 16 DIRECTION OF BLAST

ADVANTAGES THROW OF ROCK TOWARDS FOOTWALL. REDUCING DAMAGE TO HANGWALL.

INCORRECT DRILLING METHOD WITH HANDIDETS Gully Stick Side Backfill

DISADVANTAGES THROW OF ROCK TOWARDS SUPPORT. SEVERELY DAMAGES SUPPORT. CLEANING OPERATIONS DIFFICULT. CONTAMINATES BACK AREAS.

CORRECT DRILLING METHOD WITH HANDIDETS Stick Side Backfill

ADVANTAGES THROW OF ROCK TOWARDS GULLY. MINIMUM DAMAGE TO SUPPORT. LESS CONTAMINATION TO BACK AREAS. IMPROVED CLEANING OPERATIONS.

REVERSE TIMING STAGGERED PATTERN

REVERSE TIMING - STAGGERED PATTERN FREE FACE 1 2 3 4 5 1 2 3 4 DIRECTION OF BLAST

REVERSE TIMING - STAGGERED PATTERN FREE FACE DIRECTION OF BLAST

REVERSE TIMING - STAGGERED PATTERN FREE FACE DIRECTION OF BLAST

ADVANTAGES THROW OF ROCK TOWARDS FOOTWALL. REDUCING DAMAGE TO HANGWALL.

DISADVANTAGES DRILLING DISCIPLINE MUST BE MAINTAINED TO ENSURE PROPER BLASTING ASSOCIATED WITH THIS TIMING.

How to time the heading with HANDIDETS® COLOURS INDICATE HOW TO CONNECT INDIVIDUAL HANDIDETS HANDIDET TRUNKLINE FROM GULLY

How to time the heading with HANDIDETS® COLOURS INDICATE HOW TO CONNECT INDIVIDUAL HANDIDETS HANDIDET TRUNKLINE FROM GULLY

CONNECTION OF FOOTWALL LIFTING IN GULLY WITH HANDIDETS® THIS IS A 6m HANDIDET TRUNK LINE (EXTENDER) TO THE HEADING OR TOE OF PANEL THIS IS THE MASTERSTARTER CONNECTED TO THE FIRST HANDIDET 1 2 3 4 5

FREE FACE DIRECTION OF BLAST REVERSE TIMING - BLOCK PATTERN WITH PRE-CONDITIONING in Slow Motion FREE FACE Assume to be three meters Assume to be three meters Blue Line - Extenders with HandiMasters Yellow Line - HandiMasters Orange Blocks - HandiMaster Blocks 200m/s delay DIRECTION OF BLAST

FREE FACE DIRECTION OF BLAST REVERSE TIMING - BLOCK PATTERN WITH PRE-CONDITIONING in Fast Mode FREE FACE Assume to be three meters Assume to be three meters Blue Line - Extenders with HandiMasters Yellow Line - HandiMasters Orange Blocks - HandiMaster Blocks 200m/s delay DIRECTION OF BLAST

REVERSE TIMING - BLOCK PATTERN WITH FREE FACE Blue Line - Extenders Yellow Line - HandiMasters Orange Blocks - HandiMaster Blocks 200m/s delay Red Holes - Production Holes Blue Holes - Pre Conditioning Holes REVERSE TIMING - BLOCK PATTERN WITH PRE-CONDITIONING in 3D

REVERSE TIMING - BLOCK PATTERN WITH PRE-CONDITIONING in 3D Fast Mode FREE FACE Blue Line - Extenders Yellow Line - HandiMasters Orange Blocks - HandiMaster Blocks 200m/s delay Red Holes - Production Holes Blue Holes - Pre Conditioning Holes

REVERSE TIMING - BLOCK PATTERN WITH PRE-CONDITIONING in 3D Slow Mode FREE FACE Blue Line - Extenders Yellow Line - HandiMasters Orange Blocks - HandiMaster Blocks 200m/s delay Red Holes - Production Holes Blue Holes - Pre Conditioning Holes

DO’S AND DON'TS DO NOT CONNECT HANDIMASTER BLOCKS CLOSER THAN 10CM TO EACH OTHER. CLIP THE HANDIMASTER BLOCK 90° TO THE TUBING TO ENSURE PROPER CONTACT. DAISY CHAIN TIMING NOT RECOMMENDED.

DO’S AND DON'TS DO NOT LET THE BURNING PART OF A FUSE TOUCH THE TUBING AS IT WILL MELT IT AND WILL CAUSE MISFIRES/CUT-OFF’S. DO NOT INSERT MORE THAN THE MAXIMUM RECOMMENDED NUMBER OF TUBES IN A HANDIMASTER™ BLOCK.

DO’S AND DON'TS ALWAYS USE SUFFICIENT LENGTHS OF SHOCK TUBE FOR THE SPECIFIC APPLICATION. ALWAYS INITIATE SHOCK TUBE BY USING A DETONATOR (NONEL‡ FUSE MASTERSTARTER®) OR DETONATING CORD.

DO’S AND DON'TS DO NOT REVERSE PRIME WITH SHOCK TUBES. DO NOT USE THE DETONATOR TO MAKE A HOLE INTO A CARTRIDGE EXPLOSIVE FOR PRIMING PURPOSES. DO NOT TRY AN PULL OUT A MISFIRED UNIT OUT OF CHARGED HOLE.