BASIC AGRICULTURAL MECHANICS
BASIC AGRICULTURAL MECHANICS AGED 1403
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This 15 page Class Notes was uploaded by Makayla Powlowski DVM on Friday October 2, 2015. The Class Notes belongs to AGED 1403 at Arkansas State University taught by David Agnew in Fall. Since its upload, it has received 64 views. For similar materials see /class/217728/aged-1403-arkansas-state-university in Agriculture Education at Arkansas State University.
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Date Created: 10/02/15
Ag Mech 6 BASIC SKILLS IN HANDTOOL WOOOWOHKING For EXPLORATOHY VOCATIONAL AGRICULTURE in ARKANSAS UNIT OBJECTIVE AFter completion oF this unit the student should be able to identiFy and properly use hand tools The student should have a good understanding oF the saFety practices used in handtool woodworking This knowledge will be evidenced through demonstration and by scoring 85 on the unit test SPECIFIC OBJECTIVES AFter completion oF this unit the student should be able to 1 IdentiFy handtools used in woodworking 2 Distinguish between saFe and unsaFe handtool woodworking practices by answering trueFalse questions correctly 3 Match tools used in handtool woodworking to their correct deFiniticn 4 Read a rule 5 Select From a list correct ways to use a handsaw 5 Calculate board Feet 7 Name types 0F wood planes 8 Name types oF wood chisels S Select From a list common measuring and marking tools used in woodwork 10 Demonstrate the ability to complete skill block 82 Ag Mach 8 2 EXPLDHATOHY AGHICULTUHE HANDTUDL WUODWDHKING INFORMATION SHEET I Handtools used in woodworking Figure 1 II SaFety practices in handtcol woodworking A Hand tools should be adjusted properly beFone using B Cutting hand tools should be sharpened properly beFore using C The work area should be kept clean and Free oF loose items B When using the wood chisel always push the chisel away From you keeping both hands behind the cutting edge E All nails that have been driven in a board and are protruding should be pulled on bent beFore leaving your work area F Hand tools should be Free oF grease on oil G Never use the screw driver as a chisel H When cutting on wood be sure the piece being cut is secure I Use tools only For the purpose For which they wane intended J Do not thnow tools III DeFinition oF hand tools used in woodworking A Crosscut saw Saw used For sawing straight and diagonally across the grain B Hip saw Saw used For sawing with the grain C HaspTool used Fon dressing and shaping lumber D Hand plane Tool used For smoothing irregulan shapes rounding stock Fitting joints and For Fitting most types oF tool handles Ag Mach TYPES OF HANDTDDLS gt 1 Auger bit 2 Back saw 3 Canpenter39a brace S Coping saw 5 Combinatioa square 8 Steel tape 9 Bench rule 10 Framing square 11 Claw hammer 12 W008 chisel 13 Block plane 14 Carpenter s level I FIGURE 1 84 Ag Mach 6 4 INFORMATION SHEET E Compass or Keyhole saw Tool used For sawing curves F Chisel Tool used to out edges and joints in wood G Carpenter39s brace Used For turning such tools as wood auger bits twist drills screw driver bits countersinks and reamers H Screw driverTool used to tighten or loosen wood or metal screws d IV Correct prooedure in reading a rule Figure 2 A Note how the graduation lines on a rule are varied in length to Facilitate quick and accurate reading B The 1quot lines are longest the 12quot lines a little shorter and the 14quot lines still shorter etc C The smallest division on most rules used in woodworking is 116quot V Correct ways to use a handsaw A The handsaw should be sharp and in good condition B Grasp the handle oF the saw Firmly yet not tightly C Let the ForeFinger extend along the side oF the handle and not through the handle with the other Fingers NOTE This enables you to guide the saw more easily and accurately D Most sawing should be done at a 450 to 500 angle to the wood E To saw oFF a board clamp it in a vice or hold it Firmly on a table or sawhorse VI Fonmula Fon calculating board Feet N x T x W x L Board Feet 12 Number oF pieces Thickness in inches Width in inches Length in Feet F39ZZ ll Ag Mach 5 5 Graduations on a Rule Halves Quarters l l 1 339 39 139 W Eighths Sixteg t s ThirtySeconds V 39I39Iquot391quot TW Wu Graduations Applied to a Rule 14 34 I 38 58 I 78 1 f 9 1Tlf U8 316 716 111 15 16 I 1163951 9161316 tlf l IT 1H l lll I39IIIII Ill39l FIGURE 2 86 VII VIII IX INFORMATION SHEET Types oF wood planes A Jack plane C B Block plane Types oF wood Chisels A Tang B Socket Jointeh plane Ag Meoh Common measuring and marking tools used in woodworking A Folding rule B Extension Folding rule C Push pull pocket tape 0 Carpenter39s Framing square E Combination square 6 Ag Mach 6 7 EXPLORATDHY AGRICULTURE HANDTDOL WUUDWOHKING JOB 1 CDMPLETE SKILL BLOCK I Consumable supplies needed A 2quot x 4quot stock B Two 1quot screws No 10 FHB II Procedure A Mark oFF an 8quot piece oF stock using the combination square B Cut the board with the crosscut hand saw NOTE Be sure to allow For the width oF the kerF C Plane surFaces to 1quot thick and 3quot wide D Mark and cut slot Figure 1 FIGURE 1 16 1 u 1 34quot 3quot JL 1quot No 1D FHB l I l l 5 quot 6 C Dlt 34quot 34quot 34quot 34quot 1quot l 1quot AL 19 47 Ag Mach 8 8 EXPLORATDHY AGRICULTURE HANDTOOL WDDDWOHKING JOB 1 Mark slot with combination square according to dimensions 2 Cut the slot to depth on each side using a back saw 3 Finish the slot with a wood chisel Drill holes For screw 1 Lay out 4 screw holes and mark centers 2 Drill holes using proper size bits For shank and anchor holes 3 Countersink to the proper depth NOTE Do not drill completely through project Bore large holes 1 Lay out centers oF large holes to be bored with brace and bit 2 Select proper size bit 3 Bore holes to the proper depth NOTE Be careFul not to split out the project on the back side Drive the 2 screws in two oF the holes prepared For them Do not burr the screw slot NOTE Make sure the screw heads are Flush with the surFace oF the project Hand in completed skill block to instructor For credit Ag Mech S EXPLORATOHY AGHICULTUHE HANDTDDL WDDDWDHKING TEST 1 IdentiFy the Following tools used in handtool wood working by placing the number oF the tool beside the proper name a Block plane i Coping saw b Framing square j Carpenter39s Brace c Combination square k Steel tape d Handsaw 1 Folding rule e Back saw m Auger bit F Keyhole saw n Bench rule g Claw hammer o Wood chisel mh Carpenters level Etiifxf j5 90 Ag Mech 6 1D Distinguish between saFe and unsaFe handtool woodworking practices by circling quotTquot iF the Following statements are True and quotFquot iF they are False a Proper adjustments on handtools are not important b All cutting handtools should be properly sharpened beFore using c The working area should be kept clean and Free oF loose items d When using the wood chisel you should always push the chisel From you keeping both hands behind the cutting edge e BeFore leaving your work area be sure all nails that are driven in a board and are protruding are either pulled out or bent F Your handtools should have grease and oil on them while they are in use 9 It is permissible to use a screwdriver as a chisel h When cutting wood be sure the piece being cut is loose i Use tools only For the purpose For which they were intended j You may throw tools Match the Following handtools to their correct deFinition a Crosscut saw e Compass or Keyhole saw b Hip saw F Chisel c Hasp g Carpenter39s brace d Hand plane h Screw driver 1 Used For sawing curves 2 Tool used For smoothing irregular shapes rounding stock Fitting joints and For Fitting most types oF tool handles 3 Tool used to tighten or loosen wood or metal screws 4 Saw used For sawing with the grain 91 r s 3591 v V 7 Ag Mach 5 11 5 Tool used to out edges and joints in wood 5 Tool used For dressing and shaping lumbar 7 Used For turning such tools as wood auger bits twist drills and reamars screw driver bits oountarsinks 8 Saw used For sawing straight and diagonally across the grain Use the drawing below and at each point labled with a letter read the rule and give the correct measurement 0 d a a C e b d Select From the list below the correct ways to use a hand saw Place a quotXquot in the blank beFore those you have selected a The handsaw should be sharp when in use b Rusty handsaws out o Grasp the handle oF the saw Firmly d Most sawing should be done at a 900 angle to the wood a To saw oFF a board clamp it in a vice or hold it Firmly on a table or sawhorse Calculate the total board Feet in each oF the problems listed below a 1 piaca 1quot x 10quot x 1039 b 1 piaca 2quot x Bquot x 839 c 2 pieces 2quot x 4quot x 839 Name two types oF wood planes a V b 92 Ag Mach 6 12 Name two types oF wood Chisels a b Select From the Following list common measuring and marking tools used in woodworking Place an quotXquot in the blank beFore those you have selected a Combination square e Hammer b Jack plane F Folding nule c Push pull pocket tape g Carpenter s Framing square d Screw driver C 93 ig EXPLORATDHY AGRICULTURE HANDTUDL WOUDWDHKING ANSWERS TD TEST a 10 1 B b 13 J 15 c 3 k S d 9 l 4 e 2 m 1 F 5 n 14 9 11 o 12 h 7 a F F F b T g F c T h F d T 1 T e T J F a 8 a 1 b 4 F 5 c 5 g 7 d 2 h 3 a 34quot c 238quot 8 314quot b 1115quot d 2 12quot 8 C s a 83 board Feet b 8 board Feet 0 105 boahd Feet 94 Ag Mech 8 13 C gt0 zmn m I45 gt3lt din 0m djm mopwozwjmquot m Lmnr U wHUOK n L0wjdm1 m dmjm U monrmd mm C 99sgt9saz 8 15 Ag Mach ngsess Wart Agricultural Mechanics HANDTOOL WDDDWOHKING l id 9 95