Metal steam roller. Necessary tools. Parts list

Transcription

1 10.15 Metal steam roller Please Note The OPITEC range of projects is not intended as play toys for young children.they are teaching aids for young people learning the skills of Craft, Design and Technology.These projects should only be undertaken and tested with the guidance of a fully qualified adult. The finished projects are not suitable to give to children under years old. Some parts can be swallowed. Danger of suffocation! Parts list 1 x Aluminium sheet (1) 1.5 x 0ß x 10mm 1 x Aluminium rod () 1dia x 0mm 1 x Aluminium rod () dia x 5mm x Aluminium rod () 5mm x 1mm 1 x Aluminium section (5) 10 x 0 75mm 10 x Nuts () Mmm x Countersink set screws (7) M x 50mm x Domed nuts () M mm 1 x Flat section with long hole (10) 10 x 0mm 1 x Pine block (11) 0 x 0 x 0 mm x Brass tube (1) 5 x 0,5 x 5mm 1 x Brass tube (1) 5 x 0,5 x 5mm Necessary tools Pencil, ruler, centre finder + Try square Drills,mm, mm, mm diameter Centre punch Screw driver Allen key 7mm (M) Metal saw File Vice Pillar drill E1015#1 1

2 General: Before starting file away any burr from the edges of the metal pieces!!! 1. Mark out the pieces (,+) on the aluminium sheet as stated in the plan.use metal shears for cutting and clean up the edges Use a pencil and not a scriber when marking out on aluminium sheet, as this will make a groo ve in the metal making it prone to snapping.! Cutting plan. The front axle assembly can be made in two variations from aluminium () harder version. Variation (11) from flat sheet (10) simpler version Variation 1: l Part () as shown in the drawing, mark out bend and then dril The middle hole is countersunk on the inside up to 7mm! Note: To check the measurements use the wooden block provided! 5,0 1,0 1,0,0,0 1,0 Ø 7,0 Ver- sion : Make the axle hol- der (10) f r o m the flat metal as shown in the photo- graphs Mark out 15mm Use a pair of pliers or a vice to Use the wooden block to bend Finished axle bend the 90 degrees angle the second side of the axle holder bearing. Part () mark out according to the drawing and then drill the mm diameter holes 0,0 5,0 1,5 E1015#1

3 .Part () roof, mark out according to the drawing and drill countersink 5,0 1,5 Ø 7,0 0,0 5. The wheels () 0 x 1mm mark out the centres and drill the mm diameter holes Lightly countersink. Use vice soft jaws! Ø 5,0 1,0 x. Find and mark out exactly the middle of the roller (() 1dia x 0mm. Drill out with a mm diameter bit and lightly countersink the hole. Note: The hole in the roller is very deep. It must be placed in a machine vice and measured exactly with a try square. For best results drill from one side of the middle and then turn the roller over. Use protective vice jaws to stop marking the roller!! 0,0 Ø 1,0 7. Measure the middle of the chimney mm dia x 5mm and drill a hole.mm dia at 10mm deep Note! Place this piece in a machine vice checking its vertical position with a try square. MNow tap an M internal thread Note! Make sure that the thread tap is upright, make turns forward and one back to cut the metal swarf free. Use soft jaws in the machine vice! 5,0 Ø,0 Ø, E1015#1

4 . Cut the Motorblock ( and 5b ) from the aluminium section (5) 10 x 0 x 75 mm with an hacksaw. Note: Use vice jaws! 50,0 5,0,5 With part () 10 x 0 x 50mm file the corners at 5 degrees ( Or saw first then file) mark ou the holes, centre punch the frill mm dia. Drill the blind hole mm x.5mm deep The blind hoe is driled on the angled end! Rear axle carrier (5b) 10 x 0 x mm chamfer one end with a file as shown Finally mark out the holes and drill mm diameter Drill this part iin a machine vice to ensure that it is square. Use vice protectors! 9. Remove the burr from all the parts with a file then emery cloth smoot,0 5b Ø,0 10. Cut from the treaded rod (9) M x 150mm a piece mm long ( 9a front axle ) and 0mm ( 9b rear axle ) 11. Cut a countersink screw (7) to mm long and remove burr 1. Polish and varnish all the parts leave to dry D1015#1

5 1. Assembling the front axle and steering Take the countersink screw ( 7) insert from underneath the axle holder () add a nut Place the roller () in with the axle ( 9a) and a two domed nuts () check that the roller can rotate easily. Insert the axle holder machine screw up through the motorblock () screw on a nut, tighten so the axle holder can turn, now screw on the chimney from above ( Steering /) and tighten it so that it still allows the steering to move. 9a 7 1. Assembling the roof and and the rear axle carrier Insert in the roof ( ) using countersink screws (7) through the brass tubes ( 1 +1) Insert the front screw with shorter tube into the motor block () and the rear axle carrier (5b) and the floor pan () add the nuts and tighten the assembly b 15. assembling the rear wheels Place one wheel () on the rear axle (9b) fix with a domed nut Insert the axle through the carrier and add on the second wheel nut and domed nut, tighten in position Note! the finished axles should be able to turn freely! 9b E1015#1 5