Presentation on theme: "Fabrication of Fishtank Reservoir"— Presentation transcript:
1 Fabrication of Fishtank Reservoir living with the labFabrication of Fishtank ReservoirENGR 121
2 DISCLAIMER & USAGE living with the lab The content of this presentation is for informational purposes only and is intended only for students attending Louisiana Tech University.The author of this information does not make any claims as to the validity or accuracy of the information or methods presented.Any procedures demonstrated here are potentially dangerous and could result in injury or damage.Louisiana Tech University and the State of Louisiana, their officers, employees, agents or volunteers, are not liable or responsible for any injuries, illness, damage or losses which may result from your using the materials or ideas, or from your performing the experiments or procedures depicted in this presentation.If you do not agree, then do not view this content.The copyright label, the Louisiana Tech logo, and the “living with the lab” identifier should not be removed from this presentation.You may modify this work for your own purposes as long as attribution is clearly provided.
3 Milling Machine: Prepare Machine for Use living with the labMilling Machine: Prepare Machine for UseClean and inspect the machine. Inform your instructor if you find any potential damage. To clean, apply asmall amount of oil to the x-y table and vise surfaces, and wipe them down with a clean cloth. The oil willkeep the unpainted steel surfaces from rusting and will reduce wear on the moving surfaces of the vise.milling visexy table
4 Milling Machine: Operating Digital Readout (DRO) living with the labMilling Machine: Operating Digital Readout (DRO)Practice moving each handle back and forth with the machine turned off until you understand and feel comfortable with machine movements.digital readout (DRO) – used to monitor thex, y and z positions due to turning the 3 crank handlesz-directioncrank handle for z-translationof entire cutting head assemblyspindle handle for z-translationof spindle only (drill chuck only)(DOES NOT AFFECT DRO READOUT)z-directionMake sure lock bolt for x-directionstage is unlocked an turned upward so that it won’t interfere with table movement (or it could break off)y-directionx-directioncrank handlefor x-translationcrank handlefor y-translation
5 Milling Machine: Operation of Digital Readout (DRO) living with the labMilling Machine: Operation of Digital Readout (DRO)The z-direction readout on the DRO is used to tell you how deep you are drilling. The x- and y-direction readouts can help you accurately position the holes in the faceplate and the pump exit hole. Note that the crank handles for the x, y and z directions cause the DRO values to change, but the spindle handle does not influence DRO readout. To clear the x-reading on the DRO, press <clear> followed by <x>; do likewise for the y and z directions.clear button (the one being pushed)
6 Milling Machine: Safety Features and Operation living with the labMilling Machine: Safety Features and OperationWith the safety shield closed and your safety glasses on, practice turning the machine on and off (turn off with both the off button and the emergency stop). Practice changing the speed of the spindle.red off buttonemergency stop (hitthis button to quicklystop machine)green on buttonSafety Shield: Do not start machine if this shield is not in place. Be sure that there is adequate clearance between the bottom of this shield and the top of the milling vise before adjusting the crank handle for z-translation of the cutting head assembly.Spindle Speed Control: Use the speedsrecommended for each drilling operation
7 Loading Workpiece into Vise and Tool into Chuck living with the labLoading Workpiece into Vise and Tool into ChuckPlace the parallels into the vise followed by the workpiece. Then, use the vise handle to tighten the slide on the milling machine. Make sure the workpiece is securely clamped in the vise before beginning work.load drill bit or othertool into chuck andtighten with keynut for locking downx stage of x-y table (be careful not to move the y-stage if this nut is downward (make sure it’s pointing upward), or you could break off the nut.Don’t forget toRemove keyfrom chuck!vise handle
8 Safety Rules for Freshman Labs living with the labSafety Rules for Freshman LabsDo not operate any machine unless you havecompleted a hold harmless formbeen trained to operate the machinebeen authorized to do so by the instructor or lab monitorWhen using rotating equipment such as milling machines, drills and lathes,securely tie long hair back to remove the possibility of it falling below your facedo not wear loose clothingremove lanyards or jewelry hanging from your neck or wristWhen using power tools like milling machines, drills and lathes,clamp the workpiece in a vise or chuck before drilling or cuttingnever hold or restrain the workpiece with your handmake sure all safety guards are closed before powering up machinenever leave a running tool unattendedWhen working in the lab,always wear approved eye protectiontake common sense precautions & avoid “horse play”keep work area clean & organizednever use your own power toolsonly use lab facilities to complete activities required for ENGR 120, 121 and 122report damaged equipment, unsafe activities and accidents to the instructorDo not begin to fabricate your pump until you have carefully read the operating and safety instructions above and agree to operate the equipment in a responsible manner. You must sign the safety contract before beginning fabrication.
9 living with the labParts for Fish Tank3 inch segment of 1.5 inch diameter schedule 40 PVC pipe1.5 inch diameter schedule 40 PVC cap5 straight nylon barbed fittings4 for 3/16” ID tube (1/8” NPT male threads)1 for ¼” ID tube (1/8” NPT male threads)
10 PVC Parts and Glue living with the lab 3 inch PVC segment of 1.5 inch schedule 40 pipe1.5 inch capPVC cleanerPVC glue
11 Applying the Cleaner living with the lab Download “2_PVC_cleaning.wmv” video. Store video in the same directory as this presentation. Click on the picture to play video.
12 Applying the Glue living with the lab Download “2_PVCgluing.wmv” video. Store video in the same directory as this presentation. Click on the picture to play video.
13 Hole Locations tank inlet solenoid valve tank outlet solenoid valve living with the labHole Locationstank inletsolenoid valvetank outlet(to pump)solenoid valvetank drain
14 living with the labHole LocationsInstall tank drain a little lower than the other three upper fittings. The tank drain will set the water level in the tank. Since the other fittings are higher, you will be able to see the water from the pump and solenoid valves enter the tank.tank drain (connects to ¼ inch ID tubing)further from top of tank
15 Drill Holes Q bit NOTE: Use a speed of 40 for all drilling operations. living with the labDrill HolesQ bitNOTE: Use a speed of 40 for all drilling operations.Don’t tighten the assembly too tightly in the vise - the PVC may break!
16 Tapping Holes for Fittings (1/8 inch NPT tap) living with the labTapping Holes for Fittings (1/8 inch NPT tap)
17 Congratulations – You’re Done! living with the labCongratulations – You’re Done!