Student Hands On Training Workshop (SHOT 2007) June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Gateway To Space ASEN / ASTR 2500 Class #09 T-46 Colorado Space Grant Consortium June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Today: - Soldering 101 - Next time – Rocket History (Maybe) - Grades – Next week - HW 05 – Kendra will have it ready Thur - Proposal update… - Will send Wednesday so you can review - Team meeting time - Hardware check out, HW 04, feedback June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Meeting Times: Soldering 101 - Rocket History (Maybe) - Proposal update… - Team meeting times June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Soldering 101 Colorado Space Grant Consortium June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Soldering: June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Caution: - Soldering is dangerous if not respected - Be mindful of where you are and where the soldering iron is - Eyes and liquid solder - Everyone is expected to solder - If you get burned… - Stay together, don’t work ahead June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) PCB – printed circuit boards Solder Pads Soldering Top View Side View Circuit Board Resistor June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Prep Step 4: Tinning the iron Tin the tip of the soldering iron by melting an inch or so of solder on the tip. The iron will now look shiny on the tip. Then wipe any excess solder on the golden sponge. Now place the iron back into the holder. Tinning your soldering iron in this manner will aid in future soldering. June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Prep Step 4: Tinning the iron (close-up) June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Soldering Iron June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Move soldering iron until tip is touching wire & solder pad June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Move solder to touch edge of tip. Solder June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hold until solder melts on tip by wire Solder June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Move solder back to touch wire only Solder June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Move solder in to form a small pocket Solder June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Move soldering iron tip up. This will drag solder up with it. Solder June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Look for shinny fillets June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Soldering Tips Make sure tip is hot Clean & tin tip Keep tip clean by using wet sponge and cloth Heat until the parts are hot enough to melt solder Hold until solder flashes around pad Do not put too much solder on June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) TIPS: workmanship.nasa.gov Use caution when clipping leads to avoid flinging metal across the room. All soldering must achieve a good solder filet on the pad as shown for circuit reliability. Also clip the leads in this fashion. Bend resistors and diodes using your plastic tool as shown. Example of a good solder filet June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Tinned Copper Traces Top View June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Soldered Top View Solder bridge shorting two traces - bad, bad, bad But, can be fixed by reheating or using solder sucker June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Board Safety: Caution: Many of the components used in this workshop are sensitive to electrostatic discharge (ESD). Please ensure that you are wearing your protective wrist strap at all times. There will be a warning slide when components are ESD and heat sensitive. Clipping leads can sometimes cause them to separate in a rapid manner that could cause injury. Please take caution when clipping leads. Wear your safety glasses at ALL TIMES! June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Reading a Resistor: The resistors in this workshop have already been organized by value. In the event that your resistors get mixed, please refer to the chart at the left to classify your resistors, or use your multimeter. If you are unsure, don’t hesitate to raise your hand and ask for assistance. June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Pre-Bending: Pre-Bending 101: Pre-bending is a technique that allows components to be easily inserted into a PCB. Pre-bending also allows components to lay more flush with the board. Bending components to the correct bend radius takes practice, but mastering the technique will reap rewarding benefits! June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Pre-Bending: Pre-Bending 101: Start with the bending and prodding tool in the position shown in the top picture. Choose a location along the length of the tool that will yield the appropriate bend radius. Use your thumb to bend the lead such that the component and lead are orthogonal. 90° June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering 14 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering - Get into your teams - Each person on the team will solder their own circuit - You and your team will have 50 minutes - Let me know when you are done 15 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Prep Step 1: Tool Layout Prepare tools for the construction process. Put on your safety glasses. June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Prep Step 2: Grounding Put on a static strap to remain grounded. Also make sure the strap is tight across your wrist. This will protect any parts from electro-static discharge (ESD) and its harmful effects. June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Prep Step 3: Soldering Station Turn on the soldering iron Set the temperature control on the soldering iron to a temperature less than 700 °F and greater than 450 °F. - As a general rule use a temperature in the range between 550 and 650 degrees Fahrenheit. June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Prep Step 3: Soldering Station June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Prep Step 4: Tinning the iron Tin the tip of the soldering iron by melting an inch or so of solder on the tip. The iron will now look shiny on the tip. Then wipe any excess solder on the golden sponge. Now place the iron back into the holder. Tinning your soldering iron in this manner will aid in future soldering. June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Prep Step 4: Tinning the iron (close-up) June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 1: Distribute solder kits among team You will have to share the soldering stations Help each other learn the techniques 16 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 2: Layout kit (Socket not shown) 17 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Voltmeter is very useful - June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Voltmeter 101: - This is the set up typically used June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Voltmeter 101: Use this setting to check resistor values - June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Voltmeter 101: Use this setting to check DC voltage - June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Voltmeter 101: Use this setting to check continuity - June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 3: Look at board, find reference point Install Side 18 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 3: Look at board, find reference point Solder Side 19 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 4: Flip board over and solder 8 pin socket Step 5: Install 555 timer. Small circle placed over pin hole “1” 20 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 6: Flip board over and bend chip leads out DO NOT SOLDER AT THIS TIME 21 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 7: Install 120 kΩ resistor (Brown, Red, Yellow) 22 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 8: Install 33 kΩ resistor (Orange, Orange, Orange) 23 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 9: Verify resistors 120 kΩ Brown, Red, Yellow 33 kΩ Orange, Orange, Orange 24 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 10: Flip board over Step 11: Solder Resistors 120 kΩ Brown, Red, Yellow 33 kΩ Orange, Orange, Orange 25 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 12: Inspect solder joints and trim leads 26 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 13: Flip board over and install capacitor Gray strip indicates “negative” lead “-” Lead 27 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 14: Verify capacitor is installed correctly “-” Lead 28 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 15: Flip over board and solder capacitor “-” Lead 29 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 16: Verify solder joint and clip leads 30 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 17: Install RED LED over 120 kΩ Resistor Negative side is facing edge of board Negative Lead 31 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 18: Install GREEN or YELLOW LED over 33 kΩ Resistor. Negative side is facing edge of chip Negative Lead 32 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 19: Flip board over and solder LED leads 33 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 20: Solder chip to board. Go slow Step 21: Verify solder joints and check for solder bridges 34 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 22: Install 9V battery clip to board 35 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 23: Flip board over and solder battery leads 36 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering Step 24: Attach test battery and watch what you made NOTE: If it doesn’t work, detach battery immediately and have it inspected 40 June 14 - 16, 2007

Student Hands On Training Workshop (SHOT 2007) Hands-on: Soldering When completed, please wait for further instruction 38 June 14 - 16, 2007

Heaters ASEN / ASTR 2500 Colorado Space Grant Consortium

Today:

Environments at 30 km: - You need to do something to keep your systems warm - Colorado history has shown payloads (batteries) begin to fail below -5°C - Hand warmers don’t work well without air (O2) - You will use an active heater

Environments at 30 km: • BalloonSats can do real science at 100,000 feet • Discoveries can be made • Atmospheric studies can be done • Engineering challenges are extreme • Enough unknowns to catch the mind of students

Hands-on: Heater Circuit - Dry ice test results have been excellent

Hands-on: Heater Circuit Kit includes: 3 9 Volt batteries (for flight only) 1 Perf Board 3 Ceramic Resistors (4 Ω @ 5W) 3 9 V connectors 1 White wire 1 Blue wire 1 Red wire 1 Black wire 1 Switch 1 Female connector with red and black wire

Hands-on: Heater Circuit Set out kit

Hands-on: Heater Circuit Layout Resistors on Perf Board

Hands-on: Heater Circuit Layout Resistors on Perf Board Front Back

Hands-on: Heater Circuit Fold over the leads from two of the blocks and solder them together

Hands-on: Heater Circuit Snip the leads that you just soldered together

Hands-on: Heater Circuit Fold over the opposite two leads and solder so that all of the blocks are connected in parallel then clip the ends of the leads

Hands-on: Heater Circuit Solder resistors in series using leads of resistors 4Ω 4Ω 4Ω

Hands-on: Heater Circuit Twist all the Red wires from the 9V connector together and solder them to the single BLUE wire in your kit

Hands-on: Heater Circuit Twist all the Black wires from the 9V connector together and solder them to the single black wire from the female connector

Hands-on: Heater Circuit Check continuity for all “-” and “+” terminals to each other

Hands-on: Heater Circuit Check continuity for all “+” terminals of the battery with the end of the single BLUE wire Check continuity for all “-” terminals of the battery with the end of the single BLACK wire

Hands-on: Heater Circuit Check continuity for all “-” terminals of the battery with the BLACK wire on the connector

Hands-on: Heater Circuit Put electrical tape on solder joints

Hands-on: Heater Circuit Solder the single BLUE wire from 9V connector to one end of the resistor string and the RED wire from the female connector to the other end of the resistor string 4Ω 4Ω 4Ω

Hands-on: Heater Circuit Connect the Switch (Black to Black, Red to Red)

Hands-on: Heater Circuit Final Product

Hands-on: Heater Circuit Attach 3 flight batteries and turn switch on. Your heater will get extremely hot with in 1 to 2 minutes. If it takes longer, please let me know.

Hands-on: Heater Circuit Turn switch off, disconnect the switch from the heater, leave batteries connected

Student Hands On Training Workshop (SHOT 2007) Questions? Colorado Space Grant Consortium June 14 - 16, 2007