Summary

Train model made in Project Lead The Way Intro to Engineering Design
I made this based on the parameters they provided, and take no credit for the design.
What you will need:
1x Train Body
4x Train Wheel
2x Linkage Arm
1x Train Hitch Spacer
--------- This is the "magnet" STL, as it is supposed to be a magnet.
4x Axle Peg
1x Hitch Peg
4x Linkage Peg
1x Train Stack
1x Cow Catcher

Print Settings

Printer Brand:

MakerBot

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>MakerBot Replicator</p></div></p>                                                                                <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>Yes</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>Doesn't Matter</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>.2mm</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>10% for Body, Stack, Wheel, Catcher, &amp; Spacer(Magnet). 50% or higher for all pegs and 50%for Linkage Arms</p></div></p>                                                        <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>Depending on printer, supports may be needed. But if put in the correct orientation, no parts should need them. </p></div>

PLTW IED Train Model