Decimal Rods

prusaprinters

<p>*PLEASE READ NOTES BEFORE PRINTING!</p> <p>This is my take on a teaching aid that I loved as a kid. It is similar to a set of Cuisenaire rods that are used for math instruction. Each rod segment is a cubic centimeter.</p> <h3>Print Settings</h3> <p><strong>Printer:</strong></p> <p>Monoprice Maker Ultimate</p> <p class="detail-setting rafts"><strong>Rafts: </strong> <div><p>No</p></div> <p><strong>Supports:</strong></p> <p>No</p> <p class="detail-setting resolution"><strong>Resolution: </strong> <div><p>0.2 (or 0.1 for box)</p></div> <p><strong>Infill:</strong></p> <p>20-30%</p> <p><br/> <p class="detail-setting notes"><strong>Notes: </strong></p> </p><div><p>PLEASE READ!</p> The rods can be printed as-is, but the box and cover will need to be slightly scaled up in the X and Y directions so that the rods are not too tightly held in the tray. I used a value of 100.5%, but even that was a little tight. I would suggest printing out the 10 centimeter rod first to use as a test and then print the scaled box to see how it fits in both directions. This also means that the box cover will need to be scaled to fit your scaled box but it's okay for that to be somewhat tight. (Sandpaper might be your friend here to get it just right) <p>There is a grid pattern in the floor of the box to allow the kids to position the rods to make patterns. When I printed it at 0.2mm resolution, the grid did not stick very well to the box. Some of the grid snapped off, but it was still very usable. If possible, try to print at a higher resolution to see if that helps the grid stick better as it will most likely be two print layers thick, instead of one. (If someone tries that, let me know if it really helps!)</p> <p>I added holes to the box design to allow the rods to be pushed out from the bottom if they are tight, but I have not printed this version. (Let me know how it turns out!)</p> </div></p></p> Category: Math