Teardrop log basket "Pisara"

thingiverse

Pisara, a handcrafted wooden basket for firewood logs, designed specifically for sauna or indoor fireplace use, measures 52 cm in height, 37 cm in width, and 28 cm in depth. Finnish designers Olli Niemitalo and Outi Lampela created this masterpiece under the Creative Commons Attribution license. Materials needed to bring Pisara to life include: 4 mm thick birch plywood with minimal knots, no surface treatment, measuring 960 mm x 560 mm, with top and bottom grain oriented parallel to the shorter side. A few cm of safety margin is recommended for a snug fit in your printer. Wood glue, polyvinyl acetate (PVA), wood glue, and natural fiber tape (cotton, linen, etc.) are also required. The tape should be 32 mm or 30 mm wide and 3 meters long. Sisal string or similar material, weighing approximately 50 g and measuring 13 m, is necessary for the handle. Choose a soft variety for a more comfortable grip. Heavy-duty cotton string for embroidery (light green is an excellent choice) will be used sparingly, as only about 1 meter is needed. A heavy-duty needle for embroidery must also be part of your toolkit. Print Settings: The Pisara20.pdf file is ready for printing on the laser cutter from Acrobat Reader. I utilized the Epilog Laser Fusion laser cutter at FabLab Oulu with these settings: Resolution: 600 dpi, Default settings: CO2, Job type: vector, Vector setting: Speed 5%, Power 100%, Freq 30%, and Power comp. enabled. The cutting time was approximately 32 minutes. Post-Printing: Begin by assembling the main plywood pieces on a flat surface, ensuring their bottoms are aligned. Follow the numbered instructions in the assembly image to complete the following steps: Set the main plywood pieces on a table so that their bottoms connect. Make sure they are not upside down, as this will affect the joint at the top when bent later. Glue the fabric tapes onto the sides of the top side of the main pieces, leaving an overhang of approximately 7 cm at each end and about 10 cm from the top of the plywood. Allow the glue to set for at least 10 minutes. Insert the round-ended strips into the holes of the main pieces, so that they come out on the same side as the fabric tape. Use force and ensure the strips are centered. Place the main pieces on top of the bottom piece, with the fabric tape sandwiched between them. Insert one end of a P-like support piece through the hole in the bottom piece and the round-ended strip. Repeat this process for the other P-like support piece. Insert both parts of a small locking piece through the hole in the P-like support piece. You may need to use force to squeeze the bottom and the round-ended strip together, making the hole visible. Repeat this step for the other bottom support piece. Turn the P-like support piece to insert its other end also through holes in the bottom piece and the round-ended strip. Trim to a nice length and glue the remaining ends of the fabric tapes to the plywood and to each other. Let the glue set for at least 10 minutes before removing the Pac-Man like assembly tools and continuing with the assembly. Insert the jagged square pieces into the holes near the center in the two parts of the handle already in place. Insert the piece with a large hole into the holes near the ends in the two parts of the handle already in place. Insert the remaining pieces of handle. Use the Domino-like pieces at the end of this step. Insert one end of the sisal string into the round hole in the handle and fish it out through the end using the hook tool. Make a knot about 15 cm from the end of the handle and pull the knot into the handle. Wrap the string around the handle tightly, asking someone to help you move the roll while wrapping. When you reach the round hole at the other end of the handle, cut it leaving a 15 cm overhang that you push through the round hole and fish out at the end of the handle using the hook tool. Push it back and forth through the holes in the domino piece and make a knot so that the domino piece is already very close to the handle. Push the dangling end of the string into the handle. Rotate the domino piece so that the string tightens and pulls the domino piece into the handle. Repeat this process at the other end of the handle. Do an embroidery that, together with the existing glue, attaches the end of the fabric tape firmly to the plywood using the four holes in the plywood. Designing Pisara: The design was created in OpenOffice.org draw. The teardrop shape was optimized for carrying maximum loads with minimal stress through simulation.