Caja calculadora Casio fx 991 Plus

Caja calculadora Casio fx 991 Plus

Sobre el modelo

Es una caja para transportar de forma segura tu calculadora CASIO fx-991 ES PLUS, sus instrucciones y un lápiz. También es compatible con otros modelos pero debes verificarlo (hay muchas del mismo tamaño, de todos modos puedes editarlo desde la configuración de Fusion 360).

Features

• Resistencia

• Orden

• Comodidad

• Estilo

• Flexibilidad

Impresión

• Material: PLA  o PETG para las partes rígidas, la funda que entra en contacto directo con la calculadora puede ser PLA o PETG pero recomiendo TPU (le da un toque extra de seguridad, al amortiguar impactos). Si tienes la oportunidad de remplazar el PLA o PETG por ABS o ASA sera mas resistente, te lo recomiendo

• Altura de capa: 0.2mm va bien, yo lo imprimí en 0.16mm porque queria mas calidad. También puedes usar la piel difusa de tu laminador para mejorar el acabado.

• Relleno: 8% esta bien, mas también. Queda a gusto personal.

• Paredes: 2 o 3. Queda a gusto personal. Únicamente la pieza llamada "Unión" debe no ser tan rígida.

• Soportes: No

• Balsa: Si, puedes tener problemas de warping (sobre todo con ABS/ASA). Tiene algunas partes que son muy propensas.

• Nozzle: 0.4mm

• Orientación de impresión: Eje x para reducir VFA.

Esos son mis ajustes recomendados. Recuerda que subí el proyecto de ORCA que tiene la configuracion que use yo para una Ender 3V3 KE con PLA Helbot.

Dimensiones de la calculadora:

161.5mm x 81.5mm x 18mm (Puedes sacarlas del manual o de la caja).

Archivos incluidos:

• .STEP — Los puedes subir a un CAD o imprimirlos

• .F3D — Fusion 360

• .3MF — Proyecto de Orca Slicer para Ender 3V3 KE PLA Helbot

Estoy ansioso de ver como aprovechan los archivos CAD. Sientanse libres de subir remixes. Únicamente denme credito y no los vendan por favor. Hay mucho esfuerzo y conocimiento como para que me falten el respeto así.

Detalles de diseño:

Se diseñó usando Fusion 360. Además se tuvieron en cuenta factores como la inclinación para que ningún ángulo se mayor a 45°, espesores mínimos, ángulos de desmoldeo (para la parte interna), un bisagra que se traba en las posiciones de abierto y cerrado. A su vez hay una almohadilla que empuja la calculadora para que esta no rebote. La tapa esta inclinada para facilitar el acceso al interior de la caja. Se uso una traba que proporciona un cierre bastante hermético (es el mismo que usan muchos frascos de cocina) y fuerte. Sobre este último se puede ajustar para que sea más o menos "duro". Lo que sucede es que hay tres puntos que forman un triángulo (revisar el último sketch) y para cerrarla o abrirla la unión se debe estirar una cierta distancia, si es excesiva cuesta demasiado pero es mas rigida y viceversa. Modificando la cota Resistencia del apartado de configuración se puede regular esto. Cuanto más grande sea el numero mas facil de abrir y cerrar va a ser, originalmente esta en 4mm. Atención puede ser que falle alguna unión si lo modificas, no lo probe!!!

Instrucciones:

Se las debo chicos : ( Pronto las subire.

Feliz impresión. Estoy ansioso de ver sus creaciones!!!

Espero que lo disfruten. Fueron varias horas de diseño (21 el "Coso interno" y 11 la caja en si) y algunas centenas de gramos.

Casio fx-991 ES PLUS Calculator Case

About this model

A protective case designed to safely carry your CASIO fx-991 ES PLUS calculator, its instructions/manual, and a pencil.

It is also compatible with other calculator models, but please check the dimensions before printing. There are many calculators with very similar dimensions, and the case can be easily customized from the Fusion 360 parameters.

Key Features

• Protection — Helps protect the calculator during transportation.

• Organization — Keeps the calculator, manual, and pencil together.

• Comfort — Easy to carry and access.

• Customizable — Parametric Fusion 360 model allows you to adjust the dimensions.

• Durability — Designed with 3D printing constraints and mechanical resistance in mind.

Printing

• Material: PLA or PETG for the rigid parts.

• Calculator contact liner: PLA or PETG can be used, but I recommend TPU. It provides an extra layer of protection by absorbing impacts and reducing direct contact between the calculator and the case.

• Alternative materials: ABS or ASA can be used instead of PLA/PETG if you want better heat resistance and overall durability.

• Layer height: 0.20 mm works well. I printed mine at 0.16 mm because I wanted a higher-quality finish.

• Surface finish: You can use the fuzzy skin setting in your slicer if you want to improve the surface finish.

• Infill: 8% is enough, but you can use more if you prefer.

• Walls: 2–3 walls. This is mostly a personal preference. The part named "Union" should not be made excessively rigid.

• Supports: No supports required.

• Brim: Recommended. Some areas are prone to warping, especially when printing with ABS/ASA.

• Nozzle: 0.4 mm.

• Print orientation: X axis recommended to reduce the visibility of VFA.

These are my recommended settings, but feel free to adjust them according to your printer and material.

I have also included the OrcaSlicer project with the settings I used on my Creality Ender 3 V3 KE with Helbot PLA.

Calculator dimensions

The case was designed around the following calculator dimensions:

161.5 × 81.5 × 18 mm

You can find these dimensions in the calculator's manual or packaging.

If your calculator has different dimensions, you can adjust the model using the parameters included in the Fusion 360 file.

Included files

• .STEP — CAD files that can be imported into most CAD software and modified.

• .F3D — Original Fusion 360 parametric project.

• .3MF — OrcaSlicer project with the printing configuration used for the Ender 3 V3 KE and Helbot PLA.

• STL files — Ready-to-print parts.

I'm really looking forward to seeing what you can do with the CAD files!

Feel free to create and publish your own remixes. Please remember to give credit to the original design and follow the license terms below.

Design details

The entire project was designed using Fusion 360, taking several factors into account to make the model reliable and printable.

Some of the design considerations include:

• Keeping overhangs below approximately 45° whenever possible.

• Appropriate minimum wall thicknesses.

• Draft angles for the internal parts.

• A hinge that locks into both the open and closed positions.

• An internal pad that pushes against the calculator to prevent it from bouncing inside the case.

• An angled lid that makes it easier to access the inside of the case.

• A strong and relatively airtight locking mechanism inspired by the type of closure commonly used on kitchen jars.

Adjustable locking mechanism

The locking mechanism can be adjusted to make it easier or harder to open and close.

The mechanism works through three contact points forming a triangle. When opening or closing the case, the joint has to stretch by a certain distance.

The greater this distance, the more rigid the closure becomes, but the more force is required to open and close it.

In the Fusion 360 parameters, this can be adjusted using the "Resistencia" (Resistance) parameter.

The default value is 4 mm.

Important: Increasing this value makes the mechanism easier to open and close, but I have not tested every possible value. Changing it too much may cause one of the joints to fail.

Instructions

I owe you guys some instructions! 😅

I'll upload them soon.

License

This model is published under the:

Creative Commons — Attribution — Non-Commercial — ShareAlike 4.0 International (CC BY-NC-SA 4.0)

You are free to:

• Share — Copy and redistribute the model.

• Adapt — Remix, modify, and build upon the model.

Under these conditions:

• Attribution — Give appropriate credit to the original author.

• Non-Commercial — Do not use the model or derivative works for commercial purposes.

• ShareAlike — Publish derivative works under the same license.

Please give credit to the original model when publishing a remix and, whenever possible, link back to this Printables project.

Show me your print!

If you print this model, I'd love to see it!

Feel free to upload photos of your print or share your remix. I'm especially interested in seeing how other people modify and improve the design.

Happy printing! 🖨

I hope you enjoy it. It took several hours of design work (21 for the "Coso interno" and 11 for the box itself) and a few hundred grams of material.