Rapid Prototyping — From Idea to a Working Prototype

“How many days to make a mold?” — a question asked as often as the quote itself, because in most projects time comes before money. The short answer: an aluminum mold is typically days to a few weeks, while a steel production mold is 8-12+ weeks. But “mold lead time” and “time to hold the first part in your hand” are different; in this article we explain all the steps and what determines the timeline. ...

The success of your injection part begins with choosing the right plastic, even before the mold. The wrong material = a part that breaks, flexes, wears out or is needlessly expensive. This guide compares the five main thermoplastics MARG works with — ABS, PP, PE, POM, PA — by function and answers the question “which one for which part.” Quick Decision Table Material Strength Best-suited part Watch out ABS Rigid, dimensionally stable, good surface, economical Box/enclosure, panel, cover, general structural Weak in UV/outdoor PP Flexible, fatigue- and chemical-resistant, hinge Lidded boxes, living hinge, containers, automotive Less rigid, hard to bond/paint PE Chemical resistance, low friction, tough Sealed containers, bumpers, low-load parts Low rigidity, hard to bond POM High rigidity, low friction, precise dimensions Gears, bearings, clips, sliding mechanisms Expensive, hard to bond, heat-sensitive PA (nylon) Tough, wear- and temperature-resistant Gears, load-bearing parts, wearing components Absorbs moisture (dimensions shift); abrasive if filled Selection by Function Box, enclosure, cover → ABS (or PC) Requires rigidity, dimensional stability and a good surface. ABS is economical and ideal; if impact/temperature is critical, PC (polycarbonate) or ABS+PC. (See Electronic Box/Enclosure Mold.) ...

If you are developing an electronic product, you need two parts: a working board (PCB) and a custom plastic enclosure that surrounds it. Most companies have these two made in separate places — and that is exactly where the trouble begins: when the board is designed in one place and the enclosure in another, the connector holes do not line up, the mounting points are off, and the lid will not close. MARG’s difference is this: we produce both the board and the enclosure under one roof, so the two are designed to fit each other from the very start. ...

How much does a plastic injection mold cost? It is the most frequently asked question, yet one most mold makers do not answer clearly. The short answer: aluminum prototype/low-volume molds are typically 500-2,000 USD, while steel production molds start from tens of thousands of USD depending on geometry. But what really matters is knowing what determines the price — in this article we explain it transparently. The 6 Factors That Determine Mold Price The bulk of mold cost is machining (CNC) time. That is why everything that determines the price actually comes down to the question “how long does it take to machine the mold?”: ...

An automatic filling system for a sherbet machine is a setup that fills the transparent reservoirs in the display (sherbet, juice, lemonade, ayran) automatically through level sensing, without staff filling them by hand. In this article we cover, in an accessible way, how such a system is installed, the level control board at its heart, and how the water + concentrate feed is managed. Important distinction: This is not a complete machine but a retrofit automatic filling system that attaches to your existing sherbet/dispenser machine. You do not need to replace the machine; it can be removed again whenever desired. Product details: Automatic Sherbet Filling System. ...

The value of a professional scent machine comes less from its ability to release scent than from releasing it at the right time and at the right intensity. The mechanism that makes this possible is the weekly program and the work/pause cycle on the control board. In this article we cover these two layers and the role of the real-time clock (RTC). Two-layer scheduling logic A well-designed scent board solves scheduling in two independent layers: ...

The most critical power component of a scent machine is the pump: it is the actuator that atomizes the fragrance oil or pushes it into the HVAC duct. The job of the control board is to switch this pump safely and reliably from the 220–240 V AC mains. In this article we cover relay selection, the power supply, the difference between resistive and inductive loads, and mains safety. Onboard AC-DC: why you don’t want an external adapter Control boards run on low-voltage DC (typically 5 V / 3.3 V), but the pump is at mains voltage. There are two approaches: ...

A scent machine control board is the electronic board that forms the brain of professional scent (aroma) machines. Its job, in one sentence: to manage mains power, run the pump at the right times and durations, and carry all of this out automatically according to a weekly program. In this article we cover what the board is, what components it consists of, and how it works, in a technical but accessible way. ...

Plastic prototyping with an aluminum mold is a method for obtaining parts from real injection plastic at a much lower cost and in a shorter time than a steel production mold. The short answer: if your quantity is below ~10,000, your material is non-abrasive (PP, ABS, PE, POM) and speed matters — an aluminum mold + desktop injection molding is almost always the right choice. In this article, we explain the decision with numbers. ...

Fast prototyping in custom machinery design means turning a production need that cannot be solved by standard machines into a working prototype in the shortest possible time, by uniting mechanics + electronics + software in a single project. The short answer: speed comes from running the three disciplines concurrently within one team, rather than splitting them across separate suppliers. In this article we explain why this approach is both faster and less risky. ...