Best Software for Automation Cell Layouts: RoughCAD vs AutoCAD, SolidWorks, and Simulation Tools

What is the best software for early-stage automation cell layouts?

For applications engineers developing automation concepts, robot cell layouts, or RFQ-stage proposals, RoughCAD is a practical starting point when the goal is to develop and communicate a preliminary concept quickly.

AutoCAD supports traditional 2D drafting, and SolidWorks supports detailed mechanical design and 3D assemblies. Visual Components can support 3D manufacturing simulation. FANUC ROBOGUIDE and ABB RobotStudio are options for robot-specific simulation and programming.

The right choice depends on the decision and the deliverable. RoughCAD was developed to help engineers establish and communicate a preliminary concept before investing in detailed design or simulation.

The problem with starting every automation concept in detailed CAD

I've worked in custom industrial automation applications and estimating for over 13 years, using both AutoCAD and SolidWorks to develop concepts for customer quotations.

AutoCAD is useful because it allows you to work from a top-down view. For preliminary automation layouts, this is often the most useful perspective. You can establish equipment locations, examine material flow, and work through the general arrangement of a cell without worrying about every mechanical detail.

SolidWorks brings something different. A good 3D model has a definite presentation advantage, particularly when working with sales teams or customers who want to visualize the finished equipment.

But neither approach is necessarily ideal for every early-stage RFQ.

Detailed modeling takes time. When you're trying to establish whether an automation concept makes sense commercially and technically, that time can become a problem.

There's also a less obvious consequence: the more engineering effort you put into a concept, the harder it can become to abandon it.

You might have several possible approaches to a process, but once you've spent significant time developing one in CAD, it's tempting to keep refining that design instead of reconsidering the alternatives.

At the quotation stage, flexibility can be more valuable than detail.

Why top-down 2D layouts still make sense for automation engineering

Not every automation concept needs to begin as a 3D model.

For many projects, a top-down layout can communicate most of the information needed for an initial engineering discussion:

• Overall cell footprint and equipment arrangement
• Robot locations and preliminary reach envelopes
• Material flow and process sequence
• Conveyors, machines, fixtures, and transfer points
• Guarding, safety devices, and operator access
• Space constraints and major layout assumptions

These are the details that help an applications engineer evaluate whether a concept is worth pursuing.

A preliminary layout can also help communicate the maturity of a concept. Label assumptions and make clear that reach envelopes are not motion validation and equipment outlines are not completed mechanical designs.

Where RoughCAD fits into the process

RoughCAD is browser-based automation layout software built specifically for early-stage concepts, RFQ development, and proposal-stage engineering.

Rather than starting with general-purpose drawing tools or building detailed equipment assemblies, engineers can work with a library of automation-specific components, including industrial robots, conveyors, machines, guarding, and other equipment.

The workflow is centered on developing a top-down layout, checking approximate robot reach and spatial constraints, and adding the dimensions, notes, and callouts needed to communicate the concept.

This is particularly useful when the engineering work involves answering questions such as:

• Can this equipment arrangement fit within the available floor space?
• Which robot models are worth considering based on preliminary reach?
• How should material move through the proposed cell?
• Would a different machine or robot arrangement make more sense?
• How can I present several possible solutions to a customer without extensively modeling each one?

RoughCAD does not replace detailed mechanical CAD or robot simulation. Its value is in helping engineers make preliminary decisions before those tools are needed.

A real example: developing six competing automation concepts

On one project, a customer wanted to review five or six different concepts for accomplishing the same automation task.

In my traditional SolidWorks workflow, developing those alternatives would have meant creating multiple separate CAD concepts. That represents a substantial commitment of engineering time before the customer has even selected a direction.

Using RoughCAD, I could develop and revise the alternative arrangements much more quickly.

That let me focus on comparing potential solutions and getting concepts in front of the customer before committing extensive effort to any one design.

RoughCAD vs AutoCAD vs SolidWorks vs Visual Components

These tools solve different problems, and there is overlap between some of their capabilities.

For a preliminary automation layout, RoughCAD is one place to begin. Existing models, team experience, and the decisions the project needs to support may make another tool a better fit.

If you need to design the fixture, validate detailed robot motions, or produce manufacturing drawings, you should use the corresponding engineering software.

The question isn't which package has the most capabilities. It's which package is appropriate for the work you need to complete right now.

When should you move from RoughCAD to 3D CAD or simulation?

There are several situations where moving into more detailed engineering early is justified.

Complex robot reach or motion. A preliminary reach envelope is useful for identifying possible robot candidates, but it cannot confirm that the robot can reach every required position with the necessary tool orientation while avoiding interference. Those questions may require dedicated robot simulation.

Cycle-time risk. If robot motion, equipment interactions, or process timing could determine whether a concept meets the required production rate, a more detailed analysis or simulation may be needed before quoting.

Fixture and tooling development. When the proposed solution depends on custom fixtures, complex tooling, or detailed mechanical interfaces, SolidWorks or another mechanical CAD package is the appropriate tool.

Customer presentation requirements. Some customers and sales situations benefit significantly from a 3D model. That presentation value can justify the additional effort, even when detailed design is not yet required.

Projects likely to advance quickly. If you're confident a project will move into detailed design and already have suitable CAD models or reference assemblies, starting in SolidWorks may avoid duplicating work later.

RoughCAD is not intended to eliminate these engineering activities. It is intended to avoid doing them prematurely.

Choosing the right workflow for your next automation RFQ

For a typical applications-engineering quotation, a sensible workflow is to start with the minimum engineering required to establish a credible concept.

Identify the customer requirements, understand the proposed process, establish equipment envelopes, and develop a preliminary arrangement.

Use RoughCAD to explore the layout, compare alternative concepts, communicate the proposed material flow, and screen potential robot selections using approximate reach information.

Then identify which technical assumptions still need validation.

If the concept depends on difficult robot motions, challenging cycle times, or complex mechanical interfaces, invest in the appropriate simulation or detailed CAD work.

If those risks are manageable at the preliminary stage, you may already have enough information to support the layout portion of a ROM quotation or initial proposal.

The goal is not to avoid engineering. It's to apply the right amount of engineering at the right stage.

Try RoughCAD for your next automation concept

Try the RoughCAD demo to explore a preliminary automation layout.

Brian Booth is an applications engineer with more than 13 years of experience in custom industrial automation, applications engineering, and estimating. He developed RoughCAD to address the gap between preliminary automation concepts and detailed engineering CAD.