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Our free and fast tool will convert most 3D mesh or ITSP (ImageToSTL Project) model files to a standard STP (STEP-File) file that can then be edited further in most popular 3D editing packages such as Blender or 3D printed without any further processing. Our conversion tool can also batch convert multiple ITSP files; up to 25 files at a time can be converted.
To convert your ITSP file, click the Upload button above and select the file to convert. Once selected, the file will be converted to a STP file and will be ready for download shortly afterwards. For more information about the ITSP to STP conversion process, see the conversion information section below.
| Extension | ITSP |
| Full Name | ImageToSTL Project |
| Type | 3D Model |
| Mime Type | application/octet-stream |
| Format | Binary |
| Tools | ITSP Converters, 3D Model Voxelizer, Create ITSP Animation, ITSP Viewer |
The ITSP file format is a 3D file format used to store simple 2D image data in a way that allows it to be represented in 3D space through the use of extrusion. The format is the native format of the ImageToSTL 3D Model Designer application and was devised as a means to allow users with basic knowledge of 2D bitmap drawing and editing software to create complex 3D objects suitable for 3D printing.
An ITSP file consists of a main data file containing the position, rotation, and scale of a 2D object that is to be projected into 3D space. The objects are arranged into layers, with each layer being assigned a depth, allowing 3D objects to be created. Along with the data file are PNG image files of each element, and all these files are packed into a ZIP container with the ITSP file extension.
| Extension | STP |
| Full Name | STEP-File |
| Type | 3D Model |
| Mime Type | application/octet-stream |
| Format | Text |
| Tools | STP Converters, 3D Model Voxelizer, Create STP Animation, Text to STP, STP Viewer |
| Open With | CAD Assistant |
The STP file format, which can also be found with the extension STEP, is a 3D format defined in 1994 and used to store 3D objects for use in computer-aided design (CAD) applications. STP files are text-based, formatted files containing one instance per line.
Although STP files are widely supported by most CAD applications, the format does have its limitations, such as the necessity to read the complete file into memory in order to parse the contents, and due to the textual storage of information, the files can be quite large.
Converting from the ITSP file format to STP can be a complex process, and any tool used for this conversion process needs to be able to handle a variety of data conversion tasks as well as identify any defects within the 3D model and fix them. Here we will explain the conversion process used by our tool to accurately convert your ITSP file to a valid STP 3D model. Let's start with the conversion process, which involves the following steps:
In its simplest form, an ITSP file is a binary data file containing 3D data such as vertices, faces, normals, and more. When combined, these make up the 3D model you see on your screen.
For more information regarding the ITSP file format, please see this great article that goes into a lot of detail explaining the ITSP format.
With the ITSP file data read, our tool generates an internal representation of the full 3D model and will attempt to fix any geometry issues encountered. Along with repairing any issues with the 3D model, the tool will remove any duplicated vertices and prepare the model for exporting to the STP format.
With the conversion process entering its final stages, our tool now needs to take the in-memory 3D model we have created in step 2 and convert it to the STP format.
First click the "Upload..." button, select your ITSP file to upload. Select any configuration options. When the ITSP to STP conversion has completed, you can download your STP file straight away.
We aim to process all ITSP to STP conversions as quickly as possible, this usually takes around 5 seconds but can be more for larger more complex files so please be patient.
We aim to create the most accurate conversions with our tools. Our tools are under constant development with new features and improvements being added every week.
Yes, of course! We do not store the ITSP file you submit to us. The resulting STP file, once created is deleted 15 minutes after upload and the download link will expire after this time.
No. All our conversion tools process your ITSP file on our dedicated conversion servers, meaning you can use our tools on low-spec computers, laptops, tablets, and mobile devices and receive your converted STP file quickly.
Yes! Our ITSP to STP tool will run on any system with a modern web browser. No specialist software is needed to run any of our conversion tools.
Yes. Although you can use an Ad Blocker, if you like our ITSP conversion tool please consider white-listing our site. When an Ad Blocker is enabled there are some conversion limits on some of our tools and processing/conversion times will be longer.
Yes. When you have converted your ITSP to STP, there is a "Feedback" option that you can use to let us know of any issues you encountered when converting your file.
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