STL, OBJ, FBX, 3DMAX, GLTF, GLB, Blender, FBX and other format files need to be converted to entities before they can be edited in CAD software. There is no concept of vector surface in polygonal format. Converting to entity format will increase the file size by more than 10 times.
If the number of triangles in the source file exceeds 100,000, the conversion service will automatically reduce the number of faces to less than 100,000 to ensure the availability of the STP file. We will export two standard STP files, AP203 and AP242. Please use them as needed.
Please use Solidworks to open the AP242 format Stp file. It is slow to load. It usually takes 60 minutes to open 100,000 polygons. Please wait patiently.

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  • Ordinary users: The maximum file size that can be uploaded is 20MB, and 3 files can be converted per day
  • Paid membership:Enjoy more conversion quota, batch upload, priority conversion, maximum file size of 1000M, file storage for 3 days, etc.
  • Single file models can be uploaded directly. If the file type is not within the range, please compress and package it for upload.
  • For models containing parts, please package them and upload them later. Zip and Rar compression formats are supported.
  • In UG/NX, if the part suffixes such as .PRT and .ASM are the same as the assembly file, please rename the assembly file to zpt.prt to facilitate system recognition.
  • If the model file is too large, the conversion program may time out; the timeout is 40 minutes for regular users and 120 minutes for paid members