Door Handle Replacement Plate

Create a precise parametric 3D-printable replacement plate based on the attached reference photos. ALL DIMENSIONS ARE IN MILLIMETERS. Do not scale or guess the dimensions. Overall height: 125 mm. The part consists of a compact upper door-handle section, a short central stem, and a lower circular lock section. UPPER HANDLE: - U-shaped opening for a round door handle. - Opening diameter: exactly 24 mm. - Radius: 12 mm. - Opening is open at the top. - Upper side wings should be compact and not excessively wide, matching the photos. - Do not make the upper wings unnecessarily large. CENTRAL STEM: - Width: exactly 15 mm. - Length: approximately 28 mm. - The stem must be straight, centered and noticeably shorter than the previous 40 mm version. - It should connect directly between the upper handle section and lower circular section. LOWER LOCK SECTION: - Perfect circular outer shape. - Outer diameter: exactly 55 mm. - Centered on the same vertical axis as the handle and stem. CROSS OPENING: - Large centered PLUS/CROSS-shaped through-hole. - All four arms must have exactly the same width. - Cross arm width: minimum 15 mm, preferably exactly 15 mm. - The horizontal and vertical arms must NOT have different widths. - Cross opening should be large, approximately 50–52 mm total tip-to-tip in both directions. - It is intentionally slightly larger than the actual lock hardware so the part fits easily. - The cross must be a complete through-hole. - Keep a small but sufficient material rim around the cross opening and the 55 mm outer circle. THICKNESS: - Uniform part thickness: 3 mm. The entire part must be symmetrical around its vertical centerline. No screws, text, logos, decoration or additional holes. Create ONE watertight/manifold solid suitable for FDM 3D printing. Make all important dimensions editable parameters: TOTAL_HEIGHT = 125 LOWER_DIAMETER = 55 HANDLE_DIAMETER = 24 STEM_WIDTH = 15 STEM_LENGTH = 28 CROSS_ARM_WIDTH = 15 CROSS_LENGTH = 51 THICKNESS = 3 Export as STL and preferably 3MF or STEP. Do not automatically scale the finished model.

Parameters

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.