--- title: "Mechanical Assembly Checklist" slug: "mechanical-assembly-checklist" updated: 2025-03-04T08:30:01Z published: 2025-03-04T08:30:01Z --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.vention.io/llms.txt > Use this file to discover all available pages before exploring further. # Mechanical Assembly Checklist ## Overview --- The mechanical assembly checklist should be used as a final check once the system is assembled. Use the following checks to ensure that your system is assembled correctly. ## General assembly | **1. Extrusions** | Extrusions are assembled according to CAD design. - Check that the right profile type and length are used in each location. | | | --- | --- | --- | | **2. Gussets** | High-precision (HP) and general-precision (GP) gussets are installed in correct locations. | | | **3. Plates** | Assembly plates are properly mounted; no fasteners are missing. | | | **4. Frame** | Base frame can support more than enough weight. - Inspect entire assembly, starting from the bottom and moving up. - Use a framing square if necessary to attain the correct perpendicularity. For details, see the [assembly guide](/technicaldocumentation/docs/assembling-your-vention-machine). | ![image](https://cdn.document360.io/3eee4d14-5ca0-4ea6-b426-1c19393e6a5e/Images/Documentation/lined-up-3.jpg) | | **5. Screws** | Screws are securely tightened. - Torque all fasteners to 13–16 Nm. - For systems exposed to vibrations, consider applying Loctite 2760 to critical screws. For details, see the [anti-vibration products guide](/technicaldocumentation/docs/anti-vibration-products-for-fasteners). | | | **6. Level** | System is leveled. - Check using a level. - Adjust feet as needed to obtain desired results. | | | **7. Cables and tubes** | Cables and tubes are sufficiently long and run along clear paths. - If you have any moving parts or are using drag chains, check that cables are long enough to move from one end to another. - Cables and tubes should be easy to identify and to access. For details, see the [cable management guide](/technicaldocumentation/docs/cable-management-ecosystem). | | | **8. Hinges** | Hinges move smoothly. | | | **9. Safety interlock** | Safety interlocks are adjusted and fully engaged. | | | **10. Custom parts** | Custom parts are deburred and have no sharp edges. | | ## Rack and pinion | **11. Rack spacing** | Gear rack sections are properly joined. - Place the rack installation tool over the joint of two rack segments to check that teeth are spaced correctly. For details, see the [rack and pinion actuator guide](/technicaldocumentation/docs/rack-and-pinon-actuator). | ![image](https://cdn.document360.io/3eee4d14-5ca0-4ea6-b426-1c19393e6a5e/Images/Documentation/rack-mesh-step-3.png) | | --- | --- | --- | | **12. End-stop brackets** | End sensor brackets are tightened on rack. | | | **13. Housing** | Bearings and/or rollers are securely mounted on housing. | | ## Alignment | **14. Rails** | - Linear rails are levelled and parallel. - Rail brackets are securely tightened on extrusions. - Gantry moves fluidly on the rails, traveling from end to end without any resistance.For details, see the [linear axis alignment guide](/technicaldocumentation/docs/vention-linear-axis-alignment-procedure). | | | --- | --- | --- | | **15. Shaft** | If system has butt-jointed rails: Butt-joints have no chamfer, gaps, or misalignment. - After alignment, double-check that shaft brackets are securely tightened. | | | **16. Roller wheels** | Eccentric rollers are all on one side and properly adjusted; concentric rollers are all on the opposite side. For details, see the [linear guides datasheet](/technicaldocumentation/docs/linear-guides-accessories). | ![image](https://cdn.document360.io/3eee4d14-5ca0-4ea6-b426-1c19393e6a5e/Images/Documentation/ffd7f14d-aaa6-4f0d-bea4-b740e83c24e3) | ## Lubrication and maintenance **Find step-by-step instructions for these components in the**[**maintenance guide**](/technicaldocumentation/docs/vention-maintenance-guide)**.** | **17. Linear ball bearings** | **Installation:** Ball bearings lubricated. **Maintenance plan:** Linear ball bearings lubricated once a year or after every 100 km of travel, whichever comes first. | ![image](https://cdn.document360.io/3eee4d14-5ca0-4ea6-b426-1c19393e6a5e/Images/Documentation/assembly-bearing-grease-fitting(1).jpg) | | --- | --- | --- | | **18. Plain bearings** | **Installation (recommended):** Shaft cleaned with 3-in-1 oil. No lubrication required for installation or maintenance. | ![image](https://cdn.document360.io/3eee4d14-5ca0-4ea6-b426-1c19393e6a5e/Images/Documentation/mo-lm-010-0001.png) | | **19. Ball screws** | **Installation:** Ball screws lubricated. **Maintenance plan:** Ball screws lubricated every six months or after 500,000 revolutions, whichever comes first. | ![image](https://cdn.document360.io/3eee4d14-5ca0-4ea6-b426-1c19393e6a5e/Images/Documentation/ball-screw-grease-fitting(1).jpg) | | **20. Rack and pinion** | **Installation:** Gear racks lubricated. **Maintenance plan:** Gear racks lubricated every six months or after 500,000 revolutions, whichever comes first. | ![image](https://cdn.document360.io/3eee4d14-5ca0-4ea6-b426-1c19393e6a5e/Images/Documentation/rack-pinion-grease-point(1).jpg) | | **21. Enclosed timing belt actuator** | **Installation:** N/A (ships pre-lubricated). **Maintenance plan:** Bearings and cover strips lubricated once a year or after every 100 km of travel, whichever comes first. | ![image](https://cdn.document360.io/3eee4d14-5ca0-4ea6-b426-1c19393e6a5e/Images/Documentation/enclosed-timing-belt-actuator-bearing-maintenance.png) ![image](https://cdn.document360.io/3eee4d14-5ca0-4ea6-b426-1c19393e6a5e/Images/Documentation/enclosed-timing-belt-actuator-cover-strip-maintenance(1).png) | | **22. Rotary actuator** | **Installation:** N/A (ships pre-lubricated). **Maintenance plan:** Gears lubricated every six months or after 10,000 revolutions, whichever comes first. | ![image](https://cdn.document360.io/3eee4d14-5ca0-4ea6-b426-1c19393e6a5e/Images/Documentation/mo-rm-003-0001--grease(1).png) | ## Sensors | **23. End-stop sensor** | **If using an actuator:** End-stop sensors are functioning (to detect when gantry reaches end of travel). | | --- | --- | | **24. End-stop bumper** | Sensor has sufficient clearance from plate at end-stop position. - Use jam nuts to adjust sensor position. - Leave 2-3 mm of clearance between sensor and plate at end-stop position, to ensure gantry hits the bumper and not the end-stop sensor. | | **25. Sensor mounting** | Sensors have enough clearance and are not intercepted by the movement of other components. | ## Motors | **26. Motor** | **Before installation:** Shaft has key installed on it. | | --- | --- | | **27. Power transmission devices** | **Before installation:** Design follows proper order of motor, gearbox, and brake. **If using a gearbox:** The input clamping mechanism is properly secured through ports on the gearbox’s side. |