Hello, what is the difference between the C-Beam Linear Actuator Bundle 500mm and the C-Beam XLarge Linear Actuator Bundle 500mm? From the look, it seems that they are the same except that the former has V wheels hidden inside the Linear Rail while the latter are on the outside. Do they both function well if placed vertically like an elevator? Also, does the Gantry Plate in both products wobble?
The larger plate of the XL is more stable but has 45mm less travel range than the regular C-Beam actuator on a given length of beam. As for which is best lifting a load vertically, depends on the load and the distance the load is hanging out from the face of the plate. As far as wobble, neither should wobble. While the regular C-Beam has more potential due the closely spaced wheels, it takes a pretty good force to flex it out of alignment.
Thank you. In the actual products, is the C-Beam XLarge Linear Actuator Bundle the same as the C-Beam Linear Actuator except that the former has a larger gantry plate? Could you please let me know where the SolidWorks CAD files for the C-Beam XLarge Linear Actuator Bundle are located?
Yes. The naming difference between the two merely reflects the different plates attached to them. C-Beam Gantry Plate - OpenBuilds Part Store vs. XLarge C-Beam Gantry Plate - OpenBuilds Part Store. The C-Beam gantry plate was the original plate designed to work with the C-Beam linear rail. The XL gantry plate followed some time later when it was fairly clear a bigger plate with a wider grip would be a good addition. As for the latter part of the question, someone else will need to chime in on that.
We mainly maintain it in sketchup format, but see the Resources tab above, some models have been converted to Solidworks by the community or see GrabCAD and other similar repos
OK. Thanks. On the product page of both products, it sates Max Force 115N. Is it with the standard NEMA 23 Stepper Motor (SKU 518) or the NEMA 23 Stepper Motor - High Torque Series (SKU 596)? Am I correct that both of these two motors will work right out of the box with both C-Beam Linear Actuator Bundle and the XLarge Linear Actuator Bundle? Also, it looks like the High Torque (SKU 596) version has twice more torque than the standard (SKU 518) version. Are there built-in gears inside the High Torque version? What is the maximum speed for each?
See OpenBuilds Actuator Test Rig for the test setup used to build out the report https://openbuilds.com/uploadfiles/Part%20Specs/OpenBuilds%C2%AE%20Actuator%20Tests_V2.pdf
Hello, I read that the Anti-Backlash Nut Block for 8mm Metric Acme Lead Screw is made of Delrin rather than metal. How come? I am a bit concerned about the potential of wearing off easily especially if the load is heavy. How often do I need to replace the block? Is there a metallic version? As for the two C-Beam End Mount located at each end, from the photo I see there are two holes facing the top of each plate. Are those mounting screw holes that I can use to fixate things? What screw size is that?
Higher precision (with a metal nut you can't have as tight a fit as it has no "give" to the threads, so you'll always have the nut a little loose on the threads which gives you backlash. The delrin blocks are way more precise and a nice tight fit on the threads (especially the Anti-backlash nut) On a normal CNC application like our machines, no one has ever worn out a leadnut. Just doesn't happen.
I see, do we need to put some grease in the hole that the lead screw passes through? As for the two C-Beam End Mount plates located at each end, are those two holes on the top mounting holes? What screw size?
Normally no grease needed, Delrin is self-lubricating. Some can be a little tight on intial setup, in which case a quick spritz of PTFE/Dry Lubricant like https://www.wd40.com/products/dry-lube/ on the leadscrew itself can help you with easing the assembly together and also help the leadscrew do that initial bedding in easier. The choice between Delrin and brass for a nut block used on an Acme leadscrew depends on several factors, including the specific application requirements and desired characteristics. Self-Lubricating Properties: Delrin, also known as Polyoxymethylene (POM), is a type of engineering thermoplastic with self-lubricating properties. This means it can reduce friction between the nut block and the Acme leadscrew without needing additional lubrication. Brass, on the other hand, generally requires lubrication to minimize friction, which can add complexity to maintenance and operation. Wear Resistance: Delrin is known for its excellent wear resistance, which means it can maintain its performance and dimensions over a longer period compared to brass. Brass nuts may wear out faster, especially if used in high-load or high-speed applications. Corrosion Resistance: While brass has decent corrosion resistance, Delrin is more resistant to corrosion and chemicals. This makes Delrin nut blocks suitable for environments where exposure to moisture or chemicals is a concern. In summary, the Openbuilds Nutblock made of Delrin offers advantages such as self-lubrication, excellent wear resistance, corrosion resistance, lighter weight, and cost-effectiveness compared to brass nut blocks when used on Acme leadscrews.
Basically all OpenBuilds modular parts are M5 thread: Low Profile Screws M5 (10 Pack) Watch the video to learn where everything goes, what screws are used etc Or if you mean the forward facing holes, those are for installing C-Beam Shield (not usable with the XL, only for use with the regular C-Beam plates, along with a set of C-Beam Riser Plates to lift the 2nd plate up, and also need to add a second plate C-Beam Gantry Plate / or the double wide) but as you are interesting in the XL, not something you'll use
