if you don't make sure that both motors are sychronised), can end up is similar or worse self locking problems. The dual motor design if not properly implemented (e.g. And that I'm afraid is something you can't read, you have to make mistakes and learn.Īnd just to be clear: what I said in the previous lines, does not mean that the power screw in the middle is worst that two power screws either way. Generally, the most important thing is: not to overconstrain the assembly. Generally they worked well, however the initial prototype was troublesome with respect to getting the alignment of the bars correct, and using linear bearings of proper tolerances (too tight tolerances, were not good when there were misalignments in the rods, while too loose were making the stage move like a drunk sailor in an alley). That was an experience I had when designing a (budget) linear translation stage (that was almost 10 years ago)ġ0 or so were build from these, (with different lengths - so only the rods had different lengths). Surprisingly, even if the actuator is in the middle you might run into problems depending on the tolerance of the bearings. Type 19 Type 30 Type 45 CNC Machine Kits. If you don't push it around the center of gravity you will cause it to rotate.Īlthough using linear bearings (especially longer ones) will mitigate the problem, you will be creating more normal forces, therefore more friction, and the motor will draw more Amps in order to provide the required torque. Open Rail Supported Smooth Rods (SBR) HGR 20 Series V-Slot Linear Extrusion MGN Smooth Rod T-Track. It is a high-quality print and fits perfectly on my CNC machine. I love the magnets and the solid construction. In this article, we will also give a basic maintenance checklist for CNC. Imagine you have a pencil on a flat surface and you try to push. This product is awesome for your CNC machine. During CNC router maintenance, the CNC lubrication system with right CNC machine lubrication oil is very important, it affects the life of gear/screw transmission and rails, then affects the CNC router working precision and wood carving & engraving quality. What happens in the arrangement is that you are applying a force away from the center of gravity.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |