Hot answers tagged

8

It's a question of what you want to use the belt for. All Belts are subject to stress as they run around the motor and idlers and gears and bend. They will get eaten as they are subject to friction against parts, they will stretch as they are subject to tension. All this applies some sort of stress or another on the belt. Anything that is subject to stress ...


6

It's a garbage-quality belt, and it will probably continue outgassing at a steadily-decreasing rate for a very long time. The fact that it has a strong chemical smell is pretty good evidence that it would not comply with regulations in civilized countries (such as REACH). I would recommend returning it or throwing it away and buying from a more reputable ...


5

Belts come in several formulations. This page from McMaster-Carr lists several types of belts. The main materials (rubbers) are Neoprene and urethane, with fiberglass, Kevlar, and steel reinforcement. I would suggest spending some time looking at these, comparing the specs, and basing your choice on the needs of your application. I used 1/4" wide MXL ...


5

I’m going to recommend not using a fishing line with knots. Probably the biggest problem you’ll have using the fishing line with knots is if the knots are not perfectly spaced, movement along the X or Y axis is not going to be consistent. This could result in weird deformations in your print. Depending on how you tie the knots they may not grip the teeth ...


5

At a nearly microscopic level, the herringbone belt/gear combination will reduce the whoosh effect of a square profile cogged belt forcing itself into a matching profile pulley. Consider a well-sealed drawer or similar shape. Push it into the cabinet at maximum speed and force and the air is going to have a difficult time exiting. By the design of the ...


4

I followed up with Prusa on this recently (a few months later) and they confirmed that there were issues with some belts but that this has been fixed in production. To provide a better guarantee of quality, I opted to replace both the X and Y axis with genuine GATES 2GT PowerGrip GT3 belts. This has fixed the problem for me.


3

I had the same issue with my X5S when I first got it assembled. Because it's CoreXY, if one pulley slips, you'll skip steps in the diagonal. Check both set screws on your pulleys for the X and Y.


3

Axis should definitely be at proper position. Otherwise you will get at least 2 issues. Carriage will be pulled up which will cause stresses on rollers or slides and it will stress your belt The way the carriage will go will change but because carriage itself is fixed then it will change the speed 3D printing is a precise process. Both issues will have ...


2

I have recently changed the standard belts on my Prusa MK3 for the aramid fiber reinforced E3D neoprene belts. Those belts are really tough and hard to cut even with a quality side cutter! They have a much smoother surface and a lot more aramid fibers than the standard belts. Prior to the change, the belt on the X axis was twisting when changing directions, ...


2

If you are using fishing line, it would perhaps work to wrap the line around the pully and fastening it to the pully (both ends), so that the line wraps around the pully. One side would play out from the pully while the other was wrapping around it. By attaching the ends of the line to the pully, there will be no slippage between the line and the pully. ...


1

Mine came from the factory tight enough that it doesn't sag at all, but not so tight that it feels hard or stiff or difficult to deflect a bit with gentle pressure. With the bed pushed all the way to the back, I can push the y-axis belt to the side about 1/8" with gentle pressure, and it feels like that's about as far as it's going to go even if I were ...


1

Generally, a timing belt is a complicated device and many things depend on its internal construction and materials (it may be damaged when bound in wrong direction, or when cut, and when overtighten of course, etc.). There is also physics and math applicable, based on Mersenne's laws. Some vendors provide calculators (online or as phone apps), which can ...


1

To be sure you could measure the width and the tooth spacing (pitch). The most probable and used belt in 3D printers is the GT2 6 mm belt. The teeth are spaced 2 mm and the width is 6 mm.


1

From your video, it sounds to me as though the stepper motor is fighting against the bed movement. That would indicate to me the bed rails on the X-axis are not square to the bed movement, which would cause binding of the linear bearings on the bed. To see if this is the issue, loosen the threaded rods in all six places (three placed times two rods). Loosen ...


1

I do not believe the standard rubber/plastic belts have any significant stretching over time, nor do they stretch under drive motor force during acceleration (and in any case, extrusion takes place mostly under steady-velocity conditions). While I suppose it's possible a steel-reinforced belt might have a longer lifetime, replacing a belt is quick and cheap, ...


1

I wanted to know the proper deflection I should have on the belt. What I have read is for every inch of belt (25.4mm) it should deflect 1/64 of a inch (.4mm). I found this information on this Website.


Only top voted, non community-wiki answers of a minimum length are eligible