G31 P25 X58 Y-6.5 Z0.8 set Z probe trigger value, offset and trigger heightĪlso, your trigger height of 0.8 is quite low and indicates that the BLTouch isn't mounted at the correct height. M558 P9 H5 F60 T6000 R0.5 A10 S0.003 set Z probe type to bltouch and the dive height + speeds Though it should be possible to do a single detailed G29 and then load the heightmap before a print. Though it will making probing a bit slower. It will make it a bit more consistent and reject any bad probe points. I would suggest altering your BLTouch configuration in config.g to match this. If you look at the maximum deviations it is in fact only tiny parts of mm + or - from the Z0 point. The heightmap display is intentionally exaggerated to highlight the difference in bed surface. (maybe could be tiny parts of mm, but not that much). Same results or ender print surface on said in Ender 3 + Hemera + bltouch: Any ideas? Print bed is flipped, plain glass on top. I was messing with this crap whole day and could not sort out the problem. I realised about the problem, when I was trying to print TPU(hemera can barely print it), when on the right side of the bed, lines were not squished enough against bed. Made a test print over whole bed, and results are weird too (best surface where the bed mesh shows blue). But actually it is not (maybe could be tiny parts of mm, but not that much). As you can see in the pictures, it shows bed is tilted. Since bed is completely parallel, did G29 bed mesh. Even though, when homed, at Z=0, nozzle still has slight gap with bed (maybe 0.05mm). Then returned to start point and recalibrated trigger height. Then went through all corners, and adjusted the bed, just to have exactly 0mm gap between bed and nozzle. How I have calibrated trigger height? Homed all axis, at start point went Z=0. Bltouch trigger height is calibrated numerous times and I keep getting stable results, when probing same point. The problem is, that I keep getting weird results. Bltouch is attached on the right side, on the extruder motor (have offsets calibrated as well). I have ender 3 pro, upgraded with duet wifi, e3d hemera + bltouch. Also, the linear rail needs to be moved to the right (viewed from the front of the printer) for the nozzle to reach the whole bed.Ran into a problem. There are some nice designs on Thingiverse.Īs a downside, you have to relocate the x-axis endstop switch. On the opposite side of the Hemera/Hermes, you can mount any generic bed leveling sensor mount and fan duct. It includes a 30 mm long outlet to fix the bundle of wires that exits the x-carriage with two zip-ties. There are three attachment points for zip-ties that allow you to neatly mount the heater cartridge and thermistor wires I cut a channel that allows you to rout the hot end fan wires between the Hemera/Hermes and the adapter bracket (For the one screw that goes through the belt bracket, you have to shorten a M3x20mm screw to 18mm or use some shims under the screwhead - this is important as using a screw which is too long will damage the Hemera/Hermes) The adapter bracket is thick enough to allow the usage of three M3x8mm screws supplied with the Hemera. The Hemera/Hermes is mounted in a way that produces minimum flex in the adapter bracket The hole is highlighted in screenshot #2. (Attention: you have to drill out (try a 3mm drill first or a 3.5mm if you have one) the center hole of the aluminium part to make it a through hole for an M3 bolt. It re-uses the x-axis belt bracket supplied with the BLV upgrade kit so the belt can be properly tensioned. The design emphasises the mechanical strenght of the whole assembly: This mount is designed for the BLV Ender 3 Pro upgrade that uses an Hiwin MGN 12H linear rail on the x-axis. This design is still being tested by me - any feedback for improvement is welcome
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