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GregValiant

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About GregValiant

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  1. It may be something as simple as unchecking "Origin at Center" which is on the Manage Printers / Machine Settings page. If it is already unchecked then: Load an STL in Cura. Set Cura up with your normal settings. Choose "File | Save Project". The resultant 3mf file will contain the model, the printer, and all your settings. Post that here along with that gcode file that is in the video.
  2. There are a LOT of slicers. Many are Cura based (one bears mentioning). I am running Windows and the options for Mac's and Linux may be different. Ultimaker Cura - my personal favorite. Among other things it is very good at supports. Lots of options makes it tougher to learn. Great post-processors allow customization by users. Between the Cura team, the regular Cura contributors, and the volunteer help (myself excluded), tech support is excellent. PrusaSlicer - Has a lot of fans. I use it once in a while mostly to keep my hand in. I like it. Cura Master (the Smart
  3. What we have here is a moving target. I agree that's what the first preview looks like. I was working with the gcode file that Baltic posted. Here is "1.gcode" open in Cura. The surface is at 28.3 and is below that first break line of the right wall. The mid point of the vertical walls is Y=118. But point C is at Y=129.58. You can see in this orthogonal view of layer Z=28.3 that C is not at the midpoint. I think the key here is why ptB was ignored on this layer (or other points on other layers since dependent on the settings, error surfaces came and w
  4. That was the height of the top layer and it's what it should be. It sounds like the machine is shorting the dimension. There are a couple of things you can look at. Make sure the coupler on the Z motor isn't touching the body of the motor. There should be 6 or 7mm clearance. Check that the set screws in the coupler are tight. With the printer auto-homed - is the Z screw parallel to the aluminum upright? If it isn't then that can cause Z binding when the Z is at 0 to some distance above 0. If you don't find an issue with those three then: The default Z
  5. Pt C is in the middle of nowhere. When I slice the file and generate a gcode I can't reproduce the error. Everything is as I would expect. FYI there are 796 triangles in the part.
  6. And here we are @gr5. The light gray lines are the triangles. Triangle abc is the surface that is in error in the gcode file and it is at Z=28.3 and nowhere else. Travel is Clockwise and should be ptA to ptB to the btm rt corner. There shouldn't be a stop at ptC. These are the relevant lines from the gcode file and are the first evidence of the error: G1 X57.698 Y218.13 E3174.98208 ; ptA G1 X155.509 Y129.584 E3177.1762 ; ptC G1 X155.51 Y17.1 E3179.04682 ; btm rt corner This is from the next layer up: G1 X57.463 Y218.1 E3387.91512 ; ptA G1 X155.527 Y218.
  7. +1 USB printing seems attractive. Then Microsoft pushes a Windows update at 3:00AM and the PC restarts. When that happens the USB 5 volt signal is lost at the printer (along with the gcode data feed) and of course printing stops. When the PC comes back to life - the 5 volt USB signal comes back on and that causes an External Reset of the printer so it reboots (which is not the same as a recoverable power loss). At that point all is lost. Removing the PC from the network while printing (or disabling automatic Windows updates) can SOMETIMES fix the problem. There is still the M105
  8. I guess I called that one pretty good. It's odd how some times the support will come off like a zipper and leave a decent finish, and other times it's welded on so good that removing it would destroy the part. It's one of the reasons why even though right side up would use a lot of support - it would all be on the backside. Designing parts for FDM involves different realities, or alternate universes, or something.
  9. @gr5 and @baltic - I tried all kinds of things to reproduce the problem. No luck. @baltic, could you post a gcode file created from that slice with the errors in it? I can read it into AutoCad and bypass Cura.
  10. Service.netfabb.com is an AutoDesk site and is the repair utility. Upload, wait a bit, download. It does require that you create a free account. It's painless. If you load a model file into Cura and get the "Model is not watertight" or "Model consists of XX sub-meshes" popups then using the repair facility can fix a model. Any repaired model needs a close look to see if anything might have been changed that shouldn't have been changed. In the case of your leg bracket, that only takes a second. For some complicated models you have to stare at them for a while. Cura's Mesh Tools are
  11. Here @Torgeir and @CondorDave The OBJ model sliced showing missing layers. (the lines in the cross hole are travel moves) This is after the model was repaired at Service.netfabb.com. (I exported it from Cura as an STL.) GV_LegBracket1v20v3_fixed.stl
  12. "Like if you had the old pentium from years ago where sometimes the floating point processor returned the wrong answer?" It goes back a bit further. Intel was having trouble getting the floating point side of the 486's to work consistently. Their fix was simple. If the floating point side of a chip didn't work when tested, they totally disabled the floating point side and renamed that particular chip a 486SX and were able to sell their scrap (slightly discounted of course). It was a brilliant solution. If the floating point side worked it was a 486DX.
  13. Another option is to make the "hooks" glue on additions. I often put matching 2.2mm holes into mating parts, glue in pieces of filament in one of the parts as locating pins, and then glue the parts together. We get carried away with Print In Place but sometimes making things as assemblies is much simpler and just as strong. Super Glue works well with PLA and PETG.
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