9
votes
Accepted
How are delta movements calculated?
There are two main special steps to the technique used by most open-source 3d printer controllers:
Divide each linear gcode segment into lots of very small subsegments ("Segmentation")
Use some basic ...
- 6,536
9
votes
Accepted
How to change the voltage on a FLSUN QQ
I don't know if this is the case with all FLSUN QQ printers, but mine was indeed set to 220v as the instructions/user manual indicated. First I needed to remove the bottom of the printer. Then there ...
- 1,339
6
votes
Clean or wipe move for delta 3D printers
Slic3r, and all other slicers that I saw, have an option called Skirt that enables your printer to print a number of lines around your object before it starts ...
- 371
6
votes
Accepted
Through what methods and mechanisms can a multi-material FDM printer operate?
Let's look at various methods:
Multiple Hotends
The oldest version and one of the best to print materials at vastly different print temperatures (like printing a cheaper PLA infill into a ...
- 21.2k
6
votes
Accepted
Why are delta bots so finicky?
user77232's points are valid but I have done several things to mitigate these issues on my Anycubic Deltas.
First, both of my deltas have linear slide bearings. If your's has the bearing trucks that ...
- 76
6
votes
Accepted
Why not use high rpm stepper motors with high microstepping with gear reduction in 3D printer?
To answer each point:
Microstepping improves resolution as much as 32 fold (I think) but reduces torque the higher you micro-step.
Torque is not reduced by micro-stepping. Torque reduction only ...
- 2,360
5
votes
Accepted
Nozzle moves very slowly from home to start position
I had the same problem, and I solved it by changing the Z-Axis Feed Rate to a much higher value (1000 mm/min.) in Repetier Host via Config -> Printer Settings -> Printer.
- 66
5
votes
Kossel accumulates error along Z axis
After some more testing I checked that the problem shows up only on Z tower and is not related with current. Examining the tower I found very dumb mistake. Pulley on the motor didn't have a setscrew! ...
- 221
5
votes
Accepted
Clean or wipe move for delta 3D printers
You can achieve this using the G1 command. I don't know your exact printer, but you should be able to use something like this (add to the start G-code in your ...
- 14.8k
5
votes
Clean or wipe move for delta 3D printers
A lot of slicers will have a Wipe option. Here are some examples:
See Unofficial Simplify3D Documentation. Go to the section talking about Wipe Nozzle, under the heading Extruder Tab
Two more ooze-...
- 3,043
5
votes
Accepted
At which point does a delta 3d printer change the G-code in order to work in its non-cartesian design?
The short answer is that the handling of the non-cartesian design is done by the motion-control firmware running on the Arduino.
The long answer:
I don't believe GRBL supports non-cartesian designs, ...
- 798
5
votes
Delta Printer: Slighty incorrect print alignment on the build plate
I figured out that the reason is probably a slightly translated slider construction. Instead of using a proper centered slider as shown in red, I used a slider construction like illustrated in yellow. ...
- 664
5
votes
Why are delta bots so finicky?
(The XYZ Printers are called Cartesian Printers)
Delta printers are harder to get right, because they require precision parts. The arms have to be EXACTLY the same length, the frame must be square, ...
- 2,360
4
votes
Accepted
Bed leveling method not working with Repetier firmware 0.92.9?
As a guess, you are using the wrong command. If set for n x n grid, you get 3 point measurement with G29, but that is not auto leveling, it is just setting Z height - based on average height at 3 ...
- 56
4
votes
Kossel accumulates error along Z axis
According to discussions in comments, I'm pretty sure the problem lies in too low current.
Please review this answer to How do you make sure you have the right voltage on the trimpots on a A4988 ...
- 3,456
4
votes
Accepted
Delta 3D printer extruder?
My FLSUN Kossel 3D Delta printer ($224) has a bowden extruder. It works really well too.
The main advantage of having one is that it reduces the mass of the hot end. That means less inertia, and it's ...
4
votes
Accepted
Scaling/size issues in delta printers
Issues in X-Y size on a Delta are usually the result of an incorrect diagonal rod value in the firmware. This should be easy to fix assuming the rods were built together.
The formula for this is (...
- 2,090
4
votes
Printer going wild mid print
For anyone having the same issue I found out it was due to a Z axis motor lock up because the pulley attached to it would get stuck under the bed. I found out because I tried to print again and it ...
4
votes
Where to find z coordinate in G-code for delta printer
It isn't hidden at all. It's just that the Z-axis position only changes with each layer change, so the Z coordinate is only passed at layer change. On line 17 of your example G-code, it starts the ...
- 14.8k
4
votes
Accepted
Delta printer distortion
I bet your towers are not standing straight (vertical) or
your bed is not clearly horizontal
I've recreated your picture with some assumptions (for example that your SW calculates properly and your ...
- 3,456
4
votes
Accepted
Under extrusion towards the end of the print
Do anyone have any ideas? What this can be? How can I fix this?
At least judging from the pictures, that does seem like under-extrusion. Some ideas for further investigating the issue.
The problem ...
- 4,687
4
votes
Accepted
Getting wrong measurements on my Kossel Linear Plus after installing SKR 1.3 with Marlin 2.0
So the problem was that the TMC2208 were wired for UART mode, yet Marlin was configured for standalone, which apparently makes them work, but with completely wrong step sizes. Changing it in the ...
- 126
3
votes
Accepted
Building new Repetier firmware for a delta printer (D-force)
You, obviously, do actually have a Z-probe, but in case another user does not, or you decide not to use yours, I will cover both cases (with and without a Z-probe).
Z-probe not present
If not, then ...
- 6,192
3
votes
Accepted
Aluminium cube - fan and hotend mount - is it worth it?
I think its only advantage is that it serves to move money from the folks who buy it to the folks that sell it, and that's an advantage purely for the folks that sell it.
"Additional heatsink surface ...
- 723
3
votes
Estimating printing time from Cura
If you properly define your own machine with a delta_wasp.def.json file you can fill in the acceleration and jerk settings of your printer, so that Cura will use ...
- 382
3
votes
Distortion calibration on XY plane in Repetier
Skew distortion in deltas means there is something physically wrong with your printer build, such as the towers not being evenly spaced or being tilted. The first thing you should do is confirm the ...
- 6,536
3
votes
Bed leveling method not working with Repetier firmware 0.92.9?
Delta bed leveling has been dodgy in Repetier for a long time. There are a number of fixes occurring in the dev branch right now (June 2016) if you look at Github. So it's getting better, but I wouldn'...
- 6,536
3
votes
Accepted
Print quality of Kossel clone for Print in Place models
Delta printers are considered to be able to be accurate printers cause of the limited weight in the head (using Bowden extruder setup). The positioning can be very accurate (limited weight, limited ...
- 34.5k
3
votes
Print speed and settings for printing below 0.1mm resolution on PLA
To answer this question for anyone who will find this of use, I printed this calibration cube at 25mm to a side (125% scale in Cura) with my Kossel Plus using the following settings:
0.08 mm layer ...
- 179
3
votes
0.9° motors for Delta printers?
Delta bots always need all motors to step to maintain a straight level. Microstepping, is not magic, the incremental torque decreases per step so that you will be more likely to miss a few micro-steps....
- 34.5k
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