You have at least one problem with geometry of your printer. Belts on X should be parallel to X axis in XY and XZ planes. Your very first image shows problem on a left side.by piper3d - CoreXY Machines
Your horizontal belt planes (driving the carriage and Y) are not flat. It means that belt tension will be different for different carriage positions. Most likely belts are jamming pulleys and motors are not able to move. I tried to line planes they maybe influenced by perspective but problem is visible anyway. That left motor is too high and most likely your major problem.by piper3d - CoreXY Machines
Call them. My last interactions with them were several years ago and I remember that call worked better than messages.by piper3d - CoreXY Machines
You should contact Airwolf3d, They have good technical support team (at least from my experience).by piper3d - CoreXY Machines
Making a 3d printer would be 10-15% of the technical problem solving, the rest is resin. By the time you will get through FDA with that 3d printer and material (specially material) you may be well be past price point of CEREC CNC machines. For example: CNC machines do not deal with internal pores of the material where 3d printer do. Any pores left by 3d printer between layers would be a potentby piper3d - General
If you do not want to invest in ABL use dual endstops on Z it will save you some headache.by piper3d - General
QuoteEzyMan Power Input (W): 100 Length of Plate (mm): 800 Width of Plate (mm): 800 .. For that size, you want a 1kW heater, not 0.1kW, unless you are fine on waiting 1 or 2 hours for print bed to heat to 55C. In general (no offense) looks like you do not know what you are doing. You may go either: 1. experience way - start with a smaller printer like 300x300, 2. or knowledge way and repeatby piper3d - General
QuoteArchiclem I completely agree with you, but in the case of the piper3d, there is no bracing of the printer (unlike the prusa which rely on a waterjet powder coated frame...) So the printed part are having a much more important structural role... I don't say it cannot work, I just say it's less sturdy. "powder coated frame" is fixing structure in X direction. What about Y direction? We may haby piper3d - General
You have only one option then but it is not open-sourced - Black Belt. White Knight, Power Belt, Zechy's printers do use printed parts.by piper3d - General
QuoteArchiclem I’ve come across the piper infinity which looks interesting but a bit cheap… This is insulting... Just order custom pipes in gold or platinum or at least titanium and it won't be cheap.by piper3d - General
You are looking for a tool changer, like this one: https://youtu.be/C4KVxfeMUEwby piper3d - CoreXY Machines
Quotedc42 RRF may work best on Duets, but it has been ported to most 32-bit controllers. Thank you dc42, Now I must test it on skr 1.3by piper3d - General
Marlin is a 3 axis engine. It will be more difficult to change it into 4 or 5 axes. You may want to look at RepRap firmware instead.by piper3d - General
Metric version of Piper Infinity was released:by piper3d - General
Quotegmedlicott Right now its running on Marlin 1.1.9 on a board with 5 drivers. I would like to move a board with 6 drivers (or ideally 7) for auto gantry leveling. You want to look at Klipper. with 1 additional 8 bit board and RPI you will have 10 stepper drivers, with 1 more board 15. So you can run 4 Z motors to auto-level and several more left for tool changer and a robotic arm to remove prby piper3d - CoreXY Machines
QuotePeter Stoneham In my opinion it is superior to the twisted belt core xy and is particularly suited to larger builds e.g. the belt length per 'H' in my build is 7.2m... This is questionable as a single belt in coreXY will be about 4.8m in the same configuration.by piper3d - CoreXY Machines
I would also consider that you will not override max speed with M203 but set it in Marlin. While testing to fond those values it may be fine, but once you done test write values to configuration.h and flash the board. And as @the_digital_dentist said use positive numbers, it is highly possible that there is bug in Marlin for moving in negative space. Get positiveby piper3d - CoreXY Machines
Before going into buying mood I would recommend starting with SolidWorks or Fusion 360 assembly. This way you will not be buying parts 2 or 3 times and may not need to cut anything, but order precisely cut pieces.by piper3d - CoreXY Machines
If your motors go in one direction only - usually it is a sign that you did not connect endstops to your board yet. You may need to use jumpers on endstop pins or change false to true in: #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop. #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop. #define Z_MIN_ENDSTOP_INVERTING fby piper3d - General
Using @the_digital_dentist picture: A,B,G,H should be aligned to make square prints rest may not be parallel. Those belt parts each have a pair of idlers/pulleys. (plus F,D,E,C but they have one idler)by piper3d - CoreXY Machines
MPCNC is a Cartesian which sometimes called "Ultimaker" style machine. Not sure how to move thread .by piper3d - CNC Routers, Mills, and Hybrid RepRapping
Quotegtj Quotethe_digital_dentist You have to align the drive and idler pulley to keep the belt parallel to the guide rails in any belt driven machine. Yeah but in my Cartesian, there were 4 sets of 2 and only the 2 in each set had to be aligned together... the drive gear and the far end idler. . In coreXY, you need to align 4 pairs of idlers/pulleys so the score is the sameby piper3d - CoreXY Machines
@Roberts_Clif you are posting in the wrong forum. MPCNC is not coreXY and you are not using coreXY machines to print MPCNC. It is great design anyway by Ryan Zellars.by piper3d - CNC Routers, Mills, and Hybrid RepRapping
If you will want a tool changer for your printer it is much easier to work with X carriage moving in X on a single direction rail or linear rods rother then working with crossing XY rails/rods. Tool changer will be much simpler.by piper3d - CoreXY Machines
Run google search and use schematics with a voltage divider (2 resistors).by piper3d - General
One more video: https://youtu.be/vpCAwanKfxU comparing the quality of positioning model parallel to the bed and parallel to the gantry.by piper3d - General
One more video: https://youtu.be/vpCAwanKfxU comparing the quality of positioning model parallel to the bed and parallel to the gantry.by piper3d - CoreXY Machines
Piper Infinity - Infinite Z 3d Printer was released to Thingiverse https://www.thingiverse.com/thing:3711685 https://youtu.be/cXpw816IOU4 Not sure if you will notice it but from https://piper3dprinters.com: "Some features of Piper Infinity may deserve a separate patent application, but we have decided to grant those ideas into the open source community: – Angled extruder which allows the use oby piper3d - General
Piper Infinity was released. check https://www.thingiverse.com/thing:3711685by piper3d - CoreXY Machines