Quotedc42 1. You can leave the L and H values set to zero in the M305 command. For the EPCOS 100K thermistor, I believe the correct B value in the M305 commands is 4036 4190. If I use that value and set the others to 0 - "M305 P0 T100000 B4190 R1000 H0 L0" it reports the room temp as 17.5 degrees when in fact it is ~25 degrees (analog thermometer)now, so that does not seem right. What value is tby Koenig - Delta Machines
Quotedipenjungi when i did paper test these value i got now i don't know how to correct this, X tower paper test value X:88.33Y:-51.00Z:0.00E:0.00 Count X: 245.00Y:169.75Z:169.75 Y tower paper test value X:-88.33Y:-51.00Z:-2.30E:0.00 Count X: 167.44Y:242.68Z:167.43 Z tower paper test value X:0.00Y:100.00Z:-0.40E:0.00 Count X: 171.13Y:171.13Z:244.59 ORIGIN paper test valu X:0.00Y:0.00Z:-10.30Eby Koenig - Delta Machines
The temps does not seem completely right either and I have no clue what L and H value to put in the M305 command, is there some way I can get them from the old Mega-firmware? The termistors is the ones that came with this kit In Marlin it was defined as 1 for both bed and hotend and that definition reads as: "1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)" But Marlin reported tby Koenig - Delta Machines
QuoteSven.L Question: if I keep the rods long as they are now as delivered (Kossel 2020), without using the saw to cut them shorter, what printing area would I have, by diameter and height? Who can do these mathematics for me? Or, at least, provide me with the correct mathematical formulas so I can calculate by myself. Would be appreciated. Thanks. Just three threads down from this (at writing mby Koenig - Delta Machines
Quotedc42 What motors are you using, and what current have you set in the M906 command in config.g? If the motors can move the carriages down but not up, perhaps you need a higher motor current. You could also try removing the belt and see how the motor moves then. Use G92 followed by e.g. G1 S2 X10 to test the motors initially, so that the homing switches don't confuse the results. 17HM19-168by Koenig - Delta Machines
Quotedc42 2. If the motor moves backwards, either reverse the 4-pin connector, or use the M569 command to reverse the direction. This is what I thought as well, but if I reverse the connector the motors just stutter, that is exactly how I had it wired from the beginning.by Koenig - Delta Machines
Ok so I I connected my motors using this description: But when using that color-code (black, blue, green, red from left to right holding the card upside down according to the text) on the wires they just vibrated when I tried to home it... So I looked at dc42's blog and found he had wired them in the opposite direction (red, green, blue, black) looking at this: But then the motors went backwarby Koenig - Delta Machines
QuoteSven.L What are the parts I need to exchange, if I want to increase the print area in all three axises? One is the aluminum extruders. Another one are the rods. What else? Thanks. You will need a new bed, new rails ( or did your one come with rollers? ) and new belts as well as the items you've already mentioned. And maybe even consider new electronics, the 8bit ones come up short sometimeby Koenig - Delta Machines
Quotedc42 There is no P parameter in the M574 command. Where did you get it from? The command you need is: M574 X2 Y2 Z2 S0 The S0 applies to all endstops defined in that M574 command. I will update the page at to cover the case of active-low endstop switches. I actually think I copy/paste the entire config.g from someplace can't remember where exactly. Was a while ago though. This was it:by Koenig - Delta Machines
Quotedc42 QuoteKoenig Does this: "E1 motor current controlled by the SAM3X8E DAC0 channel" mean that you can dynamically control the current to the stepper, like using a larger current for quick accelerations (retractions) and a smaller one when there is normal movement to prevent the extruder from grinding into the filament? If so, that is a feature worth upgrading for. All the stepper motor cby Koenig - Controllers
Quotedc42 QuoteKoenig I'm upgrading my Kossel to Duet, but I can't get my endstops to work with the Duet. I have a set of these: But I cannot seem to configure them as NC, well if I do they never open.... When "opened" they just dim the led on the Duet but The Duet still reports it as being closed (not triggered) Do I need to get some other endstops? In that case could someone recommend someby Koenig - Delta Machines
QuoteViper97 I'll be following this... looks interesting. Me too! Does this: "E1 motor current controlled by the SAM3X8E DAC0 channel" mean that you can dynamically control the current to the stepper, like using a larger current for quick accelerations (retractions) and a smaller one when there is normal movement to prevent the extruder from grinding into the filament? If so, that is a featureby Koenig - Controllers
I'm upgrading my Kossel to Duet, but I can't get my endstops to work with the Duet. I have a set of these: But I cannot seem to configure them as NC, well if I do they never open.... When "opened" they just dim the led on the Duet but The Duet still reports it as being closed (not triggered) Do I need to get some other endstops? In that case could someone recommend some good accurate ones pleby Koenig - Delta Machines
QuoteTehStranger bump Here's a good video-tutorial using M666 and M665 command:by Koenig - Delta Machines
Quoteo_lampe It´s probably to flexible?! I thought the same about printing the corners of a Kossel 250 delta. -Olaf So ABS is the only thing good enough for that... I didn't think of that at all, I was more concerned about the heat. Don't think the pieces I've printed so far flexes much, don't have any ABS to compare with though... On the thought of a 250 delta, still going to use 2020 forby Koenig - Reprappers
As the title says. Would PETG be viable to use printing a new effector for a delta? Or will it melt from the heat? The specific PETG in question:by Koenig - Reprappers
QuoteTehStranger Quotedc42 Try reducing the feed rate in that G1 command. 8000 is rather high and may be difficult to achieve if your motor currents are not quite right. So try 3000. I tried that already, same problem only it goes slower Have you put correct length of the rods in configuration.h? And/or correct steps/mm?by Koenig - Delta Machines
Quotedc42 Higher gear ratios such as 5:1 should be OK if you use a short motor, so that you can get good acceleration without excessive filament drive force. HTH David I have a planetary gearbox with a ratio of about 5:1 and a short motor and this works very well with PLA but not so good with PETG. When I drive it at it's rated current ~1.7A the PETG filament tends bow to bow and curl up insiby Koenig - Reprappers
Quoteo_lampe Hi guys, just want to know if there is a "golden cut" regarding decreasing stepper torque at high RPM and the extruder gearing? I know about current limited BLDC motors, that the torque is constant from 0 to 50% of the RPM range and from 51-100% the torque decreases more or less linear. How about steppers? Insanely high gear ratio could put the stepper in trouble, a direct drive slowby Koenig - Reprappers
Quoteelwood127 Without having one of each in hand to measure your asking alot. Why not just get a fan bracket like this. It works great for me. My $20.00 hotend came with it. I just so happen to have one of his IR-sensors as well, wich this is designed for. My thinking is you would only need a E3D clone to measure on not both, and I would be happy to provide the measurements. Total height (uby Koenig - Reprappers
Quotedc42 QuoteKoenig The 0.9 motors seems to increase the surface quality quite a bit looking at the pictures, would 1/32 steppers make the same difference? 1/32 drivers might make some difference on 1.8deg motors, but probably not as much. Microsteps are less accurate than full steps, and the incremental torque for a 1/32 step on a 1.8deg motor will be around half the incremental torque for aby Koenig - Delta Machines
Quotecman8 What are people settings in Slic3r? I would like to comapare see if I can get my prints even better. That all depends on what is to be printed, material used, if you aim for speed, looks, ridgidityby Koenig - Delta Machines
Quotemitrut Hi, What driver do you think is the best to control a Nema 17 motor?? The motor references are: Step angle 1.8 Rate voltage 3.4V Rate current 1.7A Phase resistance 2 Ohm Phase inductance 3mH Holding torque 4000g/cm 0.40Nm Lead wire 4 What is the difference between a4988 and DRV8825 ?? What do you recomend? The DRV8825 have 1/32 microstepping vs 1/16 for the a4988, the DRV8825by Koenig - Delta Machines
Quotedc42 I have just published a new blog entry describing some upgrades to my Kossel derivative, including 0.9 degree/step motors. It's at . Interesting reading! The 0.9 motors seems to increase the surface quality quite a bit looking at the pictures, would 1/32 steppers make the same difference? I can tell you that the motors from steppersonline does not a D-cut shaft either, but they wereby Koenig - Delta Machines
EDIT: SOLVED! A friend of mine with access to Solidworks fixed it for me! Hi! I humbly ask someone to redesign dc42's "Hotend_fan_ir_e3dv6-v1.1 to fit a E3D v5 clone. Tried myself, but given I'm no programmer or otherwise versed in such matters I just feel it would take me too long.by Koenig - Reprappers
Quotethevisad For extrusion, you want to buy directly from Misumi. They will custom cut any size for you and give you price breaks on the overall length you buy. 2 pieces will be cheaper then 1, etc. Search the site for part number HFS5-2020-SIZEYOUWANTINMM (ie HFS5-2020-350 is 350 mm). That is series 5 20-20 which is what we use. Seems I as a private person cannot shop from Misumi-Europe... "Pby Koenig - Delta Machines
Quotethevisad For extrusion, you want to buy directly from Misumi. They will custom cut any size for you and give you price breaks on the overall length you buy. 2 pieces will be cheaper then 1, etc. Search the site for part number HFS5-2020-SIZEYOUWANTINMM (ie HFS5-2020-350 is 350 mm). That is series 5 20-20 which is what we use. Would 350mm suffice to fit a 330mm bed? I see it varies betweenby Koenig - Delta Machines
I bought one roll of PETG from reprap.me because I wanted a plastic that don't smell (as I have the printer in a small apartment where unfortunately my girlfriend also resides) but can stand some heat as I had at least one effector (for a delta) to print. I had a real hard time finding good settings for it. In the end I changed the throat of the nozzle to one with PTFE-lining, after that it starby Koenig - Reprappers
QuoteSlowFoot Quotethevisad .............. 1. Are you comfortable with soldering and assembling various electronic components? 2. Are you comfortable with compiling and installing your own firmware from the Arduino platform? 3. Are you comfortable around a toolbox? Meaning the tools in it, screw drivers, wrenches and how to properly use them? 4. Are you capable of understanding and diagnosing isby Koenig - Delta Machines
Quotedc42 I ordered some 0.9 degree steppers the other day wich I think is my next step, but I think at that point I will have to go for the duet as well to be able maintain a reasonable high travel-speed of the effector. I hope you didn't make the same mistake that Folger did of using 12V low current motors. I've identified a couple of suitable models and bought some. Hopefully I'll get a chancby Koenig - Delta Machines