Quotezelogik ...Speed set to 100mm/s MAX. (yes marlin don't have double and quad step :-( ). ?< >? neverending "discussion" in german ... parts here: QuoteEd Nisley's Blog Marlin Firmware: Stepper Inerrupt timing Marlin Firmware: Stepper Interrupt Timing ...a closer look at the step pulses as the motion starts from zero on the way to 150 mm/s: Quotehardwarekiller MAX Stevon Reinhold - CoreXY Machines
Quotezelogik Edit: Or it's perpendicular axis problem between X and Y !!! Somebody have an easy way for controlling that ? I am (really) not sure what you are telling (me) but does: "Print (a lot of) large X's" answer your "controlling" needs? Those diagonals do engage motors independently (most perpendicular, linearly independent) But you are infilling and from the pics you did show I am talvon Reinhold - CoreXY Machines
Quotezelogik @jand, dont need to print exactly the same object. Can you take a picture of a top of print or/and a rectilinear filling during printing :-) Repetier bug... Maybe tomorrow i will give a try with marlin. Did you (both) see THIS QuoteRepetier (Marcus Littwin)The DRV8825 often used for 32 microstepping needs longer step high signals. So firmware is too fast. Solution is to set steppvon Reinhold - CoreXY Machines
Quotezelogik..checked Github (you even can seen my nickname around ) Sry ... usually I make a point to read all, especially the end ... just missed you! QuotezelogikI need to take photo on two print,.. Please use Sidelights (éclairage oblique) to accentuate the emerging texture and material and switch your camera to "aperture mode" with the smallest aperture you can hold steady. There will be mvon Reinhold - CoreXY Machines
QuotegenelmxI am going to print and test it out anyway... Testing "something simplified" is always a good idea... after all that's how we found out that in a simple atom there's a core (not xy though ) You may want to have a look at some of those who have gone "your" route before: Most popular corexy on the german reprap site: sparkcube ...has been built at least 50x by now. Regards Reinhold Pvon Reinhold - CoreXY Machines
@genelmx You are removing the "belt tensioner". ...possible but probably not the best of ideasvon Reinhold - CoreXY Machines
Welcome back - hope everything is amicably solved. Quotezelogik I have made many discovery... The first one, 0.9° stepper motor make really less noise than 1.8° (maybe because their are more powerfull too) . :-D So you did buy .9° motors and found them "more powerful" ? ... actually they are only "more powerful" because (I bet) they are 48mm long vs. 40mm or less in your previous design (butvon Reinhold - CoreXY Machines
QuoteYou will have a complete set of Sainsmart's most common and useful electronic components. Ob das jetzt (eher) positiv oder negativ ist mußt du selbst entscheiden... (gibt schliesslich 'ne Menge Leute die mit Saint Qualitätsprobleme hatten) ...nur google mal nach Bildern von SainSmart - habe von denen noch keine Teile in der Farbgebung gesehen... Fake vom FAKEvon Reinhold - Elektrik & Elektronik
Quotejand"foudroyante", Google translate was not very helpfull. Google translate is responsible for a lot of misunderstandings ... imho at least. look up "synonymes foudroyant" and get the feeling... I do like the design of your hotbed ... it sure is heavy, designed that way - I "knew"! With that z-stage, and as a guesstimate I'd say more than 2/3 of your printers weight now is basically stativon Reinhold - CoreXY Machines
QuoteflemingAnyhow, the printing is ongoing... ...< wow> fleming what print time did you have for THAT plate QuotejandThe Z-axis is actually quite stable... (pls don't get me wrong!) IT'S built like a tank ... what do you expect !!! Now when you stated your primary goals "up there", this "Z" fits to the design goals... ...I wouldn't call that stage "foudroyante..." though... ...canvon Reinhold - CoreXY Machines
A BIG "Thanks" from me for for the detailed reply That "Hotplate Design" of yours has obviously profited a lot from previous experience. YOU adding a BOM to your github ...will force me to buy all those parts (&build?!) From my side I could add some to stepper/driver design but you said it all... (except maybe for DirectDrive Extruder steppers & torque & 1/32 driver but this is pvon Reinhold - CoreXY Machines
Hi Jan Would you mind explaining/confirming some details of your heated table? (it seems reality is "at least in part" unlike drawing ) 0) Table size x mm x y mm (220x220) ? 1) (Borosilicate ?) Glass plate thickness h1 (3 mm) ? 2) Aluminium plate thickness h2 mm (6 mm)? 3) What sort of heater are you using? (4 different cable types confuse me ;-) ) 4) The gap between Extrusion and upper Alvon Reinhold - CoreXY Machines
- CONGRATULATIONS - ...and let's put a pic of zelogik next to that mendel Thanks for the vid ... now let it run at 150 mm/s and show us! Could you give some data as to the extruder/hotend you are using now Do your stepsticks work without any Heatsink and without fan ??? again: CONGRATULATIONS !!!von Reinhold - CoreXY Machines
QuoteVDX .. noch voll funktionsfähig und in ihrem bisherigen Arbeitsleben eher 'unterfordert' worden (Zahnbürstenköpfe zusammenstecken bzw. simulierte 'Zahnreinigung' zum Testen der Borsten) - Baujahr 1997, letzter Einsatz und Wartung 2010, seitdem eingelagert... Waren die nicht mal blau ;-) In jedem Fall viel Spaß ...und ich hoffe da ist das richtige/vollständige Zubehör in dem Schrankvon Reinhold - Projekte
Quotezelogik ... So I need to thinking a way for put extruder motor on the moving carriage for the first extruder, Hi Zelogik I'm not sure that's a good idea (for your corexy) ;-) My measured weight data: 240g Nema17_40mm (1.7A,40Ncm) 340g Nema17_48mm (2.5A,48Ncm) 360g Airtripper + Nema17_40mm 470g (my)allMetal DirectDrive 40Ncm I've just seen this one video of your corexy ... Now my x-carrivon Reinhold - CoreXY Machines
Wie VDX schon schreibt ... Ferndiagnose ist da nicht angebracht. WO bist du denn lokalisiert?von Reinhold - Allgemeines
Quoteleadinglights ... not totally convinced that I inderstand what is meant by "racking" I thought that this thread was the best place .. Mike Mike The best place to learn about the theory is actually by visiting the author: Ilan E. Moyer core-xy theory (*) The main difference between what's called an "H-Bot" and the "CORE-XY" is that an (annoying) twisting force (=raking,scratching) is elivon Reinhold - CoreXY Machines
QuotePeterKu Aber auf das schwarze Filament hast du ihn schon kalibriert? Gruß Peter Hallo Peter Danke! Kalibriert? ... im Sinne von "die Mechanik verfährt identisch" ...??? - "Ich habe für diverse thinwalls (&die Herzdose) die Temperaturen variiert (180-240°) " - außerdem versuchsweise das "Drucktempo" variiert (Cura: 20,50,100 mm/s) (alles in Bereichen wo 4043D 'druckt' (nicht immer ivon Reinhold - Extruder, Hotends & verschiedene Materialien
QuoteMogal When it come to the extruded parts, its $16 a meter here. That's for 1"x1" (25mm profiles) ... It's mostly awesome living on an island, but sometimes it really sucks. Mogal Why not contact (the original's us branch) (At least in Germany) They are used to fulfill small orders for sample "Maschinenbaumuster" (they may hope for the BIG production order though) We here in europe alsovon Reinhold - CoreXY Machines
@zelogik: If you add a video to all your pics, I'll "award" you a (german) beer (over easter I'm vacationing in port grimaud for almost a decade now ) ... but you have to tell us about "really cheap chinese chain cable" WHERE ??? Quotejand I made a few pictures pictures and put them on my google drive.... Greeeeaaaat Jan !!! ...if you need help with the LM12UU's send me a PMvon Reinhold - CoreXY Machines
Hi Jand Good to see you making progress... (I wouldn't mind more pictures (and a small video ;-) but ): Correct me I believe that with a CoreX-Y and Repetier just 1 single Endswitch is OK which Zelogic shows on (mechanical back left in my coordinate system ) BTW: Completely unexpected but I made good progress on my long overdue StarLinearMotionGuideItemProfilePortal-Printer ... (think Felivon Reinhold - CoreXY Machines
Hi After successful first steps with a homebrew LinearItemProfilePrinter the beast seems to have gone to the dark side of the force... The good ol' PLA Ingeo 4043D in pure white does produce nice nopHead Heart shaped boxes (thingiverse thing:61), as 'shiny' as the one on the right side of my pic. My new (bad and) black PLA does produce bird's nests only. The dark side of the (printing) Forcevon Reinhold - Printing
Hallo Nachdem ich die ersten Schritte mit meinem selbstgebauten LinearführungsItemProfilPrinter befriedigt gemacht habe, ist er scheint's jetzt auf die dunkle Seite der Macht gewechselt Das gute (aber teure) PLA Ingeo 4043D in weiß macht alles schön und richtig nette nopHead Herzdosen (thingiverse thing:61), auf dem Bild rechts "strahlend weiß" gut zu erkennen. Mein neues (böses) schwarzevon Reinhold - Extruder, Hotends & verschiedene Materialien
Die einfachste Lösung für deinen Reset Knopf lautet: Löte ein zweiadriges Kabel parallel zum Reset Button auf Ramps oder Arduino Mega und führ das nach draußen zum "dicken großen Knopf" KILL SWITCH Den "Kill Switch" an deinem LCD kannst du in der pins.h definieren (=auf den (richtigen) Arduino/Ramps pin legen) ...das sollte aber bereits geschehen sein wenn das LCD richtig definiert wurde. Bvon Reinhold - Allgemeines
Quote17b...Was wäre denn von der Signalform her die günstigste? Kurze Impulse oder vielleicht symmetrische Impulse? In jedem Fall eher längere: Verglichen mit TI und Toshiba hat der Allegro Chip kurze Step Pulse ... - Allegro A4988 (siehe Traumflug Zitat nächste Seite) Time Duration STEP minimum, HIGH pulse width 1 μs STEP minimum, LOW pulse width 1 μs Setup time, input change to STEP tC 200von Reinhold - Elektrik & Elektronik
Word vrolijker Jan ...my parts also always arrive on mondays...von Reinhold - CoreXY Machines
Hi No (more) News anyone ? @zelogik did you see any improvement with your DRV8825 driver? There is a YouTube video claiming "less noise with DRV8825" What stepper motors do you use? Is your setup now limited by the Extruder speed? Could you make a new printing video please ?!von Reinhold - CoreXY Machines
@zelogik What stepper motors are you using with your DRV8825 driver? (Nema 17, 40mm?, 1.7A?, ??Ncm) @all Derek from robotdigg must have had a busy day...(his morning/middle of our night) I asked him for 10+2 pulleys, a pack of mini bearings and a Nema23 Stepper... ...he quoted me 48usd for "express shipping" ... thats FOURTYEIGHT $$$ since express shipment here means "clearance fee" (~20€) (orvon Reinhold - CoreXY Machines
@jand @zelogik Thanks for your valuable comments ... the world needs even more pulleys @zelogik Sry - your quote hit it home ... this time I read the whole thread ...again but still have to ask "Finally I use 1/32 microstep driver. and not 1/16 driver." I can see "Arduino Mega 2560, Ramps 1.4(?) on it's back Raspberry pi and some green board on the back of the pi (???)" The "green board" thevon Reinhold - CoreXY Machines
I am no native english speaker either but "who cares" Let's call it "idler pulley" vs "tooth pulley" for now (know?) (which I know to be incorrect...) This is what zelogik designed: - I have little experience using bearings on the tooth-side of a pulley ... BUT what little I have says"BAD" ... so I wouldn't use a blank bearing on the tooth side of the belt but a toothed pulley. - As said bvon Reinhold - CoreXY Machines