drayson

Modelled and printed a holder for my beloved UMO (will publish it later...) Test pending... Nevertheless, THANK YOU Robert!! Great writeup..

I recently bought a used Unimat 3 out of the 1980's - its quite small, but my plan is also to do some work on hot ends etc. What I learned: for turning a stainless steel part, this small thing is too weak to get the right pressure of the tool to cut. the Proxxon 400 is a bit better, but the Bernardo is ok from it´s size/weight. I only know similar cheapo lathes from my purchse journey which looks a bit "low-quality" to me so finally I decided to go smaller but reliable. Also a milling post is nice and for milling hotend parts enougt. I would recommend a used EMCO Compact 5 - take a look at http://www.nielsmachines.com - there are sometimes good machines available...

the new SolidWorks too - afaik...

I also have a custom json which is displayed in the add printer as it should. First please check the following: - have you defined a different/unique id? - have you defined a different/unique name? - have you defined the category? In my version I defined "my printers", so all variants are displayed in this category in the add printer dialog. Here is my working example for my UMO (which is originally a dual head machine) - the first lines of it... { "id": "ultimaker_original_single_right_CE", "version": 2, "name": "UMO SiRight Extrusion CE", "inherits": "ultimaker", "metadata": { "visible": true, "author": "Ultimaker", "manufacturer": "Ultimaker", "category": "my printers", "weight": 4, "file_formats": "text/x-gcode", "icon": "icon_ultimaker.png", "platform": "ultimaker_platform.stl", "has_materials": true, "machine_extruder_trains": { "0": "ultimaker_original_CE_dual_1st" }, Further you can use a json validator to check, if the file isn´t corrupt - if it is, it is also not displayed... Try this one: http://jsonlint.com/ Hope this helps :-)

I always change material (PLA, colors) this way to make sure to start with the new color without any mixing. I even don´t dismount the bowden, just pull. It works nice when doing at the right temperature (~90-100°C) and with the right amount of "pull" :-)

Yessss, it was a bit tricky to get the json running as I have a heavy modified UMO dual, but finally it works as expected. Only hurdle currently: if you print a part where you just need the first nozzle, the second will be heated/primed too and then cooled down - result: oozing. Workaround: two printers - one with single, one with dual setup... but this is already reported and I hope the SW team (@Ghostkeeper) get´s a fix soon...

reuse - sure... never thouht about it as its mostly run directly through the sink...

... or apply a solution of 1/3 wood glue (is also made of PVA) and 2/3 water if you dont want to dissolve your expensive PVA :-)

ich hab solche Fäden auch, wenn ich mit Z-Hop bei Retract arbeite, also die Düse um einige 10tel anhebe bevor es zu einem Travel Move kommt... hab auch noch keine Lösung, niedrigere Temperatur kann aber etwas helfen.

sorry, maybe I'm too stupid to understand it, but could you please once again explain the aim of the meshes (support mesh, infill mesh) and how they are intended to work... tried around with two models - one the print part, one the support part, but was not able to understand the process... maybe with some pictures would help too...

Thats amazing... wow... Guys, it´s obviouse... the force is strong with this one... Cant think of the epical fight I might have with my commander when I tell her that I want to start printing something...

You are lucky guys - my Cura 2.4 quits with error after trying to slice something... With a standard UMO it is fne, but as soon as I use the pre-defined dual UMO and select the second nozzle for support, it stops with the note "Cura Engine stops working"... :-( Edit: found the reason for crashing in my case. If a setting is empty (here it was the retraction speed at the second nozzle), it crahes, when a value is filled, then it works as expected...

Nö, hat er nicht :-) War ja als Unterstützung unserer Community gedacht und mich würden deine Erweiterungen auch interessieren. Excel - da kan man(n) immer was lernen :-)

Ahhh - great... Could you also try to get a confirmation on the camfer angle? 60 would make sense, but I doubt it is...

yep, still have them ,thanks. what would your guess be as to what material the plate is? Not sure. Fells heavy for aluminum and since the printhead small boards is touching it I would suppose is some hardened steel (specifically for the color and how hard is to scratch it). hardened steel or stainless steel seems clear as the counterpart of the core is also made of steel - any other combination would wear too easy...

thanks for that hint, but as far as I can estimate from the pictures I have from the core, it seems to be 45... could you or anybody else confirm by measurement?

Whow, great work! Got my pin connectors last friday, still in progress of designing. Aim: dual head for UMO @ 24V :-) B.t.w. - as my core hasnt arrived yet, could you please assist with a short measurement? on which hight e.g. measured from the nozzle position is the connector mounted?

Great! Danke! :-)

Manno... geile Idee... hoffe, du verscherbelst die Dinger auch extra :-) Was für Silion hast du da genommen - irgendwie hab ich noch nicht das Richtige für solche Abformanwendungen gefunden...

Dont know if it has been added to the git or internal feature tracking but hope so too... Same for support of extruder selection as the nice postprocessor of @Dim3nsineer (https://github.com/Dim3nsioneer/Cura-Plugins/wiki/Select-Extruder-plugin) is also not working any more... ... or is anybody able to take a look and port it to a 2.3 postprocessor ;-)

ordered those at ebay... damn long to wait until the parts arrive from far east.... :-( will see what arrives first - connectors or core :-) b.t.w.: does anybody know what is affected when changing an UMO from 19V to 24V supply ? Of course the LM7812 has to be changed... but in terms of PID/Steppers/FW..?

die felder waren in allen versionen von cura 2, in denen sie bis dato angezeigt wurden ausgegraut - sozusagen vorbereitet für die zukünftigen entwicklungen. lt. dem github eintrag wird das aber noch ein paar versionen dauern, bis die Funktionalitäten verfügbar sein werden.

Hi! diese Funktion zwar schon mal vorgesehen, es wird aber noch etwas länger dauern, bis es wirklich unterstützt/verfügbar wird. Ich hatte auf git was dbzgl gelesen...

Where have you stored the PVA? Could it be possible that it attracted some moisture/humidity? PVA is a pain if not stored correctly... :-)

Do you think that these parts will also work with PEEK or PTFE? With PBI I was pretty sure about that, but I can't tell with PEEK or PTFE... Ok, maybe I was'nt so precise with my explaination :-) I´l put it into German... Servus, der Ultimaker Original hat jene Teile, die das Hot End darstellen aus PEEK bzw. PTFE (sieh dir mal das Dasign an), der Ultimaker 2 hingegen hat ein anderes HotEnd design. Ich habe einen Ultimaker Original, daher war mein Ansatz, die bestehenden Komponenten, welche aus PEEK und PTFE gefertigt sind, einfach gegen idente Teile aus PBI gefertigt zu ersetzen - leider zu hohe Kosten, daher verworfen... Sooo, back to English :-) For all non-German speaking guys in short, briefly desribed the design differences between UMO and UM2 hotends...