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24

The easiest way to freshen up filament is hot air, although there are other options. There is an optimal melt processing moisture level for every plastic, typically in the range of 0.1-0.2% water content by weight. But the equilibrium moisture content of most plastics in humid air can be more like 1%. As a consequence, hot air dehydration is standard ...


7

Solution - there is a set-screw and a square nut in that T-slot which holds the feeder fitting in place on the heat sink. One may well think (as I did) that the fitting is threaded into the heatsink, since it does have a big hex-head for a wrench. A small turn an the set screw lets go, the nut sliding down the slot with it. Thus when you inspect it, you ...


6

In my experience, we deal with 3M™ Adhesive Transfer Tape 468MP; high-temperature glue residue. To remove the leftover glue from my Aluminium build plate I found that it works best if I apply paint thinner. I ran out of acetone for one refurbishment so I tried thinner and white (cleaning) spirit; the latter option did not work well. However, thinner worked ...


6

Electrical engineer here. There is nothing odd about putting a PCB in an oven. Any surface mount PCB is assembled using a reflow oven which heats all the components, as well as the PCB itself, several degrees for quite some time up to the 'soak' temperature, which is 150 °C. After that, the PCB (and components, still not soldered but held down with ...


5

Storing PLAs in plastic zip locks along with Silica Gel helps with extraction of water from PLAs. If you don't have silica gel, grains of rice can be other work around for serving the purpose.


5

This is the throat block for direct drive extrusion, Anet8 is a cheap clone of Prusa printers, so it's easy to find parts for Anet printers. This is one extruder kit that may help your needs, 1 Unidades Impresora 3D makerbot MK8 Extrusora De extrusión de Aluminio Bloque de DIY Kit para Reprap i3. This is a link for Aliexpress - of course there are other ...


4

I'm posting the answer here hoping that will help anyone that encounters a similar issue. A post on another site indicated that these boards are known to be problematic. After some digging, I came up with the schematics of this part of the mainboard : I'm not an electronics genius, but clearly it's not the capacitor; so that leaves the pull-up resistor or ...


4

Cleaning up the aluminium build platform was rather easy in a three step process as I figured out: Preparation Get the old bed-surface off and any film layers that stick to the original glue. Don't bother to try to scrape off the glue, it is wasted time. Solvent To remove the sticker's residue, I first tried heat and 70% isopropyl alcohol (aka ...


3

This is part of filament drive. Anets do not sell it separately, only as a part of extruder assembly, but other manufacturers may make incompatible parts: of different size (not fitting into bracket), filament channel position, etc.


3

Can 3D printing be used for this task to make the repair any easier or more successful to complete than simply cutting a piece of plastic and (again, somehow) affixing it to the shelf? Yes. 3D printed parts can be plenty strong enough to handle the kind of load you're considering. You'll need to create a 3D model of the part you want it a CAD program, which ...


3

Baking PCB in an oven is not a good idea, I would say. I know PCBs are resistive to the heat (especially heatbeds) but, still, it sounds odd. But the real question is how baking would help. Let's leave it. If your heatbed is such bent you can do few things depending on your situation/environment. You can: Add two glass plates (at the bottom and at the top)...


2

This is more off-topic as an answer, but serves as a possible solution. Replacementlaptopkeys.com is a resource that appears to have keycaps for the model you've noted. https://www.replacementlaptopkeys.com/asus-zenbook-ux31a-db71-laptop-keys-replacement-dark-brown-black/ At seven dollars a key, it's going to be less expensive than 3D printing to accomplish ...


2

For the AliExpress part, open a dispute and attach pictures to the dispute and ask for a partial, reasonable discount. It always worked for me. As for how to test the motors themselves, it depends on what other hardware you have. For example, you could wire the motors to your printer board, and try to issue a G6 command to that motor. If you find issues ...


1

You're better off if you can get the key from Fred's link. I was impressed by the detail of a 3D-printed battery cover for electronic calipers, but I'm sure it took much work to get it right. Also, ebay has keyboards for your model.


1

If you need it to hold the thermistor in place, there are thermally conductive electrically insulating potting compounds, such as Appli-Thane® 7300 Urethane that have a temperature range of -100 to 160 °C. The newest CPU thermal pastes contain silver particles and will conduct electricity. So, it needs to stay away from leads and pads that don't want to be ...


1

The plastic looks ok. If you get the tools and pins to work on the connector, you could replace problem pins. Many of us build our own cables. If we verify the connector is Molex, you might need calipers to measure dimensions to get the correct size. You won't need expensive ones. I've seen digital calipers from \$10 to \$20. Have you already verified ...


1

I would be far more worried about damage to the wire insulation (i.e. are they nicked/cut at all or just scuffed up?) as that could potentially lead to a short circuit situation against your frame etc. Assuming no serious cable damage, motors can take a fair amount of mechanical abuse so I'd just put them through their paces with short (a few seconds) ...


1

This is one of those tricky problems where the form of the repair and the materials that you need have to go hand in hand - you need a way to fix the new rail to the shelf and you need the repair to be strong enough to do it’s job. Perhaps consider screwing the rail to the shelf - cyanoacrylate adhesive is good for 3D prints but doesn’t like low ...


1

If the backing of the build surface softens under heat, one might strap it into a contraption to heat, or just put it into an oven on a flat surface, baking it with some weight to flatten it fully. An alternate to fixing the removeable build plate itself, one might considder to buy a (spring)steel plate and glue a new build surface onto it. Such a plate is ...


1

Yes. I rigged up the following setup with blue tape and clips and a pen for tensioning, used the nozzle (unheated) to hold the center down against the bed, and set the bed to 100 °C for about an hour. Afterwards the curvature was in the opposite direction and easily compensated by clips.


1

Be aware that zip-lock bags may not be perfectly air-tight or probably humidity-tight - but much better than nothing. I have a food vacuum bagger, and have vacuum-sealed zipper type bags and placed them in the refrigerator, where they do not maintain their tight fit, i.e. air is seeping in. I haven't done a study, but bags tagged for the freezer should ...


1

a) about Is B-REP a mesh that only represents a boundary [..] ? B-Rep contains more information, see here: There are two types of information in a B-rep: topological and geometric. Topological information provide the relationships among vertices, edges and faces similar to that used in a wireframe model. In addition to connectivity, topological ...


1

Not sure if this is the reason, or just A reason, but thermocouples create a pretty small voltage for a given temperature, whereas thermistors have a larger (easier to read) change in resistance. I would expect that a thermocouple would require slightly more sensitive instrumentation to read it than a thermocouple. And seeing as space requirements aren't ...


1

Although the foundation of your question is aimed at getting an opinion, I find nothing wrong with that, as long as answers are provided with an equal foundation based on facts. I'm a fan of Meshmixer (free) but it's not well suited for this project, in my belief (opinion) as it's primarily aimed at organic modeling. On the flip side of this point is the ...


1

Since aluminium has a melting point at 600°C, you're unlikely to get it to a state where it flexes much by heating. I would doubt you even manage to aneal it (release the internal stresses). Your best option is to construct a jig which allows you to press the distortion out (or pull, using a screw in the existing holes), whilst also taking care not to apply ...


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