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Re: VENT YOUR PRINTER! DO IT NOW! - 3 years ago

Funny, both sides of the pond, same rambling from the anti vaccine crowd ! DirtySteve, you should REALLY get this printer out of your room. Not just the chemicals, but magnetic fields can interfere with brainwaves. Since the beginning and not being a MD (I have some in my family though) I have been watching this youtube . Spot on.

Re: A Very Different Extruder - 3 years ago

Quoterq3 .. A piece of paper, a pencil, and some trig tables will confirm the figures. Or maybe you can even use a calculator? I can confirm the angle you computed is correct. Not bad if you used trig tables Will check back in a year.

Re: A Very Different Extruder - 3 years ago

QuoteVDX ... its the combination of the 3 "slanted" bearings, what's propagating the filament, when rotating So ? Where is the hot end, and all the rest ? Seriously, I know how this "works", not a new idea. What would be new is a working and if possible better extruder ! Someone who boasts: "Very repeatable, and accurate to 125 nanometers (16 microsteps and a 1.8 degree stepper. 62.5 nanom

Re: A Very Different Extruder - 3 years ago

Where is the extruder ?

Re: Noisy power supply fan - 3 years ago

Quotethe_digital_dentist I'm out... Just when it starts to be funny ?

Re: Noisy power supply fan - 3 years ago

QuoteDragonFire 2) WD40 is a contact switch cleaner. Brushless motor with preferably no dust. Think about it... Indeed, nothing like a good contact cleaner for a brushless motor ! Perfect to improve the contact between the bearings and shaft too !

Re: Help with designing a belt tensioner - 3 years ago

QuoteMechaBits where's your core XY MKSA? [1.bp.blogspot.com] In this pic you can just about see the belt tension point and single screw, i have a closed loop belt on here, though it doesnt need to be, it makes it easy to pull the loop tight. I don't have a CoreXY. Just have a look at the "Prusa" of the OP. It has more rails and Al profiles than a CoreXY but arranged in a quasi erratic way a

Re: Help with designing a belt tensioner - 3 years ago

Quotedrmaestro Any suggestions on which CoreXY models to choose from? For example, the one from Digital Dentist who is active here (see the CoreXY threat):

Re: Help with designing a belt tensioner - 3 years ago

Don't try to build from scratch, just follow the instruction for a proper working machine. The reference you gave on Thingiverse is a good example of a bad design hiding its flaws with a truckload of "high end" parts like Al profiles and linear rails (cheap junk most probably) and its unnecessary complexity.

Re: Help with designing a belt tensioner - 3 years ago

With all these linear rails and Al extrusions why not build for example a CoreXY based on a proven built ? Only a couple to choose from, so the choice is easy.

Re: Mesh bed leveling skeptic - 3 years ago

I am an antiseptic

Re: 3D touch level sensor fix, turn it in a reliable and high accuracy sensor - 3 years ago

Quoteleadinglights Quote from 1st April QuoteMKSA ......... No, a properly built machine doesn't need it. ....... Quote from 2nd April QuoteMKSA ......... I use ONE sensor integrated in the print head carriage to determine Z0 when the nozzle touches the bed, ...... So was the first reply a case of "do what I say, not what I do", or was it an April Fools joke? Mike Or you simply misundersto

Re: 3D touch level sensor fix, turn it in a reliable and high accuracy sensor - 3 years ago

Quoteleadinglights MKSA seems to be unable to see that that lazy users not setting their printers up correctly is not the same thing as bed sensors not being useful tools. If I change a nozzle or build surface I will check the level and even the flatness with my sensor(s) Mike Mike doesn't seem to understand that I understood it from the start. I use ONE  sensor integrated in the print head c

Re: 3D touch level sensor fix, turn it in a reliable and high accuracy sensor - 3 years ago

Quotexpsion a bed leveling sensor is one of key tools to achieve consistent printing efficiency..... No, a properly built machine doesn't need it. (Delta is an exception). Saves time and trouble too.

Re: Weird problem with idler pulley - 3 years ago

Looks like a dead bearing to me. Considering the poor quality, the fact it is undersized for the load applied (worsened by the use of a steel core belt), its early demise is normal.

Re: Will this kind of design work? - 3 years ago

NO

Re: Preventing excessive gear wear on Wade extruder? (lubrication, retraction, etc.) - 3 years ago

Quoteqrp-gaijin .... Just as a matter of curiosity, what are the major disadvantages of the Wade extruder compared to more modern extruders? Long-term reliability? Weight? Extrusion consistency? Just refer to "qrp-gaijin" posts ! That and what you just mentioned.

Re: Preventing excessive gear wear on Wade extruder? (lubrication, retraction, etc.) - 3 years ago

QuoteMJLew If you are unable or unwilling to use a better extruder then perhaps you could print an improved version of the Wade extruder, there are several on Thingiverse, e.g. Even this "improved" extruder is not worth the pain considering the availability of good metal/nylon gears to build a proper lightweight extruder or buy a good one.

Re: Belts pitch: 2 or 3 mm ? Your opinion ? - 3 years ago

Different pitch like different modules for gears !

Re: Marlin Probing issues - 4 years ago

The op didnt bother to search the forum. Now he will have to ! BTW you don't need a Btouch you need to build a proper machine After that many years about time isn't?

Re: Marlin Probing issues - 4 years ago

Post at the right place!

Re: Water Cooled Cold End tests - 4 years ago

Re: DiffBot - Differential Screw-Driven XY Gantry - 4 years ago

@boggen79 This thread has been dead for more than a year ! Let bad ideas, unsubstantiated claims rest in peace for fear that like vampires they pop up again

Re: Why is know now welding their printer frames CoreXY would benefit? - 4 years ago

Quotegolfwolf Another interesting question along those lines, why aren't more people casting their frames with vibration damping epoxy+granite composites, in 3D printed molds? Because it is overkill ! A good choice for REAL CNC though. But a slab of concrete is a good base to build a rigid AL frame on it. Note a flexible frame is a blessing for the majority as it allows for a poorly designed

Re: Trampling the axis rods? - 4 years ago

Check if these 8mm are stainless or hardened steel, with a file. If the file bites, it is SS or low carbon junk. Most probably SS as chinese use them for their cheap kits. These are too soft and unsuitable as guide rods with the ball bearing LM. Besides most are bent and not even the correct diam may be to be sold as 8mm for the World and 5/16 inch for the US ! In that case you need to buy th

Re: Revived a Dremel 3D20... Duet 2 Wifi, PanelDue, kinematic bed, hot swap PCB - 4 years ago

QuoteMechaBits 2 springs at the front look like they would tilt the bed clamp, what stops that the glass sandwich? I saw that too plus other issues. Anyway.

Re: Revived a Dremel 3D20... Duet 2 Wifi, PanelDue, kinematic bed, hot swap PCB - 4 years ago

Quoteleadinglights As far as I can see, your kinematic mount should work satisfactorily although you may find unwanted behavior with heating or cooling of the build stage.... Mike No, it doesn't.

Re: Revived a Dremel 3D20... Duet 2 Wifi, PanelDue, kinematic bed, hot swap PCB - 4 years ago

Quotedoublec4 QuoteMKSA - A steel acorn nut against a plastic surface is not a very good choice for such mount. - Looking at the bed, part 22 roll mount made out of plastic, the way it is attached to the glass/heater,composite plate can you explain how it is a "kinematic mount" ? I printed those black mounting pieces from nylon carbon fiber. There *should be* no relative movement between the ca

Re: Revived a Dremel 3D20... Duet 2 Wifi, PanelDue, kinematic bed, hot swap PCB - 4 years ago

- A steel acorn nut against a plastic surface is not a very good choice for such mount. - Looking at the bed, part 22 roll mount made out of plastic, the way it is attached to the glass/heater,composite plate can you explain how it is a "kinematic mount" ?

Re: Brake vs. shorting stepper coils - 4 years ago

TR8 in 450mm is unsuitable. TR12 and above would be OK. Bed leveling with 3 lead screws and motors ? Deja vu ! Indeed the very same set up has already been proposed and discussed here. Too bad but so far and unlike the "chicken and egg" that is real and works, these proposals went the path of the Dodo bird and are buried in this forum. Fact is, to make it work needs expertise and knowledge