Having figured out where the heatbed failed on the Prusa i3 Mk3 printer it’s now time to re-wire it. Hopefully in an improved manner.Continue reading Prusa i3 Mk3: Rewiring the Failed Heatbed
So I seized the opportunity to make a video of the troubleshooting process. There’ll also be a follow up video on what replaced the original cable.Continue reading Heated Bed Cable Replacement on the Prusa i3 Mk3
Building your own box fan filter is a great way to reduce the amount of dust in your workspace. And you can build it for just about the cost of the fan and a suitable filter.
I’m taking that one step further and adding in variable speed motor control inline with the box fan filter itself. For the cost of an additional triac to chop the voltage to the motor I’ll be able to trim the fan speed up or down depending on the amount of noise and airflow I’d like.Continue reading Box Fan Filter Variable Speed Fan Build
3 months ago I set out to buy the cheapest PLA filament on EBay and see if it was total garbage. And I’ve now printed off about two thirds of the spool.
What’s do the prints look like after printing out a pound and a half of plastic?Continue reading Cheapest PLA Filament on Ebay Print Quality
IGUS’s Drylin bushings (RJ4JP-01-08) worked installed in the Prusa i3 Mk3 printer. And they would probably still work to an extent if I left them installed.Continue reading IGUS Drylin Bushings Removed (for now)
Last week I was attempting use the Craftsman bench press to center drill Titanium bolts with HSS drill bits.
As you can see I was successful at drilling and an utter failure at drilling straight. In hindsight assuming that the table was square enough because it had been bolted and pinned in place was a mistake.
Continue reading Drill Press Squaring (with 3D Printed Tool)
My Prusa i3 Mk3 printer’s LM8UU bearings were acting up. It could’ve been an issue with the installation. Or they might’ve just been junk out of the box.
Regardless, it’s time to replace them. With three Igus Drylin bushings in-hand I’ve decided to swap those in on the printer, at least temporarily.Continue reading Igus Drylin Bushings: Replacing Bearings on a 3D Printer
If you need a spool holder that does the job and has an optional mounting area for a DC brushless motor, here it is. I still need some refinement of the motorization option. But it’s otherwise functional.
Sure, there were quite a few other spool holders. None of the ones I browsed on Thingiverse had a license I liked. So I created my own.
Feel free to use or modify it! If anyone has suggestions post them up and I’ll accomodate them if they’re something I need.
And I also shot a video of putting it together. Along with the features that I’ve added in so far.
If you haven’t seen it yet Prusa’s i3 Mk3 MMU 2.0 printer module offers up multi-material printing using five pre-loaded filaments with a single extruder. The magic happens with a fairly ingenious filament selector module hanging out above the printer proper.
And it works. The selector is adequate at selecting filaments and I’m not seeing much of an issue with it’s functionality. That’s barring wildly out-of-diameter filament widths (1.9mm+ instead of the spec 1.75mm).
However, there seem to be some teething problems with the software design. One of the issues I’ve come up with on that end is the auto detection and alignment of the MMU 2.0 carriage.
On start the MMU 2.0 seems to be detecting the right end of the carriage too soon. Then it hammers against the left side of the carriage when the MMU 2.0 moves back. It’s using resistance on the stepper motor driver and appears to be very sensitive.
I’ve posted two videos, the first of it working properly and the second of the failing carriage detection. If you’re curious about the MMU 2.0 or are trying to check if what you’re own printer is doing is normal here you go.
In our new series of videos on YouTube we ask an important question. Is the cheapest PLA 3D Printer filament on EBay a shrewd deal or total garbage?
Initially I’ve weighed out the filament. And over the following weeks I’ll be printing with the entire 2.2lb (1kg) spool to see if it’s worth your hard earned US dollars.
So join me in the shop to see if the lowest priced PLA 3D Printer filament is any good.