Alas, another Dollo thread update. Not much changes about the printers, but thought about sharing an general update about how the printers are behaving. Been using both of the Dollos, maybe few...
Type: Posts; User: spegelius
Alas, another Dollo thread update. Not much changes about the printers, but thought about sharing an general update about how the printers are behaving. Been using both of the Dollos, maybe few...
After taking a closer look at the slop on the axes, I went back to Marlin + Octoprint. RRF doesn't have backlash compensation feature so Marlin it is for now.
When the motors are locked in position,...
Well I swapped the SKR v1.4 Pro in for a test print. The swap wasn't too much hassle, the RRF config from Sbase worked quite nicely as a base for the LPC RRF online configurator. The Trinamic drivers...
Having a weird problem with Dollo rework: most prints come out fine, but there's this one box I've been printing and it has what seems to be a layer shift that keeps repeating on the same layer on...
Got a shroud modeled for radial fan. Positioned it below the X-beam, seems I can get away with it without reducing Y-movement much. Printed in ABS, with a load of supports. PrusaSlicers supports are...
So I did some tuning on the fan shroud, moved the nozzles closer to the hot end and aimed the outputs towards the nozzle. I printed the axial version since getting the radial version to work might...
As seen on ReprapFirmware thread, I started using RRF in my Dollo rework. After some tuning it seems to be working quite nicely. Time will tell if it's going to be my main driver. Luckily switching...
On Dollo.2, I also did some cable management. Same cable chain setup. I also designed a new RAMPS case and redid some wiring from the ATX-psu. I was having some issues with temperatures fluctuating...
On both Dollos I did some Z-axis refactoring by moving the Z-screw to the middle of the Z-rods. I saw some parts tilting slightly caused by the Z-rod being some 30mm invards and the friction of the...
On Dollo rebuild I've been experimenting with the extruder positioning. Some while ago I designed an extruder riser for my Tronxy X5S (https://www.thingiverse.com/thing:3271808) and originaly I used...
Been a while since last time I updated this thread so here goes. I haven't abandoned my Dollo journey, both of the machines are alive and kicking. Been doing some printing on both of them and also...
Been a while since last update on Dollo builds. Progress has been slow, but there's progress.
For the Dollo rebuild and Dollo.2 I did some cable management, actually had a failed print due to loose...
MKS Sbase is a nice board and Smoothieware seems to work fine. However, Smoothie lacks one feature that I consider a must with Dollo: mesh bed leveling i.e. the manual leveling. Smoothie only...
Mounted the bed properly, added part cooling fan and wired them properly. After leveling the bed and a couple of test prints I got this benchy printed:
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Looking quite good.
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Sadly the Kickstarter wasn't successful. But I guess it was inevitable, Dollo isn't the best option commercially... rather a
So the Dollo rebuild: I took a 360W 12V PSU from my Tronxy X5S (going...
Got the motor wires cut to proper length and made connection boxes for the Z and Y wires. To boxes connect the two motors in series and are mounted on the frame.
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Also...
Mounted the Sbase on the frame and tried Z-axis motor and Z endstop. Working fine, however I need to wire Z-motors in series so the movement is smooth on slow speeds. See:...
All axes are now assembled. I took some extra time with X and Y mounts, now the motor is positioned very tightly towards the rack. Even so that the movement feels quite rough when the gear moves on...
X and Y racks printed and assembled. Yellow REAL PETG, printed with Prusa MK2.5. Turned out quite nice.
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Started assembling Z-axis.
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Ain't got time to make any plans... but here are models: https://github.com/spegelius/Dollo
Installed the z-rails, sliders and bed carriage. Carriage moves about somewhat sluggishly but the slides take bit time to wear in, after that they work fine:
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Started...
Received some filament and printed lots of parts in addition to previously printed parts so that the Dollo rebuild can continue. Some of the extensios were quite brittle and I had to scrap them. I...
Found the actual reason why MK2Dollo made that artifact on the Nefertiti bust: the bed carriage was bumping on the ziptie that holds the smooth rod in place. Not sure why, might be that I've slightly...
Now that both Dollo3D.2 and MK2Dollo are more or less finished products, I can finally star working on the first Dollo expansion. Step 1, take it apart:
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Step 2 is to sort out what...
Finally got the heated bed installed on Dollo3D.2. It's a MK2B from Aliexpress, not the best option, but with a glass on top of it good enough. Added some insulation to the underside of the bed so it...