Well as I await parts I will be working on a few issues and also designing some parts.
What I did not mention in the last part is I managed to drop the control box moving the printer back into the cave as it’s so big and the doorway is so tight. it is back in the cave no so I need to do a strip down and see what’s making my Y-axis go in reverse.
I have a feeling it’s damaged cable or end stop both are on order so should start on this shortly as really thought I had come to the end of the update journey. But no it’s become a paperweight well hopefully not for much longer.
So in part 3 plan is as follow.
- Fix reversed Y-Axis after drop
- Time to invstigate whilst i wait for new bracket
- Fit proper X-axis linear rail bracket.
- Reinstall hotend with direct drive & Install new hotend part cooler mod
- Print a camera mount:
Fixing the reversed Y-axis:
this was working right till the control box that was balancing on the bed fell off and dangled. now the printer when homing goes in reverse. very odd I have ordered a new wiring loom and end switch. going to start by swapping the bent up end stop. that main pull was on and replace y loom fingers crossed. The end stop has arrived going to fit it now and see if that fixes the issues. If not back to waiting for the loom.
Looms arrived was the Y-Axis end stop wiring has broken out with the old in with the new.
Installing the updated motor mount and bed upgrade:
After ruling that wouldn’t fit the mods and I didn’t think they would fit.
I changed my mind and thought what’s the worst that could happen? So have fitted both the bed wasn’t too bad once I had lined up the centrical nuts up. I then added the new motor mount this wasn’t as much fun, as mounting it needed some parts that were not included. fist up need M5 T-Nuts luckily I had some, countersunk m5 screws again luckily I had these. right now to reattach the Y-Belt to the motor and the bed. for F#&k sake the belt is 100mm too short. looked through my draw of printer parts and spotted gt2 belts was a loop cut i and then rethreaded the bed. ok no to reattaching the end stop it wouldn’t fit as the holes in the bracket are for the raw small micro switch so have mounted the original end stop back in place if this causes issues can modify the end stop to fit on the brackets with old bent up microswitch scavenged for bits let us see hopefully not but have a backup plan.
all back together and homes ok so now for the next part of the project.
Time to invstigate whilst i wait for new bracket:
Now that I have a working printer going to do some more testing to see why it’s not printing right.
right has put a spirit level and my z was out slightly so have adjusted one of the rods. and the new result is better but still off. Hoping on the bracket to sort this out a bit better.
Just waiting on the arrival of the X-Axis bracket now as I am sure there that that is also compounding this. So as you might have figured I am doing other bits whilst I wait and updating this post as I go. Hoping by the end this will be an awesome printer.
The bracket is in the UK just waiting on delivery so probably in 48hrs time. so time to strip off The offending bracket and strip down the hot end ready for the new bracket to arrive
Fit proper X-axis linear rail bracket.
Out with the v2 bracket as there’s a 5mm difference between the centres. as you can see I have removed the modified direct drive hot end as I think this is also the issue with print being fine on one side and in the bed on the other. time to add the bracket and fit the 2 screws. before moving on to the hot end and direct drive. it fits but!! mgn9 rails kit not 12 argh never mind ordered new rail so will sort this out next week.
Reinstall hotend with direct drive & Install new hotend part cooler mod.
I have repopulated the direct-drive motor I have rotated the motor for cleaner wire management. I will now reattach the hot end and fit the modified parts and hot end cooler as it uses existing fans and screws. I had to get my craft knife on it to make it fit but fits fine
I have reattached the BL Touch need to measure the offset form probe to the sensor in the x-axis its -41 and in the y axis, it – 5 so will need to recompile merlin to get it working to make a note of the setting for later. I am already going to need to do this when I add other functions to the board that i will cover in the next post,
Ok next issue
just did a test moving the extruder head to make sure it homes ok and there is a bolt head hitting the z-axis bracket so I have solved this by swapping it for a button head bolt that now makes contact with the end stop so homes fine.
Right, let’s run a bed visualizer scan and see how it is now.
So out with the solid mounts and I think i will be adding back the springs if i can find them if not will order a set and go back to configuring it manualy.
So back to my box labled printer parts to see what i can find as i have a feeling i saved my springs. YES I did saveI them so will fit them going to to look for some nylock adjustment wheels on thingivers so i can lock them in possition
me being me put the springs back in and spent a hour getting bed as flat as i could before i set saving the mesh and dong the z offset.
Time to print a camera mount:
I am using a c270 Logitec camera as I do on all my printers as nice and cheap. doh printed the wrong parts need to find another fixing bracket as printed vertical mount instead of horizontal one never mind. Just a few more hours and then will cannibalise a second-hand c270 that I have ordered so inserted about £24 on amazon and got it for £13.
I have used this one before and it worked well so I pre-printed this design that can be found here. All you will need is some m4 nuts bolts and 4 t-nuts is fixed to the framework like so.
ok, it’s probably going to vibrate like a bitch but I’m game for a laugh lol.
Right now up to date with all mods, there are more to come but going to make sure I have a functioning printer before I go splash out on any more parts.
Calibrate and do some calibration prints without issue,
Now that all is working let’s start to play with calibrating the machine and getting it all working right. so first up is a bed levelling program not sure if I need to run this at the start of the print each time. can make it fewer touchpoints and then to calibrate z offset height.
Still needs a bit of a tweak I think will do a few more adjustments to the springs to get it just a slight bit more level as seems beds off a slight bit. I now remember the pain of manual bed levelling but hope it will be worth it.
made some firmware tweaks let see if this fixes the machine. getting there nearly dialled in just got to drop the head a few 0.01s and we should be good for a benchy test.
Success i have a printed bentchy will be looking at it properly when i get home later.
so got home had had 1 layer shift so have tightened up the belt and run the print again. now yay had a filament jam and a tangle that made the print fail halfway through so I have decided to 1 make a better spool holder for the printer and 2 go back to sold standoffs or silicon ones so some play but can be locked in a level position.
so whilst I wait for parts again printing spool holder.
It all looks like a good time to print something bigger before I try doing 1 day 12hr prints on it.
eureka is all working well now to do some calibration prints to make sure all is well in 3d printing land.
so after 5 calibration cubes and a benchy or 2 or 3, I think I am nearly bang on as level as I will get it with a bl touch across the bed.
Conclusion to part 3
Now that I have a working machine I am going to turn it into a pro by losing the control box.
don’t worry this will be part 4 as having a working printer that’s improved the prints and has improved the quite ness of the machine, not the control box but that will be part 4.
but back to the big print
well, about 2 hrs in and it’s printed 2 layers a little bit of stringing but let’s see going to risk leaving it alone for 2 hr or more. ok came back 6hrs later and yes it’s still working I am amazed my self oh well 1 day 3 hrs left on the print.
Morning all well been printing for 23 hrs now and still going a strong slight bit of warping not bad and won’t affect the massive print this is side 1 of 2. Apparently, 23 hrs to go but it’s 61% complete so I think it will be less.
Happy the machine is working right so will show the finished side a put a pin in part 3 get ready for part 4 more modifications coming up going to order Y linear rail upgrade so we can start speed testing.
right, this is the end of part 3 as 35 hr print is complete and looks great. did thteh enw feet over night and now doing the rigth hand side so another 35hr print.
then wehen i get back from wales i will print the lids, and start adding the electronics.
but thats going to be part 4 over all its working well so let see how we go now 1% in to next large print.
Part 4 will be all the 3d printed parts and part 5 is going to be the linear rail conversion on the y-axis.
next post in the next week or so.