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TEVO Little Monster Owners Group

91 Topics 50 Things 414 Members

Recent Topics

Problem with Cura; printing starts too high.

by RitchievanDaal

Hi!

Recently I bought a Tevo Little Monster after the succes I had with the Tevo Tarantula,
However I do have a problem with Cura,

Whenever I prepare a print in Cura 3.1 the print always starts about 5 mm from the buildplate, which is wierd, ( I've tried several printer profiles as well as several firmware flavors, but to no succes)
I had the same problem in Slic3r but in Slic3r I was able to alter the Z-offset in the printer profile itself and it works,
The problem being with that is that Slic3r itself is quite limited...

Cura 3.1 has no such setting to my knowledge, and I already tried to change the starting G-CODE, but to no avail with really counter intuitive results...

For example this is the normal start G-CODE of a Deltabot profile;
G28 ;Home
G1 Z15.0 F6000 ;Move the platform down 15mm
;Prime the extruder
G92 E0
G1 F200 E3
G92 E0

I then altered that to;
G28 ;Home
G1 Z15.0 F6000 ;Move the platform down 15mm
;Prime the extruder
G92 E0
G1 F200 E3
G92 Z-5.1 E0 (-5.1 referring to the approximate distance it starts too high.)

What happened was that the printer even started printing higher than it already did, but not by 5.1mm but by something like 20mm even, I then tried to swap it to a positive number, but actually the same happened.
I really can;t make heads or tails of it,

LAter I tried the following;
I changed it to a G1 command, which does work. But then it just moves to its actual 0 position (now Z-5.1) and then when it starts to move to its first coördinate it moves back up 5.1mm again...

I've also examined the G-CODE files themselves but I can't figure it out,
Does anybody have the solution to this problem?

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Auto-calibration faulty after 2 years

by RitchievanDaal

Hi Guys,

So Back in 2018 I purchased my Tevo Little Monster,
Contrary to many hate posts about the machine I;ve actually been very happy with it,

The only thing I altered on it was the occasional thermistor,

Now 2 days ago the printer started to make a very harsh an agressive sound, as if the carriage was bumping into something,
at first I though this was because I was running smaal/thin prints at 140mm/s
But the sound persisted even when turning the speed all the way down to 50mm/s.

It turned out the X and Y carriages had a bit of play along the C-beam, I adjusted this and did an autocalibration run,
However the bed leveling now is way off, I don;t have any pictures right now, but lets say it prints a circle, starting at the Z-tower CCW, it takes a dip close to the X tower, then rises again between the X and Y towers whilst it prints quite allright on the rest of the bed,

This really puzzles me, I tried recalibrating multiple time,

  • Cleaned the bed meticulously,
  • The end stop probes/set screws are all set within 0.03mm deviation from one another (changing the lengths of these screws doesn;t change anything too by the way).
  • All the bolts on the entire machine are secured.

Could the BLTouch suddenly have broken?
Am I missing something hard-ware wuse, since this occured after altering the hardware...
I never had these problems with it before...

Any thoughts/advise?

I don't have any pictures or G-codes available right now, but if needed please let me know and I'll supply this ASAP

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BLTouch v3.1 not deploying after self test

by Ddocherty

Hi,

I am having problems with my new BLTouch, its a v3.1 as opposed to the v2.2 I used previously. When I start the printer (with the hotend lifted) the BLTouch does its self test as expected and glows red (no blue in sight), however, once I try to start printing the pin does not drop and the nozzle crashes into the bed.

can anyone shed some light on the solution to this problem?

thanks

BLTouch
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Tevo problem

by zanatory

So i change any single part that i have at home of my tevo and he still not running the stop printig in middle of a print and show -50^C so i change th1 like always after the change th1 and th2 show 172°C so i was thinking mabye my mainboard get burned so i chang it aswell but with no Result. After hours changing parts and have no Result i noticed that when i put out the mainoard SD card it show th1 and th2 0°c so i change the card but it looks like i´m to stupid to get the firmware on it i used the update instructions but nothing happend the tevo go on but nothing will move , I hope someone will help me and tell me what i´m doing worng!

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Tevo Little Monster - Commands from Touchscreen not working....

by irocc

Please help - the touchscreen is working (everything that needs to be on the screen is there.... it goes into the menu options) but nothing is happening if for instants "Home" is pressed - Everything is working fine when I run a command from a pc thru the usb port.

Thanks

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