Tevo Tarantula USB connection issues Hello everyone. I'm really hoping someone can help me with this issue, when I connect my laptop to my new Tarantula printer it will connect and disconnect and just keep doing it in a loop. The LCD screen will go blank and come back on. Both loop together. When I try to connect with the software it tells me the com port is in use by another program. This happens with every com port I select or change the use to. I am out of ideas with this one. I would just like to use my first 3D printer. https://reprap.org/forum/read.php?4,802577,802577#msg-802577 Wed, 19 Aug 2026 16:43:07 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?4,802577,802789#msg-802789 Re: Tevo Tarantula printer USB connection issues https://reprap.org/forum/read.php?4,802577,802789#msg-802789 CGLee65 Reprappers Fri, 29 Dec 2017 04:42:42 -0500 https://reprap.org/forum/read.php?4,802577,802783#msg-802783 Re: Tevo Tarantula printer USB connection issues https://reprap.org/forum/read.php?4,802577,802783#msg-802783 Dust Reprappers Fri, 29 Dec 2017 04:04:28 -0500 https://reprap.org/forum/read.php?4,802577,802778#msg-802778 Re: Tevo Tarantula printer USB connection issues https://reprap.org/forum/read.php?4,802577,802778#msg-802778 o_lampe Reprappers Fri, 29 Dec 2017 03:49:51 -0500 https://reprap.org/forum/read.php?4,802577,802769#msg-802769 Re: Tevo Tarantula printer USB connection issues https://reprap.org/forum/read.php?4,802577,802769#msg-802769 CGLee65 Reprappers Fri, 29 Dec 2017 03:10:18 -0500 https://reprap.org/forum/read.php?4,802577,802763#msg-802763 Re: Tevo Tarantula printer USB connection issues https://reprap.org/forum/read.php?4,802577,802763#msg-802763
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Also I cannot get the feeder motor to respond at all. Unless I plug it in to something like the z or x axis spots.

You have to heat up the extruder above the safety level ( ~170°C) otherwise the extruder wont move.
If you dont have filament inserted or deinstalled the nozzle/hotend and just want to test the extruder, you can use M302 to allow cold extrusion.]]> o_lampe Reprappers Fri, 29 Dec 2017 02:54:07 -0500 https://reprap.org/forum/read.php?4,802577,802684#msg-802684 Re: Tevo Tarantula printer USB connection issues https://reprap.org/forum/read.php?4,802577,802684#msg-802684 CGLee65 Reprappers Thu, 28 Dec 2017 10:34:37 -0500 https://reprap.org/forum/read.php?4,802577,802683#msg-802683 Re: Tevo Tarantula printer USB connection issues https://reprap.org/forum/read.php?4,802577,802683#msg-802683 CGLee65 Reprappers Thu, 28 Dec 2017 10:28:19 -0500 https://reprap.org/forum/read.php?4,802577,802645#msg-802645 Re: Tevo Tarantula printer USB connection issues https://reprap.org/forum/read.php?4,802577,802645#msg-802645


If its a mks gen 1.4 board, then the "jumper block" near centre is a ISP header, not jumpers at all. (used to install bootloaders on cpu)

Re endstops...

there are 3 options for it not working.
1) firmware is wrong.. I presume your using something provided and not configured yourself? Got a URL for it?
2) endstops are not working, check with a multimeter, what type do you have? picture?
3) your controller board is broken.. The endstop IO pins are just not working. Picture of controller so we can check your wiring?
]]> Dust Reprappers Thu, 28 Dec 2017 06:55:51 -0500 https://reprap.org/forum/read.php?4,802577,802641#msg-802641 Re: Tevo Tarantula printer USB connection issues https://reprap.org/forum/read.php?4,802577,802641#msg-802641 CGLee65 Reprappers Thu, 28 Dec 2017 06:29:34 -0500 https://reprap.org/forum/read.php?4,802577,802639#msg-802639 Re: Tevo Tarantula printer USB connection issues https://reprap.org/forum/read.php?4,802577,802639#msg-802639 CGLee65 Reprappers Thu, 28 Dec 2017 06:27:10 -0500 https://reprap.org/forum/read.php?4,802577,802631#msg-802631 Re: Tevo Tarantula printer USB connection issues https://reprap.org/forum/read.php?4,802577,802631#msg-802631
make sure no endstops are being touched and send a M119, its should respond saying endstops are open

manually hold down the x endstop and send another M119 while holding the endstop down

Does the printer now report X endstop triggered?

NB if printer resets or stop talking when endstops is pressed immediately power off everything.

Endstops work by connecting two pins together, normally signal and gnd, but if you manage to put them in backwards on the controller you connect +5v to gnd and the controller stops talking

If I've found the same model as yous there should be 6 endstop plugs, you need to use the ones labelled -x, -y and -z]]> Dust Reprappers Thu, 28 Dec 2017 05:21:12 -0500 https://reprap.org/forum/read.php?4,802577,802610#msg-802610 Re: Tevo Tarantula USB connection issues https://reprap.org/forum/read.php?4,802577,802610#msg-802610 CGLee65 Reprappers Thu, 28 Dec 2017 03:29:36 -0500 https://reprap.org/forum/read.php?4,802577,802608#msg-802608 Re: Tevo Tarantula USB connection issues https://reprap.org/forum/read.php?4,802577,802608#msg-802608 Another reason could be the onboard 5V regulator overheating. Usually it should be disabled when you use USB power, but the controller might be faulty.
It must be replaced then.]]> o_lampe Reprappers Thu, 28 Dec 2017 03:13:37 -0500 https://reprap.org/forum/read.php?4,802577,802577#msg-802577 Tevo Tarantula USB connection issues https://reprap.org/forum/read.php?4,802577,802577#msg-802577 CGLee65 Reprappers Wed, 27 Dec 2017 18:31:15 -0500