Linear rail on Z axis

by Alex_Y

Does anyone modded I3 with linear rail instead of smooth shaft for Z axis? I want do that with minimum modification and it looks like no one did it with I3 so will have to design parts from scratch.

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3D touch sensor installation and configuration

by Jaymboii

I have a CTC prusa i3 pro B, It has a GT2560 rev A board. I've downloaded the latest version of marlin (1.9) and done the necessary changes to enable the sensor.

Gcode to deploy and retract the pin works, as does the self test, however, when I attempt to home the Z axis, without fail every time, the nozzle crashes into the bed and the probe doesn't deploy at any point

When I send M119 when the pin is triggered, I'm intermittently getting open/triggered signals. I'll send the code 10 or so times and get open, then randomly get a triggered signal, even though it should be triggered all the time..

If anyone has any ideas as to what may be the problem id be really grateful for the help, i've been at this for 3 days and no results so far.

auto_bed_leveling BLTouch BLTouch_levelling CTC_prusa_i3 Triggered
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about silicone tube inside hot end

by Jotagera3d

I'm looking for a little silicone tube used inside prusa i3 mk8 extruder but i can't find it.
Anyone knows where i can find it?

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ctc i3 pro issues

by podunk

I'm a mechanical old guy that is trying to get a ctc i3 pro printer running and have a couple of issues that I can't solve.

I believe I have a Anet board with the following info. on the chip.
board V1.0

Issues are as follows:

1) I changed the original threaded screws to a 2 start, 2mm pitch, 4mm lead screw and can't figure out where I'm suppose to change the steps to mm this change requires.

2) I can't change the hot end nozzle temp. A change is Cura does not change the temp. on the display. I does heat up to 180 F but I cannot change it.

Any help would be really great

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CTC i3 pro B to threaded rods frame

by gregorb


I'm thinking about converting frame to threaded rods frame like reprap mendel.
Ive have found this thing https://www.thingiverse.com/thing:2728742

Is there something similar, already done/tested like this thing above?


Geeetech i3 Clone
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Am8 upgrade

by BatGlenn

I've a ctc prusa and I'm wanting to upgrade it to an AM8 which is originally for the anet prusa. Has anyone went through this conversion process and if so is there anything else I need to get to make it work?

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Have you got Y axis issue?

by Alex_Y

Just have had an issue with print quality where Y axis layer's rear end surface was shifted sometimes by 1/4 mm, front surface fine. Supposed loose belt, tightened it and result was much worse. When removed belt to inspect it if something was caught and started blocking it I've realized bed carriage is running like old rusty bearing. With belt on I've though it is just stepper. Added drop of silicone sewing machine oil per balls row (4 per bearing) and realigned them. It was preassembled in kit so never touched it but apparently should.
By the way Y belt fitting to carriage is way too high, will have to print new fitting.
So if you have print quality issues check bearings.

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incorrect extruder bearing?

by Soundwave12345

I cant get enough tension on my filament (1.75 mm) but i can't tighten my extruder upgrade anymore. does any one know where to get a new, better bearing that works with the mk8?

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All motors are inverted?

by JorKsX

So my printer was working fine and everything.
I wanted to sort out that cable mess so I disconnected everything.
After I re attached all cables and checked if all axis move I noticed that when I move Y or X or Z or extruder motor, they wont move when I go ++, If I go -- then the motors move but wrong direction.
I dont know if I explained good enough but when I press auto home, extruder moves to the right up, and bed moves infront.
extruder should come to left down and bed back.

So what am I missing?
Everything was working fine before I disconnected everything.
All axis are in right place, X is X axis and Y is Y etc....

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