TILT Mechanism

Discussed here are the various tilt/ slide and Z-Axis mechanisms
pingnagan
Posts: 3
Joined: Wed Aug 13, 2014 6:00 am

TILT Mechanism

Postby pingnagan » Wed Aug 13, 2014 6:05 am

Hello All,

Im building a DLP printer, while, I see the importance of the tilt mechanism here.

I would like to get clarified for the below doubt, Please guide

How does the tilt motor gets controlled by the software, assuming Im using the RAMPS kit, where do I connect the TILT motor, Do I need some Cam shaft mechanism, have a Y cable to the Z axis, which means it would move at the same time.

If there is a better way, or If the CW software has a control by using the spare X, Y axis not used by the conventional Reprap.

Thanks a lot in advance.

adambx
Posts: 119
Joined: Wed Apr 09, 2014 6:33 am

Re: TILT Mechanism

Postby adambx » Wed Aug 13, 2014 6:58 am

Exactly, you can use the X or Y drivers for that purpose...or in my case I use the extruder.

And you will need a cam mechanism, or another spindle, or anything else for that matter that gives you the desired result :)

Even a Servo should work.

pingnagan
Posts: 3
Joined: Wed Aug 13, 2014 6:00 am

Re: TILT Mechanism

Postby pingnagan » Fri Aug 15, 2014 8:19 am

Thanks a lot Adambx. How do you configure the extruder drivers in CW to work in sync with the Z drive.

I was also confused how that sync in tilting happen's. Does Creator Workshop has setting that will send those signals, which can be used to drive the motor.

Im sure, that Z axis movements and precision would be configured via Firmware, and the GCodes will be sent by CW software, Since I have not yet implemented it, Im not sure, whether there is a seperate drive option with Tilt settings or control signals via seperate GCode.

Thanks in advance, and please bear with me, If its very basic or silly. Im new to DLP based Printers, while Im okay with FFF based Reprap printers.

Thanks again for any extended support by the experts in this forumn.

Regards,

PP

adambx
Posts: 119
Joined: Wed Apr 09, 2014 6:33 am

Re: TILT Mechanism

Postby adambx » Fri Aug 15, 2014 11:44 am

You don't need to sync the tilt motion with Z motion. after a lexer is exposed, first the tilt releases the layer and than you move the Z up (how you move it is up to you: poeple do overlifts and than go back down, i just do a simple lift by layer thickness once the tilt is half done).

Code: Select all

;********** Lift Sequence ********
G4 P500
G1 E-2.8 F1200     ;pre position cam
G1 E-2.2 F100       ;release motion
G4 P700               ;wait for 700ms
G1 Z($LayerThickness * $ZDir) F$ZLiftRate ;lift Z
G1 E-5 F1200      ;tilt back up
G4 P50
;<Delay> %d$BlankTime
;********** Lift Sequence **********


this is my layer sequence, for example.

the firmware has to be configured to match your machine settings like spindle, motor, microstepping etc...all depends on the firmware you use. (i use marlin).

i guess a good way to start would be to familiarize yourself with the CW interface and how the processing works, material parameters you can use, and the custom gcode you can inject.
Learn by doing ;)
Good luck!

pingnagan
Posts: 3
Joined: Wed Aug 13, 2014 6:00 am

Re: TILT Mechanism

Postby pingnagan » Fri Aug 15, 2014 1:06 pm

Thanks again.

I just had a quick view on the CW, It gives me choice to use any Motor, Like XY or Extruder.

But Im not so sure, how the firmware will understand that Extruder Motor is being used for Tilt mechanism. :(

adambx
Posts: 119
Joined: Wed Apr 09, 2014 6:33 am

Re: TILT Mechanism

Postby adambx » Fri Aug 15, 2014 1:44 pm

the firmware doesn't need to understand...you set it up via Gcode. you can also use any other axis as tilt.
As you see in my code the "G1 E....." command tells the firmware to use the extruder, if you use the X axis as the tilt motor, you would type "G1 X.....".
i suggest you read up a bit on GCode and how it works in general.

Cheers ;)