1 Topic by Staffordknot

  • Staffordknot
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Topic: Heated chamber... Whats your next mod?

I'm currently looking at heating the print chamber to around 60 / 70C with a hope of getting better adhesion, less curl without having to spread the abs like butter to the print bed and hopefully print to the extremes of the print bed.

I'm currently upgrading my print bed to a qu-bd one and lawsey's bed mount for it adjusted for SD3 size.

I'm waiting for my e3d print head and Bowden setup to be delivered.

I'd like to look at the z stop system. Its ridiculously hard to adjust, i would like some automated system with perhaps a micro stepper motor to control it say by 0.05 micron increments. Must be possible with an Arduino fairly easily? Perhaps with some sort of automatic adjustment from the print head?

Also a dehumidifier for my filament store

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2 Reply by elmoret

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Re: Heated chamber... Whats your next mod?

Why a microstepper? You already have a stepper on the Z direction! Just do it in software!

Filastruder - the robust, inexpensive filament extruder
E3Dv6 All Metal Hotend - the premier 3D printing hotend

3 Reply by Staffordknot

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Re: Heated chamber... Whats your next mod?

True... Just got to figure how to do it! Must read up more on gcode. I was thinking of either some sort of capacitance sensing with the extruder nozzle or could u just just the nozzle as a contact onto a copper strip to make the switch? What i really want to be able to do is adjust the print height as its printing the first layer so u can test the distance on the fly.

4 Reply by Staffordknot

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Re: Heated chamber... Whats your next mod?

If i draw a zig zagging pattern backwards and forwards and slice it. Could i insert a cgode command manually to move the z axis down 0.05mm on each pass of the zig zag?

How would i go about it fine gentlemen?

5 Reply by nlancaster

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Re: Heated chamber... Whats your next mod?

I am working on trying to figure out how to get the z-stop to read off of the print surface instead of from the bed support.

6 Reply by adrian (edited by adrian 2013-06-17 01:33:17)

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Re: Heated chamber... Whats your next mod?

The 'hacking for the sake of hacking' in me says that surely you can do something with Flex-Sensors.... smile smile

https://www.sparkfun.com/products/8606

(Tis a shame their far too inaccurate for the task.... but it would be a nifty way to do it smile )

Re the heated chamber.. easy enough to do.. just get a basic heating element, a temp-sensor (I'd just use a couple of LM35's... 3 at equal distances across the cube to provide temp 'zones'...) and then throw it altogether with some PID (the standard arduino PID library should handle this no problems).

7 Reply by lawsy

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Re: Heated chamber... Whats your next mod?

Next mod: cable chain parts will be posted tonight...

lawsy's Website

8 Reply by 2n2r5

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Re: Heated chamber... Whats your next mod?

haha, i was wondering if someone was going to try that

SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

2n2r5's Website