Mike's ORDish Bot build

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Re: Mike's ORDish Bot build

Postby mike » Fri Mar 16, 2012 10:52 pm

Test prints of two different objects: 20 mm cylinders with a 2 mm wall thickness, and 6 mm cylinders.
On closer inspection, the "threads" are the inside perimeter not sticking.

Any suggestions on the best approaches to debugging printing problems?
Attachments
IMG_20120315_211517.jpg
20mm rings & 6mm cylinders
mike
 
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Re: Mike's ORDish Bot build

Postby JeremyBP » Fri Mar 16, 2012 11:46 pm

Would you upload your slic3r settings? I can have a look at those.
Then again, it may be a problem in the real world. Try printing one of these (http://www.thingiverse.com/thing:16799) and see how it works.
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Re: Mike's ORDish Bot build

Postby mike » Sat Mar 17, 2012 2:29 am

The translucent blue filament is not camera friendly!

Issue that I can see: strings between the blocks, column deformation, & the bottom couple of layers are a bit wider.

Many thanks for taking a look!
Attachments
IMG_1842.JPG
Multivariable Calibration Block, side view
IMG_1836.JPG
Multivariable Calibration Block, top view
config2.ini
Slic3r config file
(1.74 KiB) Downloaded 100 times
mike
 
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Re: Mike's ORDish Bot build

Postby JeremyBP » Sat Mar 17, 2012 1:49 pm

Looking over your settings, I have a few suggestions.
Fill density: Slic3r take percents, unlike skeinforge, which takes decimals. i.e. 20 is 20% fill, 0.2 is 0.2% fill, etc.
Temperature: Extrude at the lowest temperature possible. For those speeds, you might be able to go as low as 165. If you're running marlin, you'll need to modify the minimum extrusion temperature. Experiment to find the lowest temperature you can reliably extrude at, and use that.

Your first layers stick out because you have the z-axis set too low. My guess is that you're doing this to make the first layer stick better. Wat you can do instead is change the first layer height ratio to 0.6, or something like that. Then set your zero to when the nozzle is just touching the platform.
Give it another shot. I'll be interested to see what that changes.
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Re: Mike's ORDish Bot build

Postby mike » Fri Apr 20, 2012 3:03 pm

Haven't posted for a while, but just wanted pass on the info that I'll be taking my ORDish bot to the Bay Area Maker Faire next month :!: :!: :!:
mike
 
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Re: Mike's ORDish Bot build

Postby mxk » Fri Apr 20, 2012 4:12 pm

mike wrote:Haven't posted for a while, but just wanted pass on the info that I'll be taking my ORDish bot to the Bay Area Maker Faire next month :!: :!: :!:

Cool!! I'll be looking for you!
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Re: Mike's ORDish Bot build

Postby mike » Sun Apr 29, 2012 3:08 am

Just upgraded the Z axis to ACME lead screws and added supports for the top of the rods.
Looks like precisiontechmachining does a lot of business on eBay selling ACME upgrades for 3D printers: http://www.ebay.com/itm/110854814830
Attachments
IMG_20120428_184403.jpg
top lead screw supports
IMG_20120428_120044.jpg
ACME lead screw and Delrin nut
mike
 
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Re: Mike's ORDish Bot build

Postby mike » Fri May 18, 2012 9:46 pm

Maker Faire 3D printer trading cards:
front_reduced.jpg
ORDish Bot trading card front
back_reduced.jpg
ORDish Bot trading card back
mike
 
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Cooling

Postby mike » Sat May 26, 2012 1:17 am

A couple of picture of my current cooling setup. I tried a duct that surrounded the extruder, but wasn't happy with the loss of visibility.
I ended up going with a Ducted cooling fan and adapter ring.
The duct is modified with an additional port for cooling the back of the extruder, and shields to direct the airflow downward.
IMG_2390.JPG
Cooling Duct, front

IMG_2391.JPG
Cooling Duct, Rear
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