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3D Printer / CNC discussion thread

SugarJ

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Folding Team
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I'm using a copy of an Openbuilds Workbee kit from Aliexpress, with an Openbuilds Blackbox controller & PSU, and a 500w spindle off Amazon. I'll put links below. Mine is a 750mm x 1000mm which gives me a cutting area of about 610x750mm. It's great for wood projects, but I'm in the midst of upgrading to linear rails instead of wheels as I do cut aluminum prototypes fairly regularly and find it needs to be a bit stiffer. I'm into this one for about $1600 CAD all-in before I started buying parts for a rail upgrade. The only problem with buying off Aliexpress right now is the greatly inflated air shipping costs these days, due to the limited number of flights from China to Canada.

If you're interested in building your own, OpenBuilds.com is a great resource to get started at.

Kit: https://www.aliexpress.com/item/32910691183.html?spm=2114.12010612.8148356.4.68346319Sq6jI3
Controller: https://makerparts.ca/collections/c...-motion-control-system?variant=16052426637406
PSU: https://makerparts.ca/collections/p...24v-14-6a-power-supply?variant=16033684357214
Spindle: https://www.amazon.ca/RATTMMOTOR-Spindle-12000RMP-AC110V-220V-Controller/dp/B0814SQMMS
 

sswilson

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Doesnt that mean it was exposed to moisture for too long? maybe try the oven trick first?

I'm assuming it was moisture, but it's also from a supplier who had had some issues with brittleness in the past. There isn't enough left on the roll to bother trying to dry it out (I can see the hub through the filament).
 

danmitch1

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Dec 15, 2007
Messages
1,604
Ahh ic gotcha.

I just ordered a roll of TPU, first time, pretty excited! Luckily im reading to use 100% part cooling as for now, all I can do is 0% or 100% lol...
first design will be custom crampons :)
 

sswilson

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Dec 9, 2006
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Moncton NB
Think it might be time to swap out my bowden tube. I ordered a replacement fairly early on, but stuck with "if it ain't broke, don't fix it" so long as the stock stuff seemed to be working well.

I noticed over the last few days that swapping out filament was becoming difficult (specifically removing) and thought that perhaps the existing tubing had shifted thus inducing a restriction. Now I'm seeing a weird issue where it doesn't appear to be extruding properly on one side of the bed so I'm thinking that the tube is restricting movement based on how it's being stressed on that side of the bed.

I've got one mail-away print that I'd really like to get done before I potentially break the printer though... :)

edit: Nope... that was bizarre. Changed print surface and everything seems fine now. Not sure if it was the surface or I nudged whatever was causing the issue back to normal.
 
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