FYI... you maybe able to pick-up some bargains from Gearbest this week till early April...
Repraps and DIY 3D Printing!, Open source hardware~
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 Mar 27 2018, 12:20 PM
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#1
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Senior Member
5,987 posts Joined: Jan 2003 From: North Borneo & South Nihon/Nippon  
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Mar 29 2018, 05:29 AM
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#2
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Senior Member
5,987 posts Joined: Jan 2003 From: North Borneo & South Nihon/Nippon
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QUOTE(I<3LYN @ Mar 29 2018, 04:23 AM) nope, that was Dimethyl fumarate, not silica gel, silica gel is chemically inert. Silica gel infused with Colbalt chloride (blue/pink)... has been banned |
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Mar 29 2018, 08:34 AM
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#3
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Senior Member
5,987 posts Joined: Jan 2003 From: North Borneo & South Nihon/Nippon
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QUOTE(ozak @ Mar 29 2018, 08:24 AM) Sorry. I don't no much about chemical. The silica gel blue (when dry), pink (when wet) is non-food safe... and no longer used with food stuff...I only been inform about the food grade and non food grade silica gel. And how to identiti it. Please tell me more about this Dimethyl fumarate. blue/pink colour indicator through infused colbalt chloride. I'm not aware of any Dimethyl fumarate application used for absorption of moisture... and I'm a scientist... This post has been edited by BeastX: Mar 29 2018, 08:40 AM |
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Mar 29 2018, 09:29 AM
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#4
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Senior Member
5,987 posts Joined: Jan 2003 From: North Borneo & South Nihon/Nippon
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QUOTE(aeiou228 @ Mar 29 2018, 09:09 AM) I'm using it for storing non food item in plastic storage boxes. I recharge it in microwave oven and air flyer and clean the oven thoroughly after used. What health hazard I might be risking ? Thanks. The blue ones (of even the white ones)... with multiple quick heating may crack the beads to powder/dust form... and if you breath in these dust it may cause "lung disease silicosis"....Also Cobalt (II) chloride that's infused (blue/pink indicator) is a possible carcinogen (causes cancer) Here's the MSDS: http://datasheets.scbt.com/sc-252623.pdf This post has been edited by BeastX: Mar 29 2018, 09:30 AM |
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Mar 29 2018, 11:59 AM
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#5
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Senior Member
5,987 posts Joined: Jan 2003 From: North Borneo & South Nihon/Nippon
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QUOTE(aeiou228 @ Mar 29 2018, 09:48 AM) Wow !. Didn't know that. Thanks. Thirsty Hippo (specifically) utilised Calcium Chloride... mildly hazardous.... I use disposable moisture absorbers too (similar to that of thirsty hippo). Are they health hazard too? MSDS: http://www.sciencelab.com/msds.php?msdsId=9923251 |
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May 28 2018, 05:24 PM
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#6
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Senior Member
5,987 posts Joined: Jan 2003 From: North Borneo & South Nihon/Nippon
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QUOTE(augchow @ Apr 17 2018, 07:54 PM) Hi guys, may I ask any recommendation for a beginner to get a 3D printer budget below 1k? or anyone to recommend to buy from, or a model name would be good, I'll go search for more info... thanks!! Names:Creality/Tevo/Anycubic/TronxyQUOTE(I<3LYN @ May 28 2018, 04:44 PM) how is your tinkering skills? below 1k actually, not much options but DIY KITs from taobao , if you are not good at tinkering, i highly suggest that you double up your budget and get pre-assembled machines. Many relatively advance ones...mostly (minimal requirement) assembled 3d printers at around RM1.3k to 1.5k ... from Gearbest |
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Jun 2 2018, 05:59 PM
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#7
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Senior Member
5,987 posts Joined: Jan 2003 From: North Borneo & South Nihon/Nippon
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QUOTE(ozak @ Jun 2 2018, 03:39 PM) No more wood working ah ?  Better check pros and cons. Many such printer cut cost and simplify till not stable and study enough. QUOTE(yushin @ Jun 2 2018, 04:28 PM) Wood working still ongoing, plastic can't beat wood when making bigger things. some small parts too hard to do with wood so a 3d printer would help a lot. I've the Tevo tornado...comes with two pieces PEI like surfaces materials for the heated bed...these surfaces however bubble-up & deform after subjecting it to 125C for a week or 2, which makes adhering the first layer problematic......you may want to purchase a glass surface instead if you intend to use high temp filaments....The main base of the heated bed appears to be fiberglass-like material some 5-6mm thick.... The price is a factor too. Didn't know its so cheap now. The tornado, from youtube reviews seem very good for the price. All metal joins. Also Tevo Tornado utilise a 700W silicone heatpad and is able to hit 130C in around 2 minutes.... powered directly off the AC power through a relay Speaking of which I may pick-up my 5th 3d printer, Creality's Ender 3..... This post has been edited by BeastX: Jun 2 2018, 06:23 PM |
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 Jun 2 2018, 07:04 PM
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#8
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Senior Member
5,987 posts Joined: Jan 2003 From: North Borneo & South Nihon/Nippon
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QUOTE(ozak @ Jun 2 2018, 06:41 PM) I m using cr10s. So far so good. But construction quality is so so. Not that study enough. I plan to modify it. But than the source is close. creality has recently (in April) release the firmware to the community...I haven't try to print that high temp. Max so far 60°c for the bed. The bed come with glass. But have some defect. I change to Ikea mirror. Max for CR10s bed is 100°c. It using DC heater which is slower to heat up. I m preparing to print ABS. But before that need to do some casing, heater and controller to control the environment temp. |
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Sep 16 2018, 05:13 AM
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#9
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Senior Member
5,987 posts Joined: Jan 2003 From: North Borneo & South Nihon/Nippon
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QUOTE(JimHao @ Sep 16 2018, 01:16 AM) Hey, guys =D Good prices on both Lazada and shopee.... Both from local and foreign/overseas (China/Hong Kong) shops...I am new to 3D printing, just ordered my new Creality Ender 3, still waiting for it to be delivered. Wanted to ask where do u guys normally get ur filament? taobao or local store? any recommendation or link? I am looking for PLA and ABS filament with acceptable quality and price. Hope you guys can share where do u guys normally get you filament from. Thanks in advance. |
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Mar 26 2020, 07:51 AM
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#10
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Senior Member
5,987 posts Joined: Jan 2003 From: North Borneo & South Nihon/Nippon
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QUOTE(popice2u @ Mar 26 2020, 06:39 AM) anyone can recommend model/brand for entry level 3D printer? Creality Ender 3.. |
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