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9th December 2013, 11:19 PM #1
Lessons in Pictures from Sturdee place
I took these pictures because as a beginner in casting, it is always the "little" things that I need to remember. I find that a picture reminds me HOW to set up a Pressure pot lid, or that I need to buy gloves, and what was the name of that colouring pigment? and what casting Resin do I buy, how do I use the moulds? etc. So if you have a question when you see a photo, just ask and Neil will answer it!!!. Amos42 a cast pen (Large).jpg29 Pigments (Large).jpg28 Pearl EX (Large).jpg27 More Colouring (Large).jpg26 Colour Agent (Large).jpg25 One of the cast Blanks 2 (Large).jpg24 One of the Cast Blanks (Large).jpg23a Mix Resin and Colour (Large).jpg23 Warming up the Resin (Large).jpg22 Getting Ready to Pour (Large).jpg21 Lid of Pot 3 (Large).jpg30 The Resin (Large).jpg31 MEK (Large).jpg41 Small Compressor (Large).jpg40 Nuts to Cast (Large).jpg39 Normally get turfed (Large).jpg38 Mica (Large).jpg37 Digital Scales (Large).jpg36 Cactus Juice demo 4 (Large).jpg35 Cactus Juice demo 3 (Large).jpg34 Cactus Juice demo 2 (Large).jpg33 Cactus Juice demo 1 (Large).jpg32 Use Gloves (Large).jpg20 Lid of Pot 2 (Large).jpg19 Lid of Pot 1 (Large).jpg7b Nuts to Mould 2 (Large).jpg7a Nuts to Mould (Large).jpg7 Another Mould (Large).jpg6 Casting Nuts into pen Blanks (Large).jpg5a Vertical Mould (Large).jpg5 PVC Piping Moulds (Large).jpg4 Plug Mould (Large).jpg3a Hot Melt (Large).jpg3 pepper Mill Mould (Large).jpg2 Mould 1 (Large).jpg7c Coulouring the nuts first (Large).jpg8 Fit Scraps 1 (Large).jpg18 Pressur Pot Lid (Large).jpg17 Pot and Racks (Large).jpg16 Pouring Resin 3 (Large).jpg15 Pouring Resin 2 (Large).jpg14 Pouring Resin 1 (Large).jpg13 Another Pot Rack (Large).jpg12 Pot Rack (Large).jpg11 Fit Scraps 4 (Large).jpg10 Fit Scraps 3 (Large).jpg9 Fit Scraps 2 (Large).jpg1 Bread Board Mould (Large).jpg
Good, better, best, never let it rest;
Til your good is better, and your
better, best.
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9th December 2013 11:19 PM # ADSGoogle Adsense Advertisement
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9th December 2013, 11:27 PM #2
Great reminder in pictures. think you got all of it there.
The best part I got from it was I was told by FGI to use 3 to 5% of MEKP (by weight).
but Mark and Neil said to only use 2% for block casting.
Means my 2 piece Sierra mould that uses 40 grams of resin now gets .8 gms of MEKP and not 2 gms.
And everyone who is new to casting use glasses and gloves with MEKP.
if you get it on your hands and rub your eyes, your BLIND.
Flick it from the end of a pipette or have a tiny bit left and drop the pipette and have it flick towards you and get a bit in your eye , same result.
Peter
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10th December 2013, 10:04 AM #3
Great shots Amos
The amount of MEKP I use varies considerably, due to me being lazy mainly, except when doing large volume pours that Fly refers to above. The more MEKP you use the more brittle the cast and the more heat that is generated. In large pours, such as pepper grinders where I can use up to 2 litres in 1 pour , and the heat build up can easily crack the cast. You can have large volume pours without issues if it is spread out, what I am talking about is large volumes in a concentrated lump. In the demo day I used 1 litre cast with the Cypress pods and actually used only 1% and still got some minor cracking. With a 2 litre pepper grinder I will use as low as 0.5%, you just want the cast to start setting, the heat will do the rest. Once I used too much and I had to put the entire mold in the freezer as I was concerned the plastic mold was going to melt . You should use multiple smaller pours, which is fine if casting clear resin, but when using colours it is hard to get them exactly the same when using pearlex etc. If it cracks you can use more resin and cast more, but sometimes the cracks are internal and you wont find them until you turn
Absolutely, this is dangerous stuff! If you get it in your eyes, there is no cure and no going back, so please be very very careful.Neil____________________________________________Every day presents an opportunity to learn something new
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10th December 2013, 10:28 AM #4043TURNING
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I have to agree totally Gloves and Glasses EVERY TIME No excuses !!!
remember the hotter the day the less MEKP, the greater the volume the less MEKP. Higher ratios of MEKP cause greater shrinkage and MORE brittle blanks - so when the blanks are super chippy and explode, or the resin is not attached to the pod or timber think back to the amount of MEKP used and adjust
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10th December 2013, 01:10 PM #5
Great set of photos Amos. Amazing how many things came flooding back when I saw them.
I noticed one of the jars of pigment says it was packed by Martini Marine in Geelong. Not sure who it belongs to, but can it still be brought from them (my home town)?
One thing I did not clarify on the day as we did not have the time to get that far, is when you turn the blank which has been cast around wood or seed pods, do you finish it off with coats of CA to cover the exposed wood as you would for a normal wooden blank?Dallas
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10th December 2013, 03:30 PM #6
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10th December 2013, 05:46 PM #7
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10th December 2013, 06:11 PM #8
I had just enough time to rough turn my cypress seed pod small pepper grinder blank today - 65 dia 180mm long with a quick coat of CA to bring out the colours and seal it ready for tomorrow or the next day maybe (my mother has more doctor's appointments). Certainly looking good so far
cypress sml pepper grinder blank.jpgsml grinder1.jpg
Yes a thick coat of CA though, to ensure as the wood/pods etc move in the future, there is enough CA to hold them together. Another tip, sand your blanks approximately round before you start, it will help avoid chipout.Neil____________________________________________Every day presents an opportunity to learn something new
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10th December 2013, 08:19 PM #9
Thanks Amos, Neil and Mark
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10th December 2013, 09:17 PM #10
Last edited by Treecycle; 10th December 2013 at 09:26 PM. Reason: More detail
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10th December 2013, 10:27 PM #11
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14th December 2013, 02:17 PM #12
Final pepper grinder shown here https://www.woodworkforums.com/f8/sma...5/#post1726674
Neil____________________________________________Every day presents an opportunity to learn something new
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18th December 2013, 10:00 PM #13
Well I'm a happy little Vegemite. Picked up my new pressure pot today. Well not new, but new to me. Picked it up off Gumtree for $75 and it has never been used.
Ordered some resin and pigments off Mark tonight, so I will be ready to have some fun when they arrive. I will make up some basic moulds to start with and progress to better ones once I understand what I am doing.
Pressure-pot.jpgDallas
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18th December 2013, 10:03 PM #14
Good score Dallas,
The rest of us wait for supercheap to have them on special for 99.
We'll be looking forward to results.
Peter
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18th December 2013, 10:18 PM #15
I was also looking at these before I came across my bargain. They have stores in Preston and Dandenong so you can pick up instead of paying shipping.
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