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- เผยแพร่เมื่อ 29 ก.ย. 2024
- The more I use a microwave kiln the more I learn what can be done with them. They are inexpensive on Amazon and every glass studio should have a couple on hand. I will continue to make videos on this subject as I learn. Suggestions are always welcome. If you found something usful in this video, pleas hit the "Like" button and subscribe to my channel. Thanks for watching, Capt Mike.
When doing pendants in my small MWK I start out at 3 minutes @ 70% power and 3 minutes at full power. Depending on how it looks I’ll go minute by minute. Also the age of the kiln affects the results. The older the kiln, the longer it takes to heat up. When doing large pieces in the large MWK to keep the glass from cracking I start out at low power about 30% for 5 minutes, 40% for 5 minutes twice, 50% for five minutes and then adjust from there. This is what works for me, but like you said it depends on the microwave and the kiln. Love your videos!
Good advise! Thanks for watching.
Thank you for your helpful information. Being involved with layered kiln fired glass over time, all we used is wood glue perfect it burns away, no traces left. Remember it dries clear.
You are absolutely right and thanks for the comment!
Fantastic👍
Thanks for watching!
Opaque glass is softer than transparent glass. Different coe's don't play well together but can sometimes surprise you.
Your vids are so helpful thanks
Thank you for watching!
these videos have been very helpful, thank you!
Thx wonderful
This man's kitchen inspires me. I'm so sick of keeping up appearances. Think I'll get rid of my couch, recliner, and turn my mobile home into a craft studio.
My sink and counter could use a "little" cleaning. Funny how stuff accumulates. Thanks for watching!
Did you try decreasing the % of power with the molds? Perhaps 5 minutes at 50%, 5 minutes at 60%, etc. I actually use this method with my pendants as well. I also offset my kiln to the outside edge of my rotating plate. This helps eliminate too much heat to the top of my microwave and also helps if you have hotspots inside the kiln. Just an idea for more experiments for you; these have proved to work for me. Continued happy fusing
I enjoy your videos, but could you please take a moment or two to show a close up view the glass as you progress through your trials?
Thanks for the suggestion. Since I do all my own filming, I sometimes get carried away and forget about the closeups. I'll see if I can do better.
UTube has a zoom setting to use while viewing.
Have you ever tried refractory cement for your molds?
No, but that's a good idea. If you try it before I do, let me know how it works.
Interesting tips and tests. Thanks for sharing :) I don't drink alcohol but have friends that do and most often get beer bottles in brown, green, or blue. I never cut them though. I just put them inside the cut off leg of an old pair of jeans and give it a good smash or two with a hammer. I love those breaky noises. :D (from Drop Dead Fred) They can make some really lovely pendants of various sizes depending on the size of the piece I use. As for your brushes with the UV resin... try putting them in rubbing alcohol for a bit then cleaning them in the alcohol. I don't know if it works with UV resin as I have never used it but it works with epoxy resins that I have used extensively. - Heidi
Thanks for the tip BlackCat2. Glad to see you are recycling those bottles!
Can I cut my bottles in rings and melt for chimes
I don't see why not. If the rings will fit in the kiln they should melt just fine.
What setting on microwave for raku
I set my microwave on high and fire until the pottery is glowing red hot, usually about 15 minutes or so.
Can earthenware clay fired in microwave kiln?
Any ceramic clay body can be fired in the MWK.
Can silicone molds be used in Microwave kiln?
I don't think so. They are a rubberized type of material and I'm sure they will catch fire. Tanks for the comment.
@@CaptMike Thanks.
No but they're great for Freeze and Fuse. Pop the frozen piece out of the mold and fuse. Love it!
What temperature does your microwave have to be.
glass melts at 1400 to 1600 F, usually. If firing clay you need to get to 1500 to 1800, usually
Can I smash a glass in towel nd use it, instead of buying glasses?
Sure, just amke sure the glass is compatable. Most wine and beer botles will melttogether just fine.
@@CaptMike Oh , so as long as the glass is from the same bottle or glass cup, I can fuse them together, right?
@@vakhbod100 That is right. Most glass from wine, beer and plate glass with be compatable.....sometimes stuff does happen.
Have you tried to nap any of you glass experiments? Super vid sir, thanks.
Only those I specifically made to knap., but if it was glass, fully fused I would think there would be no problem.
Have you tried the freeze and fuse method yet in silicone molds? Susan McGarry has a good video on it.
I have watched her video and it is a good one, but I have yet to try that method. Thanks for reminding me I have something I need to do!
I have silicone resin molds I use for this and it's so quick and easy. Love it!
Can you tell me why my glass keeps breaking in the microwave kiln. Im using a large kiln and heating it Initially on 8:00 min. Am i heating it too long at first? Also my glue isn’t sticking to my pieces when fired. Thank you for your response
How thick is the glass you are fusing? Sometimes when I try to make a pendant out of a chunk of glass I get breakage. Try firing at 3 minute intervals, checking in between to see how it is going. If you are refering to glue on the finished item, if cleaned properly it should stick. I use E6000
Good morning Capt Mike I want to melt old marbles and glass I find is there a 3x2 rectangle shaped mold I can get to make slabs for knapping arrowheads ?
A quick check on Amazon did not turn up anything, but if you can get your hands on some ceramic clay you can easily make you one. That's what I did. Maybe I should do a video on how toi do that.
Is there a way I can just soften the edges on chopped canes without doing a full fuse? I am a nubbie ……..
Yo would have to experiment by checking at 3 minute intervals. I am not sure what the results would be. Just have to experiment.
Can I turn my microwave on its side to create more space
If you are talking about the appliance I woul not think so, but I have never done that.
Thank you so much for a great tutorial. I haven’t made anything yet, but just bought all the things I need to start. You have given me the confidence to just ‘have a go’.
Thanks for watching and good luck with your projects!
I wonder....I've used graphite molds when lampworking glass. I wonder if they would work in a kiln. I also use brass molds, but I wonder if they might get too hot
Do you have any vids fusing glass from wine bottles
I can't recall offhand, but I do have vids about slumping bottles and have also made frit out of bottle glass. You just have to experiment some as even bottle/window glass comes in different COE's.
Hi. Flow glass will always smashed the mold because of hight pressure. You should drill some halls into your ceramic molds. The glass will flow throught a little bit but molds will safe and you could use them again. This metod works in the regular glass kiln. Maybe it will work in the microwave kiln.
Can't hurt. I will give that a try. Thanks for watching.
Can I put a dried flower into UV glass glue between two pieces of transparent glass - will it burn out? 👀 Is it gonna be hazardous? 😳
Do you have a video (or can you make one) showing how to make fused glass earrings with a hole for the earring wire without drilling?
The only way I know to do that is to use a mold with the hole built in. I have a couple of those, but the earings are rather large. I'll check tomorrow and see if I can do it in the microwave kiln, if so I'll do a video.
@@CaptMike Thank you!
I have been binge watching your videos. What you do is wonderful to watch!
For the little ceramics mold did you try to fire them alone without frits first and then applying the frits ? It might be the temperature difference between glass and the ceramic. One of eachother gets hotter too quickly and creates a shock ... Might be ...
Charlene, that is an excellent idea. I don't think I have tried that, but I will!
I'm also experimenting with small ceramics I've found at thrift stores.
Have you ever used mica for glass fusing
I have trie dit with mixed results. Make sure it is real mica and not some plastic that will burn off. I think the micas have a big learning curve.
I like your vids very informative
Thank you for watching!
Have you tried a commercial devitrification spray? Or there's a recipe to make your own:
INGREDIENTS:
1 quart (4 cups) distilled water
1/4 cup 20 “Mule Team Borax” (available at most grocery stores in the laundry detergent section)
2 Tablespoons Bullseye Glastac or other clean burning glass glue
YOU WILL ALSO NEED:
2 clean, water-tight, 1 quart (or larger) containers
DIRECTIONS:
Mix all ingredients very well in one of the clean containers. For best results, close container and shake vigorously.
Allow mixture to sit, undisturbed, overnight.
You should see some of the borax settled in the bottom of the container. Carefully (so as not to disturb the particles on the bottom) pour the liquid (decant) into the second container. Do not allow any of the settled borax into the second container. This leaves a small amount of liquid with the borax sediment in the first container. That’s okay.
Discard the contents of the first container.
The solution in the second container is ready for use (see below).
IMPORTANT:
Over time additional borax will settle on to the bottom. When this happens, repeat the decanting process above.
NEVER RE-MIX THE SOLUTION! Doing so will result in undissolved borax particles on your glass - which will almost certainly cause spots.
Simply brush or spray the solution evenly onto your glass.mouth atomizerThe best way to do this is with an airbrush. A mouth atomizer (see photo) is an inexpensive alternative and available at most art stores. Perfume atomizers can also be used.
The best way to do this is with a haiki brush (the wide, soft brush most people use to kiln-wash their shelves). If you use a haiki brush do not use the same one you use for kiln-wash - dedicate one for the devitrification solution.
Let the spray dry before firing. A hair dryer can be used to speed this up.
Thanks for the tip and I willl certianly give this a try. The commercial stuff (I use it all the time) is expensive.
Hello Mike, did you try carving into vermiculite plaster ? Once the design finished spray with boron nitride and apply fine frits of your choice. Might be a possibility to consider. What do you think ?
Again you present a great idea. I have not tried making a mold from vericulite and plaster.
I will have soon a video on reels / tik tok to share. You are welcome to watch it and maybe subscribe to my channel or Instagram account 😉 pleasure
I made a post on my Instagram : @charlenehomedecor . I was able to carve into vermiculite. Works wonderfully 🤠
@@charlenehomedecor give me a little more info on how you are doing this and I will try it.
Thanks for sharing your findings! How long have you found your kilns to last? I’ve heard that the graphite breaks down after a number of firings. Have you found that in your experience?
I have not had any to break down and I have had them for about 3 years. They do vary somewhat in their heating times and I think that is from age maybe.
@@CaptMike Thank you!
@@Connor-tv5gu Thanks for watching!
How long last your microwave
I's difficult to tell, as I usually sorce used ones. I would think you would get normal use from ome depending on how often you used it., 3 or 4 years would be a good guess.
For the resin just pour a bit on and spread it with a toothpick to the edges. It tends to spread on its own. You can buy a a cheap uv flashlight to get them curing or a cheap nail lamp on Amazon. Hope this helps. Love your channel. You are amazing.
That is an excellent idea for U resins. Thanks so much for commenting and watching my video!
Yay a new microwave kiln video!
These are my favourite, because it's the only type of kiln I can actually have at home 😊 And I just love making ceramic things.
Thank you for the video, Captain ❤️
Glad yu liked it. Stayed tuned as I plan to do a new video on how to make a larger microwave kiln.
Have you tried Kaiser Lee Board in a Microwave Kiln? They specifically mention microwave kilns in their literature.
No, but I will look into that. Thanks.
Thanks so much for this video. Very informative. I'm going to have to look up a few things (what id "float", COE90? 96?, what kind of glass are wine bottles?) I will be looking for your other videos. Thanks again
Float glass is a COE all its own and can vary from batch to batch. I think the COE is in the 80"s Same with wine and beer bottles.
I’m wanting to play with metal clay and get me a Microwave kill thing ! What do you think ??? I make wire wrapping gemstone jewelry and love Soldering , etching and enameling !!! Today ...
Tish, I'm not familiar with metallac clay. Just be sure you know what the temps are to cure it.
Oops after comment you discussed the topic
Thank you for the videos Captain Mike! I have been doing stained glass for years, but just got my first microwave kiln and am having a lot of fun with it. I'm still a little confused about COE. Can I use scrap glass from prior glass projects if I don't know what COE rating they have? If a single piece of glass has multiple colors, can I use multiple pieces from that one sheet of glass, without having to worry about the COE? Is the clear 'float glass' that you use from a glass shop, or just a fancy name for cheap glass from the hardware store? Can you embed jewelry wire in the microwave, or is it better to glue afterwards?
The great thing about a microwave kiln is that you can experiment with small pieces. I find that glass intended for stained glass work (not all of it) does not fuse well. At least that I get from Hobby Lobby does not fuse well. If you get fusabe glass that is multiple colores or "streatey" it wil fuse well witht he same COE. Yes, itf it come from the same sheet of glass it should fuse just fine. Float glass is regular plate glass, regardless where it comes from. Float, like all glass fuses better form the same batch, but again, experiment. I have embeded high temp wire in bottles with success. I'm sure it will work with all glass.
Thanks for encouraging me to experiment with my kiln. I was so nervous to do the "wrong" thing, but I'm over that now and have been having some great successes (and a few failures) and a lot of fun!
@@ACMaren I'm so glad you are having success and fun! That is why I do these videos; to help others.
Hi Captain Mike, love your videos & have learned so much from them :) Thank you! Could I ask your advice please? Can I repair a smoke damaged kiln? The coating is cracked too :( thanks in advance
If the white part (insulating material/body) is only smoked it will not effect the working of the klln. As long as the kiln is not comming apart and the black part is intact all is well. The black part is what makes the kiln work.
Can you eat/drink what you make when you put it in the microwave kiln
If the glaze is food safe it should not be a problem.
I understand a microwave heats uneven and you should set your burns in different places to find that sweet spot.
If your microwave has a turn table that should help the hot spot issue. I have not encountered that poblem. Thanks for the comment.
I don’t have any experience, but I had one idea that came to mind regarding your glass molds cracking. Would it work to heat the glass up for the most part independent of the mold, then for the final couple minutes, scoop up the molten glass and set it in the ceramic mold to finish firing? Just an idea
That would be difficult to do, however I have had a couple of suggestions suggesting a start at a lower microwave setting and slowly work up.
Is there a reason these kilns are always round? I would like to see a square kiln with more space, and more graphite. Maybe then bigger sheets could be layered. Also have you tried preheating the glass with a propane torch? I have seen people use that trick to melt a hole in a bottle. th-cam.com/video/cskB5c0mJ58/w-d-xo.html Could perlite be used as an insulator to help the glass cool more slowly after it comes out of the microwave? Or could you even put it in an oven to help it cool down more slowly? Sorry for all of the questions. I like to experiment too. While typing this you mentioned that big glass pieces won't work. Why is that? What happens or doesn't happen?
I havenever seen a square kiln although I have thought about making one. Haven't tried the preheating of the glass yet. I'll have to look into that. I think perolite would work fine you would just need a way to bind it. I think they make a cement for that. The big pieces of glass blow up because they are heated too fast. I tried heating one at two minute intervals yesterday and at 6 minutes it blew up.
@@CaptMike have you tried using different power levels on the microwave? What if you made insertable rings of graphite, and added them one at a time at certain time intervals? Would different amounts of graphite give you different temperatures?
In reference to the perlite, I wasn't suggesting to use it in the making of the kiln. Although I have seen foundries made with it. Instead I was suggesting that the kiln be buried in perlite to help it cool more slowly. I remember seeing someone do that before.
@@jerrywhidby. Haven't tried different power levels. I just zap mine on high. Except for the large pieces of glass that works fine. I will have to try a lower level on the large glass....good thought. I just saw where the guy had three levels in a large/tall kiln he built; good video.
My shop is cool when I start so I preheat the glass in the mwk 5' on 4 in my 1100 mwk. It works well. I then go on to fusing.
I am a rookie potter, and just found your videos today. Watched a few and subscribed. Thanks and keep them coming. Really enjoyed.
Thanks for watching!
Can i use my sea glass in a microwave..? As in a minuteI have a bunch i have collected from the beach
Yes, individually they should melt, flatten out some and round off. Makes nice pendants.
Thank you for sharing all you do !!!
What do I prime with? Regular kiln primer?
On the bottom part of the kiln the is a raised inner part. Put about 3 coats on that and then use shelf paper if you have it. Thanks for watching and the comment.
Are there only specific types of microwaves that can be used for the microwave kiln?
Kim, any microwave will work. I have used 600 watt up tp 1500 watt.
Thank ur so generous
Thanks for watching
Love your videos! you are doing much of the work for us with your experiments. Very informative, thank you
Yes them little circles I’m looking for a few ! Do you have a store Captain Mike ?
Great video, thank you so much for sharing!
Thanks for watching!
Jaqueline Noleto from Brasil work with molds to microwavw kiln. She has instagram. You kan finde she there...! thank you so much for these video!!
Thank you for commenting and watching my video!
When glass has metallic on one side should that go up or down when you're fusing
I always put it down.
Can I ask, with the ceramic molds, have you tried putting glass on the shelf paper stacked up and putting the mold on top? So as it melts the mold comes down on top? I'm still very much a beginner so have no idea if what I'm saying is stupid but thought it might be an alternative way of doing it?
I have not tried that but my thinking is the glass would just flow under the mold and lose detail. Anyone tried that?
I have not tried that but my thinking is the glass would just flow under the mold and lose detail. Anyone tried that?
Yes it probably would, I didn't think of it that way
How do you know the difference between each glass type?
Actually it is difficult to tell until you have fooled around with glass for a while. I still get it mixed up so I try real hard to stay away from anything I am not completely sure of. I keep a container that I throw glass I am unsure of into. I use this glass for stained glass work.
Thank you! Glass kiln the next plan...💛
Good luck and thanks for watching!
I love your videos. Keep up the great job!!!
Thank you for watching!
Great vid mike!
Thanks for watching
Thanks for watching
I'm such a newbie that I don't even have my microwave kiln yet. I've wanted one for years and I'm getting one as a Christmas gift 😃
I really appreciate your videos and will be rewatching once I have the kiln. Thank you!
Thanks for watching and if I can be of help please let me know.