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by Tony Smith
Wed Jan 08, 2020 11:05 pm
Forum: Techniques and Tools
Topic: Adhesive Question
Replies: 7
Views: 2076

Re: Adhesive Question

Dick is correct.
Full strength cure is 24 hrs at room temp. Max chemical resistance takes a full week.

Tony
by Tony Smith
Wed Aug 21, 2019 5:21 am
Forum: Techniques and Tools
Topic: air supply for blasting hood?
Replies: 8
Views: 3252

Re: air supply for blasting hood?

Hi Bonnie. There are many solutions - Affordable is the question. Probably the best solution is to get a larger cabinet like a glass passer that attempts to keep the dust inside the cabinet. Then you can avoid using the hood. An alternative is to get a hood with a dedicated air source made for breat...
by Tony Smith
Sat Jun 29, 2019 3:28 pm
Forum: Techniques and Tools
Topic: Sandblaster water separator.
Replies: 12
Views: 3775

Re: Sandblaster water separator.

Excellent. I'm glad it's working for you. I would suggest you make a sign reminding you to drain the compressor and each of separators before sandblasting and stick it to the wall next to the sandblaster. It'll be a constant reminder that the only way to beat moisture in SF is to drain as much water...
by Tony Smith
Wed Jun 26, 2019 8:46 am
Forum: Techniques and Tools
Topic: Sandblaster water separator.
Replies: 12
Views: 3775

Re: Sandblaster water separator.

I'd like to circle back to Kevin's comment about the copper tubing. The reason this is effective is that for a smaller compressor that runs a lot while sandblasting, the compressed air coming out of the compressor is very warm and can retain a lot of moisture in the form of vapor. This moisture cann...
by Tony Smith
Sun Jun 23, 2019 12:55 pm
Forum: Techniques and Tools
Topic: Sandblaster water separator.
Replies: 12
Views: 3775

Re: Sandblaster water separator.

Some things you might try: Make sure your compressor is drained of water every day. In a humid environment, the process of compressing air heats the air and puts all the humidity into the tank. As the air cools, the moisture condenses out and settles to the bottom of the tank where it can be reintro...
by Tony Smith
Sat Jun 15, 2019 6:27 am
Forum: Techniques and Tools
Topic: Drop Ring from thick slab
Replies: 11
Views: 4128

Re: Drop Ring from thick slab

Thanks for trying.

This is the way we all learn.

Tony
by Tony Smith
Sat Dec 15, 2018 9:35 am
Forum: Techniques and Tools
Topic: Removing sticker 'ghost marks'
Replies: 11
Views: 5944

Re: Removing sticker 'ghost marks'

Sprinkle some Bon Ami cleanser (it's finely ground limestone) on the surface, add a little water and rub. Like Cerium Oxide, it will polish the surface removing any residue.

Tony
by Tony Smith
Mon Dec 10, 2018 6:20 am
Forum: Kiln Casting
Topic: 208V-3 Phase Power but have 240V-1 Phase Kilns
Replies: 2
Views: 4086

Re: 208V-3 Phase Power but have 240V-1 Phase Kilns

I would follow Dick's recommendations AND replace the kiln elements to operate at the lower voltage. That will ensure you can get to temperature in a reasonable amount of time.

Tony
by Tony Smith
Thu Oct 04, 2018 7:30 am
Forum: Techniques and Tools
Topic: Wetbelt sander belts breaking
Replies: 10
Views: 5893

Re: Wetbelt sander belts breaking

Are these full-size belts or Covington size? I've never heard of belts coming apart, but I suppose it's possible as the glue hardens over time.

Tony
by Tony Smith
Sun Jul 01, 2018 10:39 am
Forum: Newcomer Forum
Topic: Sand mold for IN the kiln
Replies: 6
Views: 6270

Re: Sand mold for IN the kiln

I've used #1 plaster. I'm not sure how that's different from plaster of Paris.

Tony
by Tony Smith
Sat Jun 16, 2018 7:18 am
Forum: Techniques and Tools
Topic: glass is breaking
Replies: 12
Views: 6343

Re: glass is breaking

According to the MSDS, it's a styrene-butadiene copolymer. The E6000 uses tetrachlorethylene as its volatile solvent. That means it is not a silicone and is more like rubber cement in its composition.

Tony
by Tony Smith
Sat Jun 09, 2018 7:00 am
Forum: Techniques and Tools
Topic: glass is breaking
Replies: 12
Views: 6343

Re: glass is breaking

What are you using to glue the glass to the metal? Theres a large difference in thermal expansion between most metals and glass so if you're using an epoxy, you need to be careful how, and more importantly, where, you glue the glass. A silicone is more compliant and therefore more forgiving about ho...
by Tony Smith
Sun Jun 03, 2018 8:14 pm
Forum: Techniques and Tools
Topic: Stuck stringer bowl
Replies: 2
Views: 2112

Re: Stuck stringer bowl

Put it back in the kiln upside down and use a reasonable ramp (200 deg/hr or so) up to 600 degrees and the glass will separate from the mold. If you have some ceramic fiber you could use that under the rim in 3 or more places to cushion the glass when it falls.

Tony
by Tony Smith
Thu May 17, 2018 8:21 pm
Forum: Techniques and Tools
Topic: Slumping Tempered Glass
Replies: 5
Views: 3605

Re: Slumping Tempered Glass

1175 with a good anneal on the way down will remove the tempering. That said, you can sandblast tempered glass without it blowing up. A light etch will work just fine.

Tony
by Tony Smith
Mon May 07, 2018 5:39 am
Forum: Techniques and Tools
Topic: HOMEMADE IRIDIZING?
Replies: 12
Views: 6420

Re: HOMEMADE IRIDIZING?

I wasn't able to open the link that you posted, but you'll find directions in the archives here. Also, micas don't produce an iridized surface, which is a tin oxide, but a thin layer of the mica fuses to the surface of the glass. Essentially, you'll mix mica in a medium like Klyr-fire with some alco...
by Tony Smith
Thu Apr 05, 2018 8:30 pm
Forum: Techniques and Tools
Topic: Skutt km1227 1phase 240v
Replies: 4
Views: 3182

Re: Skutt km1227 1phase 240v

It seems bizarre that all 4 elements would burn out at the same time... in fact, I would say the likelihood is near zero. How did you determine that the elements were all burned out?

Thanks

Tony
by Tony Smith
Sun Mar 18, 2018 9:11 am
Forum: Techniques and Tools
Topic: Kiln Relays
Replies: 51
Views: 33589

Re: Kiln Relays

The idea behind moving the entire controller is to get the power handling components away from the kiln heat and retain the enclosure. If you didn't do that, you would need to have a separate enclosure for the SSRs.

Tony
by Tony Smith
Fri Mar 16, 2018 5:56 am
Forum: Techniques and Tools
Topic: Do kilns REALLY burn "to the ground"
Replies: 8
Views: 4097

Re: Do kilns REALLY burn "to the ground"

by Tony Smith
Wed Feb 21, 2018 6:24 am
Forum: Techniques and Tools
Topic: Kiln Temp stops climbing at 1250ish degrees
Replies: 4
Views: 3113

Re: Kiln Temp stops climbing at 1250ish degrees

If the kiln has top and side elements, and one is malfunctioning (as Brad indicated because of a broken element or failed relay), the kiln will not get to temperature. So heat up the kiln and take a peek inside. Are all the elements glowing?

Tony
by Tony Smith
Mon Feb 19, 2018 10:13 am
Forum: Techniques and Tools
Topic: Kiln Temp stops climbing at 1250ish degrees
Replies: 4
Views: 3113

Re: Kiln Temp stops climbing at 1250ish degrees

Assuming your glass hasn't slumped or fused which might indicate a problem with the thermocouple or a misprogramming of the F/C units, I've seen this problem when the peephole has been left unplugged or when the lid is not completely closed allowing room air into the kiln and hot air to escape.

Tony

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Suite 700
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