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Author Topic: Vacutherm iDry input  (Read 25141 times)

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Offline Busysawyer

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Re: Vacutherm iDry input
« Reply #200 on: December 18, 2018, 09:04:10 PM »
Glenn, what thickness is the red oak you are running? 
Even a blind squirrel finds a nut every once in awhile

Offline Glenn1

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Re: Vacutherm iDry input
« Reply #201 on: December 19, 2018, 07:47:21 PM »
Glenn, what thickness is the red oak you are running?
4/4
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Offline Busysawyer

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Re: Vacutherm iDry input
« Reply #202 on: December 20, 2018, 06:49:48 PM »
Glenn, curious as to how long that needs to run for.
Pulled a load of cherry slabs out today and pushed another nice size load of walnut slabs in. 

 

 
Even a blind squirrel finds a nut every once in awhile

Offline nativewolf

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Re: Vacutherm iDry input
« Reply #203 on: December 20, 2018, 07:40:01 PM »
Glenn, curious as to how long that needs to run for.
Pulled a load of cherry slabs out today and pushed another nice size load of walnut slabs in.  
(Image hidden from quote, click to view.)
 
(Image hidden from quote, click to view.)

@Glenn1 ditto on the oak timing question.
@Busysawyer that is a nice looking whack of slabs.  Appreciate the updates.  
Liking Walnut

Offline Glenn1

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Re: Vacutherm iDry input
« Reply #204 on: December 20, 2018, 08:07:06 PM »
The red oak is currently at 55%.  If it has a maximum moisture loss of 3% per day, it will be approximately 16 days before it is dry.  In my opinion, it's taking too much electricity to dry, so I'll air dry first until it is less than 30%. 
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Offline Stephen1

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Re: Vacutherm iDry input
« Reply #205 on: December 22, 2018, 08:22:09 AM »
Glenn, is 3% the rate that the idry pulls moisture from the wood? 
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Offline Busysawyer

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Re: Vacutherm iDry input
« Reply #206 on: December 28, 2018, 05:05:21 PM »
Glenn, how is that oak going? Surprised it would take so long. 
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Offline Glenn1

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Re: Vacutherm iDry input
« Reply #207 on: December 28, 2018, 07:39:57 PM »
Glenn, is 3% the rate that the idry pulls moisture from the wood?
Glenn, how is that oak going? Surprised it would take so long.
I believe that the IDry will dry the wood faster than 3% a day. I am going by the recommended daily rate of moisture removal for red oak. Anything above 3% and Iíd be concerned with surface checks.
The red oak was in the kiln for one week.  At that time, it was at 55%.  I decided to bench the red oak and let it air dry for a few months.  Instead, I put a load of 4/4 quartersawn sycamore in the kiln 5 days ago.


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Offline Busysawyer

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Re: Vacutherm iDry input
« Reply #208 on: December 28, 2018, 09:29:25 PM »
Glen,  I was under the assumption that those rates were not necessarily the same under vaccum. I know the guy by me with a vaccupress said he has little or no issues drying red oak from green and that kiln is about twice as fast as what we are running. I will give him a call to clarify and make sure I'm not spreading misinformation .
Even a blind squirrel finds a nut every once in awhile

Offline scsmith42

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Re: Vacutherm iDry input
« Reply #209 on: December 29, 2018, 10:24:06 PM »
Glenn, itís my understanding that you can safely dry red oak much faster than 3% per day in a vacuum kiln.

The 3% number applies to conventional and DH kilns, but not vacuum.

Did Jim provide you with a kiln schedule with the iDry?
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Offline Glenn1

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Re: Vacutherm iDry input
« Reply #210 on: December 30, 2018, 09:12:29 AM »
Glenn, itís my understanding that you can safely dry red oak much faster than 3% per day in a vacuum kiln.

The 3% number applies to conventional and DH kilns, but not vacuum.

Did Jim provide you with a kiln schedule with the iDry?

Unfortunately, they do not offer any schedules.  Since the IDry is a new product, thereís hope that one will be offered in the near future.  For now, I have to rely on conventional schedules.
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Re: Vacutherm iDry input
« Reply #211 on: December 30, 2018, 09:24:28 AM »
Not sure what a schedule will do for you. It's not like we have any control over how the kiln operates . As far as I know we cant make adjustments. Idry schedule will look something like this.
Walnut=push start
Cherry=push start
Maple=push start
Etc
Etc
Even a blind squirrel finds a nut every once in awhile

Offline Busysawyer

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Re: Vacutherm iDry input
« Reply #212 on: December 30, 2018, 09:28:35 AM »
Glen,  I'm really surprised 4/4 oak was still at 55% after 1 week. I haven't dried any green oak yet but figured it would be close to the 1in thickness = 1 week in the kiln. I guess it's good I dint sell much oak at all. Walnut, cherry and maple are about all I can seem to move around here
Even a blind squirrel finds a nut every once in awhile

Offline Glenn1

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Re: Vacutherm iDry input
« Reply #213 on: December 30, 2018, 01:18:23 PM »
When I sw Jim at Vacutherm regarding the green red oak, he suggested that I keep a fairly close eye on it.  They do say that drying oak in a vacutherm kiln can be challenging.  I am glad that I dry primarily walnut, cherry, and maple too.  
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Offline Just Right

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Re: Vacutherm iDry input
« Reply #214 on: December 31, 2018, 02:03:59 PM »
BusySawyer,  I noticed the plywood on top of the on stack of slabs.  Are you running the bladder?  How did that load of slabs come out?  Fairly flat?  I just sent my deposit in today to beat the price increase.  Starting to get excited now.  JR
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Offline boonesyard

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Re: Vacutherm iDry input
« Reply #215 on: December 31, 2018, 08:41:20 PM »
BusySawyer,  I noticed the plywood on top of the on stack of slabs.  Are you running the bladder?  How did that load of slabs come out?  Fairly flat?  I just sent my deposit in today to beat the price increase.  Starting to get excited now.  JR
I'm thinking about pulling the trigger on one. I didn't know there was a price increase coming, is it something that's confirmed? I suppose it would be a safe assumption due to the demand and the new year. 
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Re: Vacutherm iDry input
« Reply #216 on: December 31, 2018, 09:06:37 PM »
Just right, no bladder. Plywood is to keep the drips from the ceiling from staining lumber. So far all thicker material is coming out flat for the most part. Some cherry slabs with a lot of sapwood cup a little.  The 4/4 on the top layers has moderate to severe cupping. I have been putting the thick stuff on top of the 4/4 the last couple runs and that has helped a lot.
Boonesyard, the idry is going up I think 9k Jan Jan 1st.  So I would guess too late to get in on the lower pricing.
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Re: Vacutherm iDry input
« Reply #217 on: January 01, 2019, 01:29:21 AM »
Just right, no bladder. Plywood is to keep the drips from the ceiling from staining lumber. So far all thicker material is coming out flat for the most part. Some cherry slabs with a lot of sapwood cup a little.  The 4/4 on the top layers has moderate to severe cupping. I have been putting the thick stuff on top of the 4/4 the last couple runs and that has helped a lot.
Boonesyard, the idry is going up I think 9k Jan Jan 1st.  So I would guess too late to get in on the lower pricing.
Wow, that's a big jump. May put that idea on hold.
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Offline jfric

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Re: Vacutherm iDry input
« Reply #218 on: January 02, 2019, 05:40:24 PM »
Just right, no bladder. Plywood is to keep the drips from the ceiling from staining lumber. So far all thicker material is coming out flat for the most part. Some cherry slabs with a lot of sapwood cup a little.  The 4/4 on the top layers has moderate to severe cupping. I have been putting the thick stuff on top of the 4/4 the last couple runs and that has helped a lot.
Boonesyard, the idry is going up I think 9k Jan Jan 1st.  So I would guess too late to get in on the lower pricing.
Wow, that's a big jump. May put that idea on hold.
My understanding is that the increase is largely due to the increasing price of steel. 
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Re: Vacutherm iDry input
« Reply #219 on: January 04, 2019, 12:43:44 PM »
Thanks Busy.  So thick slabs on top are pretty stable then?  And of course the deeper in the stack the better they are?  How thick are you doing your slabs?  8/4 12/4?  I want to have a 8/4 finished product.  So just trying to figure what thickness to start with to end up with 2 inches after planing or router sled surfaced that only needs finish sanding. Have you thought of a weighted pallet to top off the stack?  Any input on that?  Thanks again.
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