Work in Progress 2013

[ygmir]

ok, got the loading side and door and mechanisms put together, final welding will be when assebled.
door closed and side panel channel sizes 5, 4, 3, 3, 2, 3,3,4,5 inches:



door open and gasket flange:

hinge, from left and right. 1" solid bar, 1/2" pins:



handle:

closed and locked, from inside 3" channel strong backs:

[Box Burner]

damn fine job ygmir!

[trilobyte]

Fantastic work, Yggy!

[ygmir]

got the initial sides and bottom put together and tacked.
to my amazement, the pieces fit with just minor adjustments necessary.
damn, it's bigger than it seems in the drawings in my head.

two sides and bottom, pulling curve out of side and shimming for alignment and height :
three sides (two wall sides, and viewing glass door), adjusting and straightening with screw binder:

four sides on, looking down to interior:

loading door, towards room:

fire viewing glass/door, towards room:

rear and side, towards wall ( I may still add stong back, like the right side):

[ygmir]

ok
got all 6 sides welded together. I had to order the 3/8 thick, 36x42 top, from new, which is a bummer, but no suitable used plate could be had locally, so, I did it.
and, to my surprise it seems to have stayed good and flat, thanks to welding advice from Looneytune, about stitch welding, balancing all sides, and just doing a little at a time, letting things cool between sessions. It took 2 days to just weld the top on.
the rest of the structure also stayed surprisingly square, with only minor adjustments when putting the top on.
As soon as I find the flue pipe I need, I'll cut the exhaust port in the top, attach pipe and do some "test burns" to see how it does. But most importantly, graduating heating and cooling cycles, at a "unit", to relieve stresses from welding: *note stick welds no de-slagged yet*

This is how it will face the "room", it's sort of going in a corner. Loading door to the left, glass viewing door, right:


loading door to right, left side towards wall:


left is viewing door, right side to wall, and include auxilary smoke inlet (if I decide to add and extra, small stove), and/or fresh air intake, for a line from outside, directly into the stove. I may add another fresh air inlet lower.



adjustable air inlet, to create a "swirl" in the fire pattern inside, for efficiency (I hope). It goes into a pipe, with holes drilled in one direction, just below the smoke shelf, to send the circulation back towards the front, and add some fresh combustion air, to help burn unburned gasses at the top.


underside of smoke shelf, aux. input in back, and horizontal pipe with holes, for the adjustable air intlet, above: (taken from the loading door)


the two rear legs are adjustable:


checking for warpage in top........came out pretty good:

I add my dainty hand, for scale:

[Elorrum]

[burner von braun]

The Hofstove looks great yg! Do you draw up your projects first, or perhaps just the tricky parts ...or do you work straight out of your head and have at it?

It looks like a terrific addition to the Hof!

[Elliot]

Yep, definitely worthy of applause by Tex Avery's "Woolfie"!

[ygmir]

The Hofstove looks great yg! Do you draw up your projects first, or perhaps just the tricky parts ...or do you work straight out of your head and have at it?

It looks like a terrific addition to the Hof!

Thanks gang!

yeah, BVB, I mostly work from my head, as I go. Of course, I make some soapstone scribbles as I go along, mostly to figure materials.
I think in one pic you can see my calculations for how big the flue should be.

I don't really know mechanical drawing and such. I'm sure at times it'd make stuff easier.

[FIGJAM]

Naw, drawings just get in the way of doing.

[theCryptofishist]

I'm sure that there are some who can work it all out in their head. I have a friend who can cut something to the perfect size without measuring. I'm guessing it's a rare talent. But in a world of 7 billion, he can't be the only one. I think that in one of her books Temple Grandin talks about being able to see something 3-d in her head when she designs it.
Others can probably get by with sketches and measurements.
and some need the detailed blueprints.
And those probably wouldn't help me at all...

[burner von braun]

I'm endlessly fascinated by the creative process, both the motivation and formation of ideas, as well as the more tangible aspect of physically building a thing.

As for me, typically I will sketch around, drawing an idea or object from several angles if need be, working out details, determing what shape various parts should be and how they will fit together, or move, and be properly fastened. Not everything mind you, but areas which for me seem difficult or unresolved get drawn up as a loose sketch. I rarely resort to drafting, but if space is acute in the design somehow, I'll retrieve the ol' architects scale and draw a few precise lines on paper to check on something.

I love to draw, so this process always seems like fun, but on occasion, I believe, it is a good exercise for me to build something relatively simple without any preliminary drawing at all. I admire those of you who are able to just jump right in there and build with a minimum of mistakes, having already worked things out in your head.

[FIGJAM]

It's more like as I build the idea, I can better see what is needed.

If I draw out all the details, I might miss some esential component because I "stuck" to my "plan".

[ygmir]

I'd go with a lot of that, FJ.

[ygmir]

ok, got the stove to oven flue pipes made (nested) and stove floor and wall lining in:

floor and wall linings, brackets welded, door gasket in place:


squaring outer pipe to stove top:


took another section of the 8" (I.D.) pipe, to resize smaller, to slide inside to allow assemble and adjustment of oven related to wall when installed. First cut, noting how much the pipe sprung open. "pop, surprise":


actual piece removed, to create new circumference, length, to when welded, it'll fit inside the other piece:


getting ready to bend/flex pipe inwards, hopefully pretty evenly, to establish new diameter:


pulled together, note cable clamp to keep cable and pipe from spinning, as well as C clamp, also matching edges angle ground for better surface area and penetration of weld:



final alignment of edges before welding:


inner weld:


outer weld, ground flat/smooth:


I had to hammer a little, the pipe was 3/8" out of round, but, my 4 lb. hammer convinced it to take shape, and it slid right in the outer original pipe.

[burner von braun]

*gives cable clamp a dog biscuit*

[trilobyte]

Yesterday I split a couple of the long-running threads to give them fresh starts for the new year. But looking at this one again, it's a shame to split it in the middle of ygmir's awesome HofStove project - so I shifted some posts around so that project's all in the new thread. Think of it as how car companies come out with their new year models in the fall of the previous year

If you have a little time to kill and want to see some awesome and inspiring projects that other burners have gotten up to, go back to the original thread and page through the posts. Otherwise, if you're working on awesome art or DIY projects, feel free to share your work in progress...

[burner von braun]

Well, I've nearly completed the "radial arm sliding compound mitre swingarm chopsaw" bench..






A very long board can extend on out through the secondary doors at either end if need be




At some point I'll probably need to get a better saw..

[trilobyte]

Impressive build, and OMG hilarious saw!

[ygmir]

*spits juice on screen*........haah BVB.....great saw!!

nice bench. I want to do that, at some point, too. now I'm just using the portable stand for jobsites.

[ygmir]

I did get the hole in the top cut, and the lower flue piece attached. the upper, smaller pipe I made will be attached to the oven, and slide inside this one.
I did an experiment, too, today.
I cut the hole with a jigsaw, trying a couple different types of blades. It turns out, not only does tooth count make a big difference, along with type, but it seem brand, as well.
One saw blade (the best one) would probably have cut the entire 25" in the 3/8 plate, but I switched blades half way, to try the other. the second would not even do half the circle.


cutting with two different blades, the jigsaw worked amazingly well:


hole cut out, pretty clean cut for a jigsaw in 3/8" steel:


pipe welded in place:

[ygmir]

first fire!!
I changed the exhaust location, for a better balance with the oven, and, to make a circulation pattern for the exhaust .
seemed to fire fine, only one really loud "pop/bang" after burning for half an hour or so. I guess I'll see if it was just "settling", or if any weld maybe broke. I expect a little of that, considering all the different parts and thicknesses. I think once a few heat/cooling cycles, progressively hotter, all will settle, anneal, and stresses will even out......well I hope so.
I set a post at center, to raise the top plate, hopefully with a little pressure, to take out the 3/32 or so sag I seem to have developed . Hoping a few heat/cool cycles will re-set the plate. I can then remove the post.
The secondary air flow system I made, to direct moving incoming air right in front of the glass seemed to work well, I could see the movement in the smoke as the fire was lighting, and the window seemed to stay pretty clean. Also the vent for the outside air, when opened, drew well.
I opened the rear, 4" auxiliary port, and could watch the flame circulation and interaction in the upper combustion chamber, very cool, almost like watching some sort of plasma/aurora type shapes and movements of flames.

first, small fire with scrap fir and cedar, so lower heats. the top got up to about 400 deg. F. according to my little point and read infrared thermometer. Sides up to 300 deg.


loading door and view door, with air vents open and glowing:


from loading door, air vents open, upper one for air for secondary combusition above the smoke shelf, also allows viewing the burn and flame caracteristics.


loading door open, you can see the prop in the middle for raising the top plate:

[Elliot]

Looks like you have it chained down -- in case it should behave like a rocket engine?

[ygmir]

ha!!! no, the chain is to tether the makeshift chimney/pipe to, for a 3 point hold so it does not fall over. I put about 15' of pipe up, to provide draw for the test.

[trilobyte]

Looking great, Ygmir!

[Elorrum]

sweet saw station bvb! ygmir, beauty of a stove. you think it and then make it. amazing.

[Patsh]

Yggy, what a Beautiful Stove!!!
Having lived with only wood stoves for cooking and heating for over 30 years, I can appreciate all about the details of draw and intake and such. I had it down 'Pat', so to speak... I could bake a jelly roll cake, an inch thick, in my little kitchen wood stove... a feat to be celebrated! (of course, I made chocolate icing instead of using jam...)
Can't wait to see this in operation... when's the next Hof party?

And BVB... gotta love your SAW!!
(say, do you need a Delta Unisaw, 50", with Beismeier fence and outfeed roller? Got one here... don't need it... brand new....)

[Ugly Dougly]

Ygmir, I might have a fireplace for you to look at.
My own chimney project pales in comparison.

...but it's warm enough for this winter. Next winter, however, I hope to have a fancier fireplace and perhaps a hot tub in the backyard...

[ygmir]

Thanks Triken! yeah, I'll want to learn your cooking techniques. Maybe some input as I make the ovens?
also, did your stove have a removable plate on the top, to set pans on for more heat? Is it needed?

Dougly: no project pales....it's all what we do, with what we've got, and you did a great job of it. I'll be happy to do what I can with your fireplace, I bet we can find (or make) something to fit and have glass doors, for that "cozy fire" ambiance, I know you love.

[Elorrum]

next, perhaps a wood fired hot tub, er I mean, a freeze resistant yak trough.