I have a Granberg set up with a 572XP Husqvarna and 28in. bar/rip chains. Works well. Can mill 16in+ spruce. I avoided the whole ladder/rail setup as being too costly, too restrictive on length/size and too bulky to pack in. I use a stringline setup and sliding 2x9 board on a series of nails leveled and set into the tree to make that all important first cut. I use a chalk line and smaller saw to square the timber. 10 inch SkilSaw to rip boards. I cut beams and posts for the garage addition as well as barn siding, milled some trees in place for a gate. I can carry that setup anywhere on this property and mill any tree I can fall.
I bought some dimensional lumber and plywood to frame the skid shack. When I looked at the cost, 2500CAD, and the time it would have taken to mill enough material to replace it, as well as the size of the next three projects, we decided to go ahead and purchase a sawmill.
I looked at a Woodland Mills band few years ago at Magard Tools in Prince George. Having talked to a two band owners, I didn't feel I wanted to spend the rest of my time sharpening little bandsaw teeth, nor was I impressed with the sturdiness of the blades, especially regards sand. I did buy a Woodland 68 PTO limb chipper. Maurice has since sold the company, but the website is still up,
https://logbuildingtools.ca/ and the new owner, Scott is excellent to deal with.
We bought a D&L Timbertech 816. They have been making these for about 20? yrs. Brunette Machinery, maker of industrial sawmill equipment in P.G., bought D&L few years ago and modified/streamlined the manufacture.
The flexibility of the mill was what appealed to me. Once I level off my timber, I can set up a series of rips, 1x3, 1x4 and siding widths, then slab them off after swinging the blade, until I get to the dimension of the beam/post I need to mill, like wise with the side slabs. Minimizes waste or extra hand ripping.
I can mill multiple sizes of material off the same timber, all without having to turn the work. I also skid my milling trees with the cat in the winter to minimize mud in the bark.
I don't have all the nuances of the operation figured out yet, but so far output has been good. The mill came with a 23h.p. electric start Kohler, an extra 21in. carbide blade and an electric sharpener/jig. Also included the parts to assemble a carriage to move the mill across ground and set on rails, which I have not yet used.
An option was a jig that locks the blade in a number of canted positions to mill beveled siding or posts. They had a sale and threw in a really well made set of sliding log dogs to hold the work as well as the bevel.
I bought the smaller version not just because of costs, the mill was 3x a nice bandsaw mill, but because like your brother, I want to have the ability to mount this on a trailer, needed to fit between the fenderwells. His setup sounds really well thought out. I eventually want the mill palletized so I don't need a dedicated trailer to pull it into the woods. We have more than 6 mi. of road/fenceline/fireguard on this property and I'd like to mill some of the more inaccessible timber. I would likely walk the backhoe out to handle trees.
I used the shipping pallet to stage the sawmill thereby extending it's length capacity. I'm sure that's a nono.
Negatives.
The owner's book was very dated, and a bit vague. Obviously written stream of consciousness style by someone who has been building these things through all the iterations over the years. Some things overlooked. There is a good FBook forum for Timbertech owners, if that is your thing. I don't participate. Usage videos are posted online.
I dozed a temporary level area in my driveway for setup, road filled it. The rail system is pretty solid, but was short one leveling bar. Needs one at every joint in my opinion, as well as ends. I had to build something. I had hell over the winter with snow, freezing and thawing, keeping the rails level and mated just right to the pallet. I'm okay for now with the location of my current setup, that was a question, so I am going to drill and pour some concrete piers, build a new permanent platform/shelter with a roof, make it all more stable, get it out of the weather.
This thing throws a lot of sawdust. the kerf is double that of a big bandsaw. The parrots will scream waste, but if you are milling dimensional lumber from 12-14in. logs, the difference is irrelevant. You cant save enough wood to make a difference. Milling siding from 18in. logs, you'd have a point, but that is not the typical usage. The flexibility to usefully mill the side slabs as you go, makes up for a lot of that anyhow, I believe.
Fuel usage seems decent, LiFePo4 battery, started up in cold January weather w/out trouble. Think the engine alternator is big enough to run a small LED work light setup, can't find much to complain about. Carbide tipped blade, very robust, durable. Nice unit.
Someone asked in another thread about running a mill off solar. D&L offers an electric version. Needs three-phase power which I have no current interest in. My offgrid capacity is too small. However, D&L told me when I asked, that a fella named Rob from Okanogan Solar was running one of their mills off of solar power. I bought a bunch of Canadian Solar panels from him two years ago, sharp guy, very nice. He does not have the time to spend fending off questions from forum groupies, but if an electric sawmill makes serious sense to you and you live in western Canada, D&L and Okanogan Solar can set you up.
https://timbertechnologies.com/
As far as the shack goes, thank you. Yes, having a tenon through, even if flush cut was not what I wanted. The dovetail has a bigger cross section and unless the tenon is housed as well, more resistance to twisting. No penetrations to the joint for water/rot to enter was my plan. I also framed the floor hanging over the skids for a drip edge and flashed the framing/floor with galvanized L metal, same idea.
I thought about insulating the floor, still waffling. Fixing to frame walls, looks like a no go. I would have to lift the platform and sheet the bottom with plywood to keep the packrats from destroying it later. Nothing else of all the ideas I have read makes sense.