So I have wanted to build a remote control snowblower for a long time.
Standing outside in the cold, getting covered in blowing snow, and tweaking my back on occasion was enough motivation for me to finally take the plunge and build the project this year!
Maintenance and Insights
Maintenance
had to adjust cutting edge 3x so far - hitting lip in concrete somewhere
lost spring for chute tensioner - now zip tied
lost drive axle keyway after a couple tanks of gas - added lock tight to set screws
120rpm chute motor went bad - bad component, used 50rpm as stand in
now using 250 rpm chute motor - seems like perfect max speed
keeping chute bearing, all chains, and drive axles coated in grease and oil to prevent rusting.
Insights
very impressed with machine, extremely capable and working perfectly
compact length and width is highly maneuverable and very controllable
absolutely need the ability to raise and lower blower body/cutting edge
upped speed on left right to 100% now that I am used to controls. way more aggressive turning and more fun!
glad I dont have a caster in the back for stability
300lbs + tracks = never stuck yet
longer power connector out of electrical box would be better
1:1 drive ratio from motors to tracks is perfect speed and power
lever from actuator to body could speed up lift
people cant stop staring lol
maintence mode: ability to jack front tracks off ground with body actuator, then lift up on back and place block under frame - perfect for maintence and testing if you need tracks off of ground. The body angle also gives you decent access to sprockets and set screws. Without this replacing that keyway might have required tear down!
xt-60 disconnects on the drive motors was a good call for the same reason, better for testing/maintenance.
any thin spots in the paint will identify themselves with rust spots..
maybe park it on a slight ramp to allow snow on top of skid plate to drain? moisture could end up trapped between plastic skid plate and bottom of frame..should inspect in spring.
reason i went with this sized blower is because it felt like a good match with the track size and suspected machine weight. I was trying to keep it all in scale with emphasis on traction and not getting stuck. I also needed something that would fit in my cramped garage and that I could park next to my car without being to big.
maybe I should have used two linear actuators for the body, the shaft now has 1/2in of play in it. I will tear it down in spring or when it breaks which ever comes first. must be worn threads. probably steel acme thread on aluminum nut. I have been using it hard and ramming snow banks lol. Might have to develop my own linear actuators.
so the ability to have the cutting edge go down far enough to jack the tracks off the ground a couple inches is important for more than easy maintenance. Today I had about 3in of hard pack where the mail man drove over the plow pile by the mail box for a couple days. The tracks were just riding over it. Putting the cutting edge at max negative angle allowed the blower to dig down through it and literally break up and spit out the chunks. Had to go slow but it was amazing it did it!Tried the same technique on roof pile and it didnt try to ride up the bank and didnt have to ram it (only 17in this time though)
Turns out it is also a decent stand in for a power trailer dolly. Yard was to wet for the car, but it was able to yank a loaded trailer through the wet yard, up a slight incline (5deg?) and out. I did have to apply force to the handle to keep it from doing a wheelie since the weight balance was off.
I also got the car stuck in the yard and it took 4hours to get it out, but thats another story grumble grumble
On 02.14.22 - 1:40pm John Cairns wrote:
Wow, thank you. I am attempting to build one similar to yours. I am going to use 4 wheels instead of the track. My weakness is the electronics so glad you explained it in so much detail. Will ave to watch this many times before mine is completed so thanks again.
