I see now
Stainless steel would be ok, but quite heavy
Also, I think the front plate (where the base plate is attached) could be a bit shorter
This would decrease leverage
How much weight did you put on it?
Iām 90kg, so all of itā¦
The design loads were 60kg as in 120/2
Iām 68kg, so I think those would be ok for me
But I get that stronger is better
Yeah but if you accidentally hit a pothole or whatever I bet the force would be bigger then a bouncy 90 kg load
Maybe add one more piece?
Maybe 5160 steel. Think leaf spring
If the mounting holes are moved back near the drop bend, they will improve stiffness. They are now too far at the bracketās front leaving too much space between the mounting plate hole pattern and the drop, thus there is considerable bending now.
I think the double bracket design is clever and normally it should be enough for strength and structural loads purposes, but the hole pattern was placed to far at front so all the double bracket design advantages were lost.
There would normally be a deck thereā¦ so this piece would have to be custom made for each particular
Youāre right, moving the holes back will reduce the bending moment.
Thereās a concern with bending line too close to the holes, I donāt want surprises there
you mean deformities on the holes? i think you can solve that by drilling the holes after, also there are design rules for that!
eggzakery
I had these thoughts about spring steel long ago, but never acted on itā¦
I have a forge and anvil.
I donāt want to complicate the production, these are laser cut and then bent
then hammers and tongs buddy
for science
I trust you know how to anneal the steel back to spring steel propertiesā¦
Yup. Cut and drill and bend then hardend it back up
Actually a leaf spring is about the right width
yes most are, but itās the thickness of the leaf-spring that stopped me in my tracksā¦
not TOO hard and yet hard enuff to not be malleableā¦