Help with making collisions for drag detectors

[hya123456h (KingBob)]

Ok so I have a drag detector which I only want to move up and down

however it would go straight through objects. So I made this code which would add collision to it

local function CanMoveDirection(axis,d)
	
	local TouchingParts = game.Workspace:GetPartBoundsInBox(script.Parent.CFrame,script.Parent.Size)
	
	if table.find(TouchingParts,script.Parent) then
		table.remove(TouchingParts,table.find(TouchingParts,script.Parent))
	end
	
	print(TouchingParts)
	
	for i,v in pairs(TouchingParts) do
		
		--print(v.Position[axis] < script.Parent.Position[axis], "less")
		--print(v.Position[axis] > script.Parent.Position[axis], "greater")
		
		if d == true then
			if v.Position[axis] > script.Parent.Position[axis] then
				--print("Is greater")
				return false
			end
		end
		
		if d == false then
			if v.Position[axis] < script.Parent.Position[axis] then
				--print("Is less")
				return false
			end
		end
		
	end
	
	return true
end


script.Parent.DragDetector.DragContinue:Connect(function(player, cursorRay)
	-- Get the object being dragged
	local target = script.Parent
	
	-- Check if the object can move in the direction of the cursor ray
	local d = cursorRay.Direction.Unit.Y > 0
	
	local canMove = CanMoveDirection("Y",d)

	-- If the object can move, change its position
	
	
	if canMove then
		--print("Can go")
		LastC = target.Position
	else
		--print("Failed")
		target.Position = LastC
		
	end
end)

This works great as you can see in the video
however at the end it clipped through the baseplate for no reason. I have done all the debugging and nothing was wrong. Looked around the devforum already but found no solution. Any help would be very appreciated

[hya123456h (KingBob)]

Fixed it by making the MaxDrag translation 1 and the MinDrag translation -1