Mahogany species

[ucoulddoit]

1 hour ago, nepia said:

A lack of locking mechanism in the open position?  Wildly guessing here as no-one else has

That was one of the details which took a while to sort out as it wasn't obvious from pictures on the internet. As well as the legs spreading apart, I realised the top step might flip up, like a see saw if someone stood on the front edge. Photo below ( a bit blurry) shows the L shaped grooves for the brass rod at the back of the top step.

 

 

Fingers crossed, that seems OK. But I might recess a couple of 3mm brass plates around the bottom of the groove as the brass rod will wear the wood over time.

 

Andrew

[ucoulddoit]

1 hour ago, Dan Maynard said:

difficult to spot anything wrong.

Especially as I've tried to sort out the problem! But I still have a niggling doubt.

 

Andrew

[ucoulddoit]

Surprised no one has figured out the design flaw. To narrow it down, it’s the top folding step / platform. I’ve tried to fix the design flaw, but what did I get wrong? Answer tomorrow if no one gets to it first.

 

Andrew

[Squaredy]

1 hour ago, ucoulddoit said:

Surprised no one has figured out the design flaw. To narrow it down, it’s the top folding step / platform. I’ve tried to fix the design flaw, but what did I get wrong? Answer tomorrow if no one gets to it first.

 

Andrew

To be fair, the reward was perhaps a little meagre!

 

 The next design flaw should offer at least a load of highly valuable Walnut logs as an incentive.

Edited September 1, 2022 by Squaredy

[ucoulddoit]

9 minutes ago, Squaredy said:

 The next design flaw should offer at least a load of highly valuable Walnut logs as an incentive.

I had wondered about a highly valuable mahogany stair tread as the prize, but they are just too valuable to me......

 

Andrew

[Squaredy]

1 hour ago, ucoulddoit said:

I had wondered about a highly valuable mahogany stair tread as the prize, but they are just too valuable to me......

 

Andrew

Yeah, if you took off one of the treads you would have another flaw...

[Doug Tait]

I've looked and wondered for a 3rd evening in a row and cannot see a design flaw, look forward to tomorrow when you end the suspense.

 

They are a lovely looking step though, whatever the flaw turns out to be.

[Sutton]

1 hour ago, Doug Tait said:

I've looked and wondered for a 3rd evening in a row and cannot see a design flaw, look forward to tomorrow when you end the suspense.

 

They are a lovely looking step though, whatever the flaw turns out to be.

I agree. I can only see tiny quibbles not design flaws.

The workmanship is top notch and to add any safety details would distract from the timber quality - so I hesitate even mentioning these:

1. strap to prevent the ladder splaying under load

2. non-slip feet (rubber)

3. non-slip top shelf

4. it might be that the back of the ladder stands a bit vertical, may I respectfully  suggest that the user adopt a lower centre of gravity when using it 😅

 

[Ian Leach]

😁.

[ucoulddoit]

8 hours ago, Sutton said:

I agree. I can only see tiny quibbles not design flaws.

The workmanship is top notch and to add any safety details would distract from the timber quality - so I hesitate even mentioning these:

1. strap to prevent the ladder splaying under load

2. non-slip feet (rubber)

3. non-slip top shelf

4. it might be that the back of the ladder stands a bit vertical, may I respectfully  suggest that the user adopt a lower centre of gravity when using it 😅

 

All good comments, but not what concerns me. I hope the brass bars supporting the top platform and attached to the legs are enough to prevent them splaying under load. That’s how it was done on the one I more or less copied from a photo on the internet. 

Now wondering if it’s a construction flaw, not design, as I now realise the mistake goes back to when I selected the timber for the platform? Just to confuse everyone even more.
 

Andrew