u/M1nDz0r

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Every time I used grub screws in the gears, they eventually failed. Either by chewing up the surrounding plastic or pulling out the threaded insert. I figured that using a flanged rivet nut would be a better solution, as the flange hooks onto the inside of the gear and there's enough material around it to prevent it from pulling out.

P1S 0.4 nozzle. 1.2 layer hight

We're in the process of buying a house we really like. A chimney breast was removed by a previous previous owner, but there is no Building Regulations approval and no structural engineer's report. The current sellers bought the property with the same uncertainty and their own survey in 2021 recommended further investigation because the support is concealed.

The sellers have said they won't commission a structural report themselves and believe it's up to us to carry out any further investigations. They also say they've had no issues during their ownership.

We're considering giving them the following ultimatum:

"We are willing to cover the cost of the survey, on the understanding that if the survey identifies any significant issues, you would be willing to renegotiate the purchase price accordingly.

Alternatively, if the asking price is already your absolute minimum and you would not be prepared to reduce it regardless of the survey findings, then we would not be willing to pay for the survey and would withdraw from the purchase."

Is this a reasonable position to take, or does it come across as unreasonable? Has anyone been in a similar situation, and how did it work out?

What's the best course of action?