TugboatEng
Thanks for your comments.
Do you know the material ?
Did it have the mark in my image 12 above ? Strange that the groove is not propagated like a stress fracture.
The external end of the shaft is a large T Handle, it is the only protrusion available nearby. While I don't know for sure, it seems logical that someone might attach the earth lead to the handle while welding the frame around it. I can't see any arcing on the external side of the 303SS T...
Thanks for the feedback.
Would you say this has been caused by an arc from welding or a smaller stray current over a longer timeframe ?
Or something else ?
I have experienced circlip failures where the circlip fractures/separates in what appears to be similar to crevice corrosion.
The 420SS circlip is fitted on a shaft of 303SS which passes through a rose of 303SS, over the shaft and between the rose and the circlip is a 304SS washer.
The...
Sorry it has been a progressive journey from when the post started. I was initially told the rules by the client, then finding various subsets of conflicting rules to now with 2024/2025/2026 actual rules from FIA, not an easy task to find all the rules and put them together.
We are now at these...
The Kawasaki H2 brochure states that the supercharger is capable of delivering over 200litres of air per second. Wouldn't this be a breeze🙂 through a 27mm restrictor.
It depends on the rules in regards to what is allowed to comply with the capacity limit, but I agree it was a stretch. Stock can mean all sorts of things though. Usually it will include reconditioning, which is a vague term which allow all sorts of benifits. Often too there are freedoms...
Thanks for your responses, much appreciated.
Sorry, I apologise, I've been misled on the rules.
I've looked up FIA T3.1 technical specifications (which don't seem exhaustive so I'll look further) The intention is to build a lightweight 2 person 4wd buggy (almost a side by side) suitable for...
Are you better off with more cylinders with a staggered firing order to smooth the flow through the restrictor to keep the flow rate close to peak throughout the cycle or is it better to have a single piston to increase pressure differential across the restrictor.increase air speed and have a...
I have been looking a chart or similar for choosing a thread size for taping into 5000 grade aluminium sheet. I can find "rule of thumb"type information from 1x to 2x the thread diameter for thread depth but this is not specifically for sheet metal with only one option for thread depth. I'm...
Thanks everyone, your input helped me come to the conclusion that there is no perfect solution and that I can live with minimising the slide. I settled on two mirrored simple curved faces and they are pretty good, easily good enough for my purposes.
Thanks again
Dave
The LH plate rotates CW 30° from where it is shown in the image. This forces the RH rotor to turn ACW 30°. The LH rotor is then turned 100° ACW and locked in place. The RH rotor stays in position, held by a latch until other mechanisms release it. When released by the latch the RH plate rotates...
Hi
I tried to upload an AVI file of it in motion but it didn't work.
Hope the Jpeg helps.
I am trying to stop the two faces from sliding on each other as one drives the other. I have had better success with a straight radius but it still slides.
It is probably acceptable but it's bugging me...
I'm trying to design a rotary to rotary drive 1:1 similar to a spur gear but with one contact face only as the driving part must return and lock in its start position while the driven part remains in its new position but is free to return under some circumstances. These will be in a low/no...
Thank you.
I notice Penn don't actually show a clinch stud suitable for use in stainless steel in their drill down guides. In places they say FH studs are suited to stainless steel and in others only materials ≤HB150 (304 is around HB215). I assume they are not suitable for 304 but I'll send...
