Member postings for Robert Butler

The OP makes it clear that whoever takes on the engines has the ability to finish them and by implication this would indicate the dedication, skill, machinery and time. This seems fair enough.

Robert Butler

Colin, ER32 every time.

Robert Butler

"Don't shoot me" Personally I would be disinclined to waste the shot and certainly wouldn't be willing to do the time.

Robert Butler

Starrett, US of A $16, no doubt plus tax, duty and carriage.

Robert Butler

OP promoted to Moderator as well now! And after 4 pages of posts we are are back to where we started from as with other Forum Topics posted by OP who also lacks grace.

If this "invention" ever gets beyond prototype stage I pity the poor bugger who draws the short straw to put it into production.

Robert Butler

I would repeat in response to the last question by John NO

Robert Butler

NO

Robert Butler

It was the OP who indicated he possessed the Clarkson

Robert Butler

In these circumstance a radius gauge can only serve as a comparator given the use of a deburring wheel or hand file to produce the radius. Therefore simple radius gauges should be more than adequate due to the variability of manufacture. Radius gauges have a flat datum surface to bear on the sample and assuming the sample is flat the approximate radius (which is all that can be hoped for) established.

Robert Butler

As the OP has advised the component has a variable (hand made) radius, what exactly is being measured? A simple set of radius gauges viewed against a light source will produce an indication of the radius and allow acceptance or rejection of the component. Anything else appears to be a waste of time and money.

I hope we will all be able to retire on our share of the Royalties from this device when it comes to market.

Robert Butler

The Helios Preisser H0597305 radius gauge works by offering the test piece to the gauge with the two relevant edges containing the radius against the gauge and the calibrated angular slide advanced until it touches the radius. A reading is then taken from the Vernier scale and compared to tables supplied? or calculated? I know not which. It all depends on the accuracy of the radius.

Robert Butler

Edited By Robert Butler on 30/12/2021 16:11:54

A very small radius gauge!

Robert Butler

308 still on the home page!!

Robert Butler

You could of course always ask the "friendly supplier" who having suggested the deburring wheel is perhaps better equipped to provide the definitive answer and if necessary suitable adaptors.

Robert Butler

You might get the mandrel and hence the chuck to reverse the direction of rotation.

Robert Butler

ARC also list studs T nuts available separately.

Robert Butler

Warco? Possibly!

Robert Butler

Michael tried to delete my post, mustn't be so impetuous and read your post fully

Robert Butler

Michael G, try Minie Ball.

Robert Butler

Edited By Robert Butler on 08/11/2021 18:19:29

Drill two holes on the diameter and create a pin spanner to suit, or drill one hole on the perimeter for a C spanner.

Robert Butler