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Dengue, The BBQ does not get hot enough to do anything interesting to the metallurgy of the iron. if you want fully annealed cast iron you need to get it hotter much hotter, glowing bright yellow...

Just an update, I'm a little behind schedule, It seems no matter how extra time I throw at the them they contrive to swallow me whole, but it is not without its little joys; Here is one that I was...

Sorry Ewan, Nope, I have not pulled out the interferometer since I got them off you. :( Its a happy day when I do need to pull it out though. Do you need em back?

On the Omer Robbins it has two...

I'm still a fan of a positional Sexagesimal system. It has been around a long time ~3000BC, we still use it today time angles etc, has the best of base 10 and base 12. It stacks very well and also...

Nar, my guess is that they looked at the books and figured out what it was actually costing to produce them now..

Actually, now that I look at it I can't see a price jump? maybe I'm not looking...

I still have a pattern for the locking collar knocking about, if you fail to get a good piece at the end of braising it up let me know.

-Josh

Scrap metal merchants are also worth a try, as they tend to keep anvils aside. But also failing at having an actual anvil they would probably have a chunk of steel not anvil shaped that would suffice...

A couple of suggestions

A Section of Saw Makers
An Off-cut of Saw Makers
A Saga of Saw Makers
An Incision of Saw Makers

-J

:(. How is it treating you other than cleaving tiles that it?

November, (but late november) still look to be a goer even with all the break downs, but I'm saving the real painful ones for last as I'm still very anxious about clamping for the 3mm-6mm chisels as...

Both good points. I'm unclear if it is required or not, based on the FEA modeling it would suggest no it does not need an extra plate over the top. That being said there is 4mm clearance between the...

Soon...

I tweaked the design a little more, for simpler build and better use of steel. I also made the calculations for the deflection of the double beam thingy and for the springs free length.
...

Revision 2.0 Draft: A simpler build.

Ok Will do, It will just mean an extra layer, a measurement pad to be mounted on the top of the arm for the indicator, and a few more holes and screws.

Stay tuned for version 2.

-J

Here are a couple of drafts, still working through the rest.

-Josh

Edit Added some more

Sure thing Joe, the schematics are underway.

If you want to play around with the PDF if you right click you have all sorts of options, the one I always change it is the render mode to shaded...

Ok, more simplicity or more protection?

And do you think we need a fine adjustment mechanism?

-J

Thanks for the feedback Joe they are all very good points.

I'll see if my brain is still working at this hour and try to explain what I was thinking.

The Little block IS a clamp for the...

More detailed Repeat Meter

-J

Please comment, question etc...

The one in the pdf is ~5.5kg

I was going to mate it with a mass balanced arm for a camera, but I like the way you think Stuart. ;)

-Josh

Deckelexia....

I like the 3D pdf for many reasons, but you can also take measurements, isolated parts, do cross sections off them etc.
That's interesting. the GGG spec had them with the two feet at the back, hmmm...

The pdf are just a way to encapsulate a .u3d model. If you are having trouble viewing it try Adobe Acrobat 7 or later.

I u3d for iphone is not supported as it is a light weight implementation of...

Franz wants super ridiculous premium on everything.

I recently got my hands on some nice 7075 aluminium scrap, and I figured I could build a nice little 3 axis gimbal out of it.
It is just a side project while I work on other things.

Anyway see...

Here is a quick rough out of the shape and important features.

Based on feedback I'll do a more refined/detailed design.

based on the 5" centres of the US standard, easily changed to the 100mm...

sounds like a rounding error. turn up the precision in your spreadsheet for accurate calculations.
-J

Nothing major. The cross slide DRO scale on the lathe had came loose.

I took a clean up pass, measure, set DRO offset, and proceeded to turn with the DRO and power feed and feed stops so I can...

Learnt to make sure the DRO scale is firmly mounted....

just a few more from the nets.

291518291519291520291521291522

cheers, I presume it is camped in place to give a knife edge flex point?

Basically a chuck-able sine bar

291505

Are you thinking something like the Sinuskator?

-J

I think can identify a possible maker of that block as Obishi


291471

see here

any idea on where the flex point is? is it in the middle or on the bottom?

Cool,

I'll draw it up to suit mahr.

-J

Oh Yeah, it was a cold process, I can't remember the name of the company that made the products, but most of the 10 tubes were for rinses from memory.
-J

He did draw some very long bows.

When he said the automatons turned against their masters I was immediately thought of ATM's leading the charge. :)

-J

I'll throw a couple more out there
1. Copper/Selenium Blackening
2. Caustic Black Oxiding (I'm guessing this would be the China method for bolts?)
3. Black Dyed Oxalate Coating

-Josh

If I understand you right, you just need to elongate the slotted holes right? if so the file would make pretty quick work of that.

Update: Phil mod + handle.
-J

Phil,
Ooooo, I like that mod...

:)

-J

I have seen them around but non of them seem to have a consistent name.. :(



Semi off topic I have been playing around with an idea after tying to get a really good hold on a part while milling...

I quite like our fake Mitutoyo 0.01mm DTI's, even the fakes are still pretty good.

-J

: ) It's a good size...Maybe they will average out,

If you do make a repeatOmeter, I have some rough idea's on how they are put together.

-J

See attached. as simple as it gets.

All round that gauging quality episode was good.

As far as specs go, If anyone here is a student or an apprentice, I pretty sure you have access to all the australian standards the ones of...

When CERN shut down the LHC for luminosity upgrades they sent their helium back to their suppliers for safe keeping. fingers crossed that it is still there when they are back online.

CERN pull power from the French and the Swiss grid. I worked out that they use at least some 36MW just in cooling the the LHC.

Power supply for them is a huge problem, so much so rather and...