Stuff you have made today

[Nick DV]

The flatness depends on the ratio, cutter diameter, and number of cutters. When I get time, I think I'll code a program to calculate and show the variations.

The reason for opting for this is for some parts I need the flats at the chuck end, which with basic live tools would need some form of long lipped/stepped cutter like a t-slot cutter, whereas polygonal doesn't have the same clearance issues.
To do the same job without polygonal would need a full Y axis.

Now you're going too fast for me.....................................

 

[Aff]

Sorry Gents, must be too early for me.

Both good reasons, cheers

 

[slim_boy_fat]

I'm now feeling particularly dim....

 

[Country Joe]

Now you're going too fast for me.....................................

And me, too!

Sorry Gents, must be too early for me.

Both good reasons, cheers

Same here!

I'm now feeling particularly dim....

Just like I do - and on so many subjects!

But I'm kinda thankful that I'm not the only one here who's devoid of any such (abstract - for those without lathes) knowledge!
I can get by in a few different languages, but this is almost like learning a new one - except slightly harder!

All the Best,
CJ

 

[m_c]

This animation shows the process in slow motion

 

[The_Yellow_Ardvark]

This has been mentioned here before.
A nice vertical burner. Twin jet.



Burning away and looking good.
But it is a Benzene fuelled item, I don't have benzene. I have paraffin.

So today a friend helped me convert it to paraffin.
A simple job, to do.

Alter the jets, the size is depending on what size jet hole and internal dimensions. I took good advise from a very good place.

The jets were a pain to remove, but we done it.
I all ready had the NRV done, so one les job.



WOW.
What a difference, to the sound and the heat generated.



Balanced burn pattern as well.

 

[jimbo84]

Made this, some 25x25x2mm box and some 25x3, 50x3mm and 50x5mm flat.




But what is it I hear you ask (probably not).

It's one of these...


That will fit behind the drivers seat.


And my sectional ladder will strap to it.

 

[Fraserb]

Made a start getting next year's harvest growing.

 

[Memmeddu]

Nothing special just practice
M12 Allen bolt welded on an ½" galvanized water pipe (barely 3mm thick)
Used 312L electrode to avoid zinc fumes
Unfortunately cleaning the bolt it loose its colours
80A

 

[Kram]

@Shedendman it is done

And I had *another* go at the cbr6 fairing. I am getting better at it but still very orange peely. I think one more coat tomorrow - each fresh attempt I am flatting 1200 grit, so there is not very much paint.

 

[highseas]

While not today.. Some of this weeks galv shipment got fitted

 

[nickk]

An unusual handrail up a stone and oak spiral staircase,customer also wanted a gate at the top,this was a lovely tactile traditional rope about 38mm diameter.

 

[Kram]

Done.

The Upol S2085 was very nice to spray, perfect consistency, no runs, used about 100ml for two coats. Started on all the edges then the flat bits. The bottle has some extremely long chemical names - Smells of marzipan

 

[Johnnybravo]

Ive not seen that expained before, I assumed the cutting tool moves in and out rather than spinning.

The cutting tool spins. All in ratios, so for a triangle,you need the tool spinning three times faster than the spindle, a hexagon 6 times as fast. I used to make special fasteners on an Index Cam auto lathe.No cnc in sight. Used to make screws with triangular heads for use in the miners caplamps. 13seconds each, complete with head and thread, so not a slow process.

 

[Agroshield]

...All in ratios, so for a triangle,you need the tool spinning three times faster than the spindle, a hexagon 6 times as fast.

The spindle:tool ratio also depends on the number of inserts in the cutter. It also influences the shape (concave or convex) of the flat produced. This presentation is very good (skip to 20 min. for specific discussion on shape, insert and ratio):

Overall, I was disappointed though as it did not give me any info. on making counterfeit 50p coins.

 

[selectedgrub]

Laser cut this hex

 

[Tupers]

I had a crack at descaling my 20mm table top with brick acid. It didn’t remove the bigger bits of scale completely but it did well of a 3 hour soak.

Duct tape walls and diluted brick acid.

Three hours and a light wire brushing latter.

 

[nickk]

Remember the pergoda,well some copper sheets arrived,quarter hard,so props soft,and the first of 16 sheets placed,I’ve cut slits in the sheets to help form the concave profiles,especially as the radius increases higher up,4 pop rivets used on the first sheet,some slots were used as tags,second photo shows me pulling them around with tongs to keep a tight wrap gripping the framework.Only the last closing sheet will have visible rivets.

 

[selectedgrub]

A bit more

 

[gaz1]

@nickk

this way

the standing edge has a pull down to make it tight and solid to your roof