puddleduck engine build

Gallery, Projects and General > Project Logs

<< < (12/14) > >>

ParCan:
Hi All

Spent most of another weekend in the workshop...

The RDG Vice I bought does lift ~0.2mm. It's on my list of things to fix.
I plan to make 2 new clamp strips, machined so that they hold the jaws as the designer intended.
I /could/ machine the Vice itself but that seems like an awfull lot of work compared to making 2 new Gib Strips.

I have to say that it's far betterer than the 1st vice I got for amadeal.

Back to the engine....

Mk1 Control valve was to wayward so I have made another.
It's darn near perfic (unless you see it close up that is)
Made the leaver out of a failed con rod, then knocked the ball off I put on the end. Oh Well.

Eccentric straps are solderd and installed. I still need to clean some of the soldering residue off.
Spool valve packing glands are in and working reasonably freely.

I thought I had a bit of 1/2" steel bar to make the Steam Pipe Standoff flange doofahs from, no such luck :(
I have some on order. Should be here this week.

Almost there, but so far away ....

Alex

ParCan:
Hi All

The RDG Tools 80 mm Milling Vice I bought, "80MM Swivel Base Milling Vice" RDG Ref: 1209.

Whilst the castings and Jaws are well made, the failings are in the rest of the product.
I stripped it down and cleaned it, followed by a generous lube gave me a vice.

However - The jaw lift was just crazy. 0.2+ mm.
This made it almost impossible to clamp anything and keep it clamped square.

The issue was that the Gib Strips are far from what the designer intended. They were 10mm wide X 8mm thick.
This left most of the fixed jaw slide unsupported.

2 Strips of 5mm X 20 mm X 70 mm Mild Steel bar were cut.
Dropped em in the vice, milled both ends square then the edges to 16 mm wide.

6 mm from the edges I drilled 6.5 mm holes on 50mm centers to suite the casting holes M6 Bolts. (6.5 mm to give me a bit of adjustment)

I now have a vice with almost zero lift on the jaw. < 0.02mm)

I'll do some images when I take it all apart again.

Alex.

PekkaNF:
THANK YOU! Just sort of information I was after. I have a relatively big russian made vice that has been ground all over and it is really nice. Got it almost 15 years ago on very nice price and got lucy with it's quality. However sometimes two identical smaller (lower) vices would be really nice to have and because of this "two" and "sometimes" I'm reluctant to buy quality/premium vice and at the same time need reasonable quality. I was hoping someone finds reasonable semifabricated product and has experice to produce method of fixing them to a usable form.

under 0,02 mm real word lift on cheap vice ir a really good accievement. Not allways sheer neccessity, but saves time and complications many times over.

Pekka

ParCan:
The fix for the vice was Very easy.
I just put it back the way the designer intended in my opinion.
Alex.

ParCan:
Mixed Bag today.

I made the stand off's and cut the tubes.
They all went reasonably well.

I decided not to thin them down as per the drawings.
I can understand that the pipes need to be as thin as possible but I want to get this one complete.

Soldering the pipes to the flanges was easy enough.

My Blow lamp is however not man enough to do the valve block :(

I'll nip over to a friend who has a BIG torch and do that tomorrow.
The same friend also has a compressor !

I'll take a video camera with me.

Navigation

 Message Index

Go to full version