wakefield area

[crashtestdummy]

Yeah just got 100g of 80 grit and used half of it so will need much more for the 22" probably in 60 grit to as 80 seems to last less than 30 seconds for one wet.

Going to buy a sharpening stone for bevelling this aft

[mapstar]

I'll get looking then if we're ordering the glass at the end of the month.

Got sharpening stones of various grades having wood working gear and will get some grit for the big grind

[crashtestdummy]

I need to make a sturdy grinding table for the 22" blank as the workmate I'm using with the 12" is at it's limit with my grinding power!!!run out of grit now so 100g doesn't go far and has got me to about a 2-2.5mm sagitta on a 12" blank.

[mapstar]

Did it have a curve already crash? I seem to remember it had had some work already?

I have the table saw which I'll probably use as it weighs 90kg so is well sturdy or possibly an old piece of kitchen worktop on home made trestles?

[crashtestdummy]

No I've started on the otherwise so started from scratch.obviously a 22" mirror is another prospect altogether!

[Soupy]

Sounds like you got a major project on your hands there guys. Good luck with it. I got some weights in the garage if you want to develop those forearms any more.

Hi Matt you got the HEQ 6? Will take a bit of weight and be more sturdy than the EQ5 , nice one good luck with it.

[crashtestdummy]

I'm looking for about 10" stainless weight disc

[MattGoo]

Yes, just got back from picking up the EQ6. A bargain I think.

It's basically as new, sadly the guy bought it and then never used it due to an injury sustained in a car accident. He said it had never been outside and it certainly looks in pristine condition.

In white, with all accessories, 2x counterweights, v3 Synscan handset, upgraded bolts, EQMOD cable for £625.

Now I just need some kind of powertank and clear skies

[crashtestdummy]

i think the clear skies are the hard part

[Soupy]

Think we all need clear skies

[mapstar]

I'm looking for about 10" stainless weight disc

May be really hard to find so I'm probably just going mild steel as it should be o.k. once you move on to a tile tool and start with that.

[crashtestdummy]

The main work is going to be hogging out the curve depth with a sub diameter tool,easily 50+ hours before you even think about a tile tool.dunno how mild steel would hold up????

[crashtestdummy]

Have you decided on your focal length yet?

[mapstar]

I'm gonna go for the 72" like I'd worked out for the 10.7mm sagitta.F3.69 think it worked out to.

Mild steel will be fine as the tile tool will clean up any rust.

Few hours a week should see it done by spring

[crashtestdummy]

pretty much the same as me,had set my sites on a 2000mm focal length but was initially advised to stick with 2250 for an easier life on the grinding.talked to john today and he says a 50% weight disc for the hogging followed by a 75% tile tool for the second stage of grinding

[mapstar]

I'll have to work that one out for the sagitta and 2000mm may be better for me as it would at a guess work out at just over 6ft?

[crashtestdummy]

Yeah I've looked at a 2000mm due to my height.my current scope is 16" f4.5 with a fl of 1829mm and I'm on tiptoes at zenith although I pretty much never view at zenith.as I have a coma corrector,f3.6 won't pose any problems.

[Soupy]

All sounds very technical guys think you two are leaving us all behind with this mirror grinding lark ;-)

[Soupy]

By the way Damian, received my replacement bins today, brand new pair. Happy days.

[stonemonkeylives]

Quick question, is everyone happy with the AN report I put on the Google Drive? If so I will email it tomorrow.

Sent from my GT-I9505 using Tapatalk

[Soupy]

Won't let me read it on ipad Jeremy, not sure why

[Soupy]

Managed a work around, needs a few spelling adjustments but is an excellent report.

[stonemonkeylives]

Yeah I noticed them after I uploaded it. I'll change them before I email it off.

Sent from my GT-I9505 using Tapatalk

[Soupy]

Cheers Jeremy

[crashtestdummy]

For some reason I can't upload to the Google drive so I've had to post links in the wadas thread