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Re: Hp inkjet based artificial star

a.johnw — Sun, 11 May 2008 21:39:02 GMT

The cartridge has 363 on it (single colour). The only bit that stick out enough to get near the paper is the black blob I mentioned. The gold tabs are clearly

Re: Hp inkjet based artificial star

jacques savard — Sun, 11 May 2008 18:48:26 GMT

probaly disolving whit alcool is good way to do waht no of inckjet cartrige do you have mine are from hp 560 or 600 jack 47'N 71'W

Re: Hp inkjet based artificial star

Tony Gondola — Sun, 11 May 2008 17:46:27 GMT

Maybe the holes are plugged with ink? Tony BigEye Optics ... From: "a.johnw" To: Sent: Sunday, May 11, 2008 8:14

Hp inkjet based artificial star

a.johnw — Sun, 11 May 2008 15:14:34 GMT

I have finally got hold of an empty hp inkjet cartridge. There doesn't seem to be any holes? There is a thin pcb with 4 gold plated tabs and a black blob. It

Re: Mirror test set ups

a.johnw — Wed, 07 May 2008 19:29:38 GMT

Hi Tom I'm going the same way with an XY foucault tester so that I can add a Z axis for a bath interferometer. Also because I was impressed by the ease of use

Re: photos of mirror test

tomofreno2000 — Tue, 06 May 2008 13:41:40 GMT

... side of the lens set to manual. This is a small slide switch on the lens body itself. This needs to set to manual. Yes, it is set to manual, and I used

Re: photos of mirror test

Wayne Hilliard — Tue, 06 May 2008 10:53:55 GMT

I have the 300D (Digital rebel). Do you have the switch on the side of the lens set to manual. This is a small slide switch on the lens body itself. This

Re: photos of mirror test

Greg Furtman — Tue, 06 May 2008 10:09:33 GMT

Don't forget that you have to turn off the auto focus on the lens. Also make sure that you have the camera in either complete manual control or aperture

Re: photos of mirror test

zway2bisfancyfree — Tue, 06 May 2008 05:51:33 GMT

... wrote: I use a different camera and autofocus works in night mode. Make sure that the tester light source is covered well enough that the camera is only

Re: photos of mirror test

Dale Eason — Tue, 06 May 2008 04:55:49 GMT

I don't know that camera but it sounds to me like you have not gotten it into a truly manual mode. Sounds to me like it is some sort of manual mode with

photos of mirror test

tomofreno2000 — Tue, 06 May 2008 02:33:34 GMT

I cannot get my Canon 300D to take photos of Foucault or Ronchi mirror tests. I have tried all modes including manual/bulb, manual focus, and always get a

Re: grinding with tile tool

zway2bisfancyfree — Mon, 05 May 2008 18:56:41 GMT

... That's good news Dave. Here is the stroke that I like for hogging but I don't go all the way to 1/2 dia. But you get the idea. It focuses on the edge.

Re: grinding with tile tool

brock.family — Mon, 05 May 2008 06:56:37 GMT

Thanks to those that replied but I'm somewhat embarassed although relieved to find it was a bit of a false alarm. Down here in NZ we work in metric. ( I

grinding with tile tool

Benjamin Waranowitz — Sun, 04 May 2008 17:43:22 GMT

Are you using too much grit? Is there something that causes the grit to not distribute evenly, possibly your cement tool? - Ben Waranowitz

Re: grinding with tile tool

Dale Eason — Sun, 04 May 2008 15:58:50 GMT

Reducing focus is easy and quicker than going the other way because you only need to remove material from the smaller center area. Reducing the edge instead of