Search found 221 matches

by seachange
Wed Jul 11, 2012 5:25 am
Forum: Newcomer Forum
Topic: powders-good studio practice-avoiding contamination
Replies: 18
Views: 22994

Re: powders-good studio practice-avoiding contamination

Hi Cynthia Many thanks for replying, your answers are always so interesting. Also for the pictures. The idea of making little compartments on the base glass by gluing strips is great, I'll put that into action. Also about marking a corner. Made a plate with 36 colors, and a matching diagram on the c...
by seachange
Tue Jul 10, 2012 10:07 pm
Forum: Newcomer Forum
Topic: powders-good studio practice-avoiding contamination
Replies: 18
Views: 22994

powders-good studio practice-avoiding contamination

Hi, Have just started working more intensively with powders. My question relates to good studio practices to prevent cross contamination of colors and to keep the area clean. (use a proper respirator and a big white cotton shirt over my warm clothes). Because I am just starting, I am preparing small...
by seachange
Wed Jul 04, 2012 9:50 am
Forum: Techniques and Tools
Topic: drop vase - strips separating when making blank
Replies: 6
Views: 8429

Re: drop vase - strips separating when making blank

I don't have a lot of experience on this, but I'm thinking you'll have a difficult time dropping three layers 10". My guess would be that you'll stretch the blank so thin you'll get holes. I seem to remember a heuristic that says you can drop 1" for the first 2 layers, and then an additio...
by seachange
Wed Jul 04, 2012 1:19 am
Forum: Techniques and Tools
Topic: drop vase - strips separating when making blank
Replies: 6
Views: 8429

Re: drop vase - strips separating when making blank

Hi Ed many thanks for your detailed reply. I am starting to understand the factors that come into play with the different viscosities. Also to see what a full fuse is...I should probably have posted this query in the newcomers section, working this thick is a new experience for me. Then I have never...
by seachange
Sun Jul 01, 2012 3:16 am
Forum: Techniques and Tools
Topic: drop vase - strips separating when making blank
Replies: 6
Views: 8429

Re: drop vase - strips separating when making blank

My uneducated guess is that your strips were opaque. many opaque glasses are more viscose that clear glass. During the drop gravity pulls the glass gown. The softer Tekta gives more and this may cause full separation of the stiffer strips, leaving a clear line between. There may be a difference -- ...
by seachange
Sun Jul 01, 2012 2:02 am
Forum: Techniques and Tools
Topic: drop vase - strips separating when making blank
Replies: 6
Views: 8429

drop vase - strips separating when making blank

Hi Have just made my very first drop vase, ½” thick blank, dropped 6” I am happy with the results of the drop. However, I need to improve the blank. The blank layout was 2x 1/8” Tekta base, ring mold size 2 layers of colored and tekta strips on top of this base. These are shorter than the width of t...
by seachange
Sat Jun 23, 2012 9:19 pm
Forum: Techniques and Tools
Topic: Choosing flat lap disks - type and grit
Replies: 17
Views: 21692

Re: Choosing flat lap disks - type and grit

Hi Stephen

Many thanks for posting that question. I was thinking how to formulate it, and there you were :)

All the best, seachange
by seachange
Sat Jun 23, 2012 9:14 pm
Forum: Techniques and Tools
Topic: Choosing flat lap disks - type and grit
Replies: 17
Views: 21692

Re: Choosing flat lap disks - type and grit

I'll amend my previous post to add that the bowls we were working with had been dropped through a Ceramaguard (sp?) board and the "flaps" had been sawn off. The resulting bowl edges were already semi-flat, semi-smooth, and semi-parallel before we started hand grinding. (Please - no math m...
by seachange
Sat Jun 23, 2012 9:04 pm
Forum: Techniques and Tools
Topic: Choosing flat lap disks - type and grit
Replies: 17
Views: 21692

Re: Choosing flat lap disks - type and grit

The angle depends on the mold I'm using--I have a contour gauge that I set at right angles to the table, take a profile off a bowl made in that mold. Then I run a tangent off the profile and figure out where 90 degrees parallel to the blank and 90 degrees parallel to the table would be. The differe...
by seachange
Thu Jun 21, 2012 8:34 pm
Forum: Techniques and Tools
Topic: Choosing flat lap disks - type and grit
Replies: 17
Views: 21692

Re: Choosing flat lap disks - type and grit

Many thanks Morganica and David, that commercial is almost convincing :) The part I never quite understand is if this works for the polishing end of the work, let's say from 400 grit upwards, or if it is also "quick, effective, and easy" at the beginning of the grinding, the 'shaping stage...
by seachange
Thu Jun 21, 2012 5:34 am
Forum: Techniques and Tools
Topic: Choosing flat lap disks - type and grit
Replies: 17
Views: 21692

Re: Choosing flat lap disks - type and grit

I've been getting excellent results using grit. I have a rociprolap that I use to grind down the edge. I am usually super aggressive (with chipping) at 30 or 60 grit then I move to 220 - 320 and then finish with 600. I use a pad and cerium oxide to polish. Both machines are 24" diameter. The m...
by seachange
Thu Jun 21, 2012 5:25 am
Forum: Techniques and Tools
Topic: Choosing flat lap disks - type and grit
Replies: 17
Views: 21692

Re: Choosing flat lap disks - type and grit

Hi David, hi Morganica

Many thanks for all your input, great information...I just couldn't sort it out by myself :?

Will email His straight away.

All best wishes, seachange
by seachange
Tue Jun 19, 2012 5:54 am
Forum: Techniques and Tools
Topic: Choosing flat lap disks - type and grit
Replies: 17
Views: 21692

Choosing flat lap disks - type and grit

Hi, Could I please have your help with choosing some flat lap disks? 16", no hole, magnetic backing. Using a converted pottery wheel. Main use will be grinding the edges of some 3 to 9 mm ( 1/8” to 3/8”) thick bowls. Horizontally, parallel to the base. Would like to achieve a “gallery quality” ...
by seachange
Sun Jun 10, 2012 2:52 am
Forum: Techniques and Tools
Topic: CNC glass scoring from Thomas Carr
Replies: 16
Views: 18480

Re: CNC glass scoring from Thomas Carr

So how much glass can a good cutter cut if a good cutter can cut glass? Before you go spending money on a fancy cutter, think of all the glass you are going to have to handle just to pay for it and then sell to currently non existent customers. I know, I know. We just like machines, and if it could...
by seachange
Sun Jun 10, 2012 2:46 am
Forum: Techniques and Tools
Topic: CNC glass scoring from Thomas Carr
Replies: 16
Views: 18480

Re: CNC glass scoring from Thomas Carr

A quick note. These folk have a terrific reputation. Aussie. http://rolanddg.com.au/index Peter. Hi Peter, thanks for the link. I used to know Roland for their plotters, was interesting to see that they have now moved into other equipment as well. Their price range, starting at 30000 + :shock: is t...
by seachange
Sun Jun 10, 2012 2:38 am
Forum: Techniques and Tools
Topic: CNC glass scoring from Thomas Carr
Replies: 16
Views: 18480

Re: CNC glass scoring from Thomas Carr

Well I actually ordered it. Twice. Never received it. Went to see one in New Orleans. It didn't. meet by needs. That one was returned. I don't know if he is still in business. Like I said, I bought a wood cutting CNC and built a glass scoring head attachment for it. Works very well. A little pricey...
by seachange
Sat Jun 09, 2012 7:30 pm
Forum: Techniques and Tools
Topic: CNC glass scoring from Thomas Carr
Replies: 16
Views: 18480

Re: CNC glass scoring from Thomas Carr

Hi , and I hope all is going well for you. I met Brad at his workshop a few months ago. He was talking about getting parts and plans to build his own CNC machinery. He was confident it would work well, said plans and the parts system was pretty well organised now. Hope he saees your post, or if not...
by seachange
Sat Jun 09, 2012 3:38 am
Forum: Techniques and Tools
Topic: CNC glass scoring from Thomas Carr
Replies: 16
Views: 18480

CNC glass scoring from Thomas Carr

Hi, Would love to know if anyone has seen one of these machines in real life http://www.youtube.com/watch?v=QLhvdrWuNKE&feature=autoplay&list=ULgnQOfOZWJ9w&playnext=1 , and your thoughts. Have never seen a comment here on the board. The video is from 2010. I remember many years ago there...
by seachange
Fri Jun 01, 2012 8:37 pm
Forum: Newcomer Forum
Topic: cutting circles
Replies: 14
Views: 17351

Re: cutting circles

Sorry....that is too much waste for me especially when you are making large rounds. I maybe leave 1/8" extra and no problems here! Hi Laurie, are you cutting the circles with only 1/8" extra from Sys 96 or BE? I use BE, but have had the opportunity to use 96 in a workshop, and thought tha...
by seachange
Sat Dec 15, 2007 5:21 am
Forum: Techniques and Tools
Topic: quick cutting tool from Doug Randall's video
Replies: 4
Views: 7684

Re: quick cutting tool from Doug Randall's video

Thank you Tom and Lauri. Have checked the tools you suggested. From the shape, the only one that 'looks' similar is the Glasstar. I suppose in principle all work in a similar way. Have sent a private message to Doug also, just is case there is another good quality product out there that hasn't come ...