Ruddock

So the bore size has nothing to do with the power of the grinder

Making a 2 x 72 belt grinder and the plans say use a 4 inch drive wheel with a 5/8" bore. My question is can I use a bigger bore size but the same outer diameter. What is the difference in using a bigger bore

I have researched the grizzly wheel but I'm in the UK and shipping prices are sky high, the postage on the link is cheap which is an added bonus The link you had posted only displayed a page with a photo of a blue wheel, covered in pop up ads, maybe in UK it showed differently.

In in the process of making a 2x72 belt grinder and looking for contact wheels, I found this link to off site commercial site with generic contact wheels photo removed And was wondering if anyone knows if they are any good as they seem quite cheap.

Thanks Charles, think I'll use 1 layer of ceramic blank and an inch of refractory cement and a wee coat of itc-100. I think this should be sufficient.

Plan to use it for forge welding knife billits, but high temps are needed and so what amount of insulation can aid this process. I know that flux degrades the blanket which is why the refractory cement is needed but would 1 1 inch blanket be sufficient

I'm making a propane forge which needs a 8 or 9 inch chamber. The problem is the amount of insulation needed. I've done a bit of research and noticed that most people used a layer of ceramic blanket about an inch thick, a layer of castable refractory and itc 100, my question is how many layers of ceramic blanket and how much castable refractory is necessary to sustain heat, the forge will be a blown propane forge.

I am very thankful for your advice.

How much time exactly have you wasted to write a post which barely takes a few minutes to write. Use your time to teach other people and not put them down

If you don't want to help that's fine but I have done the basic research. I know the types of forges, different burners available, what to use for insulation. All I needed was a design I could use and modify for my own needs which where clearly outlined in the first post. What would you classify as "basic research"

First of all there are no classes in the north of Ireland. In fact blacksmithing or bladesmithing is very rare over here, perhaps some in the south. I'm only a young enthusiast looking to learn these techniques and save some money along the way by making the tools. The way I learn is up to me.

M cochran. Good links. My research includes asking questions on these forums. If I see something I don't understand I like to ask people who have more knowledge than me that's how I learn.

The two links provided are atmospheric burners. I need a good design of a forced air burner.also how many burners are needed in a 2ft long forge.

I do blacksmithing in a coal forge and have made a few knives but I want to move onto gas and want to make longer knives or swords. I want to make a gas forge and the burners but need a design and the amount of burners needed.

I'm looking to build a gas forge, it is going to be a forced air forge. The shape is a cylinder and the length is 2ft and the diameter is 1ft with 2 inch of insulation around the circumference. Nothing is made yet in case I need to change the size but I needed to know how many burners would this need to get to welding temperature. I have the ability to make a burner if there is a designs available. Any help would be greatly appreciated.