Home built belt grinder/linisher design: belt backing plate.
Last edited by SAG 180; 07-15-2011 at 12:54 PM.
Wow, your current belt speeds are Hooting along. Maybe i should go and measure the speed of my Linisher / radius master.
I have a belt sander that has what looks like graphite sheeting that is worn out after 18 years that I need to replace. Do you have a brand or descriptive name for the sheeting along with a source?
Originally Posted by SAG 180
Heller & sons has them for their belt grinders. Believe they come in 3" and 6" widths. Not sure about the lengths, maybe about 15" to 18".
I had a piece of planer knife stock probably M2 that I use on my Burr-king. If you bevel the edges on the plate the scarf joint runs smother over the back up.
Or, if practical have the back up off the belt in free run, it will wear the belt and the back up less. Once you apply a little pressure the belt will contact the back up.
I just know of it as graphite backing cloth, I think it's fairly common at abrasive shops.
Originally Posted by TDegenhart
Steve: I did radius the ends of the plate and it makes a difference, I've yet to run any scarf joint belts on it. The belt set up so it clicks a bit on the plate when I tap it with a finger.
How do you like the Radius Master, good / bad.
Sag 180 sorry for diverging the thread a bit. Thanks.
Nice beltgrinder but I hope your motor is dustproof.
Originally Posted by salzburg
It is....I think all new motors sold round here have to be sealed units these days. The motor needs sheet metal dust cover as the motor fan does suck the dust into the cooling fins.
Alan in case you don't hear from Gordo: The Radius Master is a really good unit that works as advertised. The only hassles I've noticed is the three smaller rollers can be hard on belt joins round their tighter radius and the small ball bearings those rollers use wear out quicker than larger diameter wheels.
Originally Posted by Alan
Last edited by SAG 180; 07-16-2011 at 04:13 PM.
Thanks for the info mate, considering have a go at one. On your question, the Makita hand held belt sanders have a graphite sheet between the sole plate and belt, seems to work well.
To be honest, i LOVE IT!!!
Originally Posted by Alan
it is the most useful machine i have in my so-called workshop area. As SAG mentioned the tight radius is a real problem for low grade (economy) belts. The ones i use are "Deer Foss" brand (not sure of the spelling) and i have had absolutely no issues at all with them in regards to the small radii diameters that the 'Master has. As for the bearings, after 6 years of moderate-heavy use (used on almost every project / job) they still spin like new.
Im happy i bought the machine when i did, it made life Easier than cake.
PS: sorry for getting OT /hijacking the thread partly