Post by: Sologuy on September 24, 2021, 03:29:40 PM
QUESTION... If I machine the idle roller Im sanding against flat.... will the belt still track due to hump on drive wheel ?
Id appreciate advice from those who have similar experience.... Im a lil stressed fellas
Thanks guys :banghead:
Post by: Mad Max on September 24, 2021, 03:42:31 PM
If yes you have nothing to loose and much to gain.
Post by: Sologuy on September 24, 2021, 04:43:23 PM
Can you buy a new roller if you mess it up?
If yes you have nothing to loose and much to gain.
Not available....
Post by: Shredd on September 24, 2021, 06:25:11 PM
My gut tells me that if you flatten that roller you could have problems maintaining your tracking... But I could be wrong and it may not make a difference... I flattened my drive roller 3" to 4" in the middle of my roller and have no issues...
Maybe someone will chime in that has flattened that roller...
Post by: Sologuy on September 25, 2021, 05:38:10 AM
Post by: Flem on September 25, 2021, 09:49:18 AM
Post by: Sologuy on September 25, 2021, 11:05:10 AM
You should only need one radiused pulley. If your drive wheel has a belly, that should do the trick. I built a 2X72" belt grinder that has 4 pulleys, plus the drive wheel and only one pulley has a slight radius. It tracks fine. If you are worried about screwing it up, the smart thing to do would be to make a flat one to swap out. Or true it up by hand after using the current set-up. Or maybe sleeve the current one with some thin tubing and set screws.
Good idea..... I taped it up to take belly out...it vibrated a lil lol...but belly was gone and it tracked ok and sanded square... Im going to decide to leave on tape or mahine roller flat...... pondering lol :pray:
Post by: Mad Max on September 25, 2021, 11:28:18 AM
The 4" driver roll is the radius roller.
Post by: Sologuy on September 25, 2021, 03:32:14 PM
My 6" x 80" Grizzly has a 1-1/2" flat roller.
The 4" driver roll is the radius roller.
Wow, no kidding ? Its basically same as miy shop fox isn't it ? My idler roller is about 3" though
Post by: Mad Max on September 25, 2021, 03:53:12 PM
(https://i.imgur.com/L6lS3bj.jpg)
Post by: Robertfishes on September 25, 2021, 11:57:05 PM
Post by: Sologuy on September 26, 2021, 09:39:04 AM
I have a 6x80 Grizzly. I had the middle 4" of the 6" Aluminum drive drum/wheel machined flat..I did buy a new one for a spare in case it did not work..no problems it works fine, still have the spare. Tracks as it should, remember when making jigs to only use the middle 4 inches that was machined flat.
Robert thanks for the tidbit... I may jneed to come visit you someday soon if ya dont mind n see that
Post by: Shredd on September 26, 2021, 12:35:48 PM
Post by: Robertfishes on September 26, 2021, 02:18:24 PM
On the Grizzly 6x80 you flatten the center 4 inches of the large aluminum drum above the electric motor because it dose not move like the adjustable "Idle Wheel".
Post by: Crooked Stic on September 26, 2021, 08:30:39 PM
Don't know what yours is.my advice would be use the drive drum because I don't think you will ever get the best results on the idler end.
Post by: OldRawhide42 on September 28, 2021, 08:53:36 AM
Bad -- the roller and table are square. But the table tilts to track the belt.
Good -- it only cost about $5 to make
If I was to do it again I would put it on the other end.
Post by: Robertfishes on September 28, 2021, 10:11:03 AM
Post by: Crooked Stic on September 28, 2021, 10:16:23 AM
Post by: Robertfishes on September 28, 2021, 10:19:45 AM
Post by: Sologuy on September 29, 2021, 06:41:47 AM
I found a shop picture from 6 or 7 years ago and cropped it to show the drum and rub coller. I remember Stic, Jess and a few others having them and I made a similar copy to what they were doing on their sanders. I have a Grizzly 6x80.
Wow, very nice !
Post by: OldRawhide42 on September 29, 2021, 08:25:26 AM