fasteddie313
Well-known member
Well here is my drill press, I figured I'd post it up because its quite interesting, because I have some questions about it, and maybe to straighten out a misconception about the vari-slo I see mentioned a lot.
First off its due for new belts, but I have to figure out how to get that top linkage/brace between the 2 inner pulley axles off to get access to the belts. I have not yet put a lot of research in toward that.
Second is that I see everyone say that the veri-slo system depends on belt slippage to control speed which is not the case. The veri-slo pulleys in the middle work like snowmobile style variable sheaves to change the input/output ratio.
If you look at one of those double pulleys it basically has 3 sheaves, the 2 on the outsides are fixed and the middle sheave floats back and forth to where one side gets skinnier and the belt rides higher up the sheave acting like a bigger pulley while the other side gets wider and the belt rides down further into it acting like a small diameter pulley. The speed is changed via the difference in effective pulley diameters and has nothing to do with belt slip, if the belts are slipping its not working right. There will be pictures of this contraption in both high and low speed settings that show the 2 opposite extremes of the pulley movement (granted with **** belts).
My machine also has the tilt table, I am in the market for that tapered pin that centers the tilt table at 0 degrees, mine seems to be MIA.
It is also equipped with an Atlas 1/3 hp motor, If you know anything about that I'd be delighted to hear it. It looks like it has been apart and back together because it has yellow paint marker on it marked to index the ends to the center. It runs nice, smooth, and quiet..
First off its due for new belts, but I have to figure out how to get that top linkage/brace between the 2 inner pulley axles off to get access to the belts. I have not yet put a lot of research in toward that.
Second is that I see everyone say that the veri-slo system depends on belt slippage to control speed which is not the case. The veri-slo pulleys in the middle work like snowmobile style variable sheaves to change the input/output ratio.
If you look at one of those double pulleys it basically has 3 sheaves, the 2 on the outsides are fixed and the middle sheave floats back and forth to where one side gets skinnier and the belt rides higher up the sheave acting like a bigger pulley while the other side gets wider and the belt rides down further into it acting like a small diameter pulley. The speed is changed via the difference in effective pulley diameters and has nothing to do with belt slip, if the belts are slipping its not working right. There will be pictures of this contraption in both high and low speed settings that show the 2 opposite extremes of the pulley movement (granted with **** belts).
My machine also has the tilt table, I am in the market for that tapered pin that centers the tilt table at 0 degrees, mine seems to be MIA.
It is also equipped with an Atlas 1/3 hp motor, If you know anything about that I'd be delighted to hear it. It looks like it has been apart and back together because it has yellow paint marker on it marked to index the ends to the center. It runs nice, smooth, and quiet..
