Home |
Search |
Today's Posts |
|
Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to rec.crafts.metalworking
|
|||
|
|||
Help! Bandsaw blade guides
I recently purchased a DoALL bandsaw that had been converted long ago
from a band filer. When the new guides were fitted the upper guides were mounted upside down. These are the typical guides that are angled at the ends and when installed make a VEE shaped assembly. The point of the VEE should be pointing up but these guides instead have the VEE pointing down. Because of this chips get caught in the valley of the VEE and are dragged by the saw blade into the tiny gap between the blade and the guide. The blade is galled because of this. Furthermore, the guides are only 3/8" thick and the saw takes 3/4" blades. So I am going to change guides and I don't know which guides would be the best. I will not be using roller guides. But there are new blade guides made from different materials available now and I would appreciate advice on which would be best. Thanks, Eric |
#2
Posted to rec.crafts.metalworking
|
|||
|
|||
Help! Bandsaw blade guides
wrote in message ... I recently purchased a DoALL bandsaw that had been converted long ago from a band filer. When the new guides were fitted the upper guides were mounted upside down. These are the typical guides that are angled at the ends and when installed make a VEE shaped assembly. The point of the VEE should be pointing up but these guides instead have the VEE pointing down. Because of this chips get caught in the valley of the VEE and are dragged by the saw blade into the tiny gap between the blade and the guide. The blade is galled because of this. Furthermore, the guides are only 3/8" thick and the saw takes 3/4" blades. So I am going to change guides and I don't know which guides would be the best. I will not be using roller guides. But there are new blade guides made from different materials available now and I would appreciate advice on which would be best. Thanks, DoAll can most likely help, strongly suggest give them a call. If it's a horizontal, then likely it is supposed to have carbide-lined guides--any reputable tool grind shop should be able to braze new carbide onto a mild steel guide blanks that you've fabricated in-house. It's very important to keep carbide guides well lubricated--wear occurs much faster with water soluble coolant than it does with straight cutting oil. |
#3
Posted to rec.crafts.metalworking
|
|||
|
|||
Help! Bandsaw blade guides
|
#4
Posted to rec.crafts.metalworking
|
|||
|
|||
Help! Bandsaw blade guides
On Mar 16, 2:27*pm, wrote:
I recently purchased a DoALL bandsaw that had been converted long ago from a band filer. When the new guides were fitted the upper guides were mounted upside down. These are the typical guides that are angled at the ends and when installed make a VEE shaped assembly. The point of the VEE should be pointing up but these guides instead have the VEE pointing down. Because of this chips get caught in the valley of the VEE and are dragged by the saw blade into the tiny gap between the blade and the guide. The blade is galled because of this. Furthermore, the guides are only 3/8" thick and the saw takes 3/4" blades. So I am going to change guides and I don't know which guides would be the best. I will not be using roller guides. But there are new blade guides made from different materials available now and I would appreciate advice on which would be best. Thanks, Eric My comments are free and maybe only worth what you pay. They are not based on experience. I would think the guides are oriented correctly , but maybe not big enough. I would try using UHMW poly for the guides. It is cheap. Grainger and MSC both carry it. It is very abrasive resistant and very slick too. i would expect any chips would embed in the plastic and not gall the blade. Do not know if guides made of UHMW poly are available, but should be easy to make guides from raw stock. Dan |
#5
Posted to rec.crafts.metalworking
|
|||
|
|||
Help! Bandsaw blade guides
wrote in message ... I recently purchased a DoALL bandsaw that had been converted long ago from a band filer. When the new guides were fitted the upper guides were mounted upside down. These are the typical guides that are angled at the ends and when installed make a VEE shaped assembly. The point of the VEE should be pointing up but these guides instead have the VEE pointing down. Because of this chips get caught in the valley of the VEE and are dragged by the saw blade into the tiny gap between the blade and the guide. The blade is galled because of this. Furthermore, the guides are only 3/8" thick and the saw takes 3/4" blades. So I am going to change guides and I don't know which guides would be the best. I will not be using roller guides. But there are new blade guides made from different materials available now and I would appreciate advice on which would be best. Thanks, Eric The guides in use are incorrect for the blade size. They should support the blade back, nearly to the teeth, so profile sawing is possible. In regards to the direction they point, that is correct. If they pointed up, the blade would lack the required support for profile sawing, which is DoAll's claim to fame. The solid jaws are superior to bearings, because they lend support closer to the needed area. If you are plagued with chip problems, the gap is not correct. Set the clearance according to factory specs and you'll find the guides work very well. Harold |
#6
Posted to rec.crafts.metalworking
|
|||
|
|||
Help! Bandsaw blade guides
|
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Bandsaw Guides | Woodworking | |||
HF bandsaw problem - blade riding down out of guides | Metalworking | |||
Interesting - For Leon RIKON 14" Bandsaw Blade Guides | Woodworking | |||
How to replace 14" bandsaw wheel bearing? (not blade guides) | Woodworking | |||
bandsaw guides | Woodworking |