Likes: 0
Needs Pictures: 0
Picture(s) thanks: 0
Results 1 to 7 of 7
Thread: These guides look dodgy to me.
-
13th September 2020, 02:44 PM #1Woodturner with a shed
- Join Date
- Nov 2007
- Location
- Caboolture, QLD, Aust
- Posts
- 236
These guides look dodgy to me.
How interchangeable are bandsaw parts?
The bearing race guides on my old Rexon RBS-12A seem strange. The bearings which form the top guides run in line with the blade, not perpendicular like most modern saws. They don't run on the blade to prevent twisting, just sorts alongside. Plus there's nothing at the back of the blade to support it. I'm getting big wavy cuts and the guides don't seem to help.
I'm cutting mostly rip cuts in old, dry, black bean and other Australian hardwoods with a half inch, 3 TPI blade (TCT I think? From H&F)
Can the guide block be changed to something a little more functional? Something from the current century, decade even?
Cheers
Redbeard
Sent from my SM-N975F using Tapatalk
Cheers
Redbeard
-
13th September 2020 02:44 PM # ADSGoogle Adsense Advertisement
- Join Date
- Always
- Location
- Advertising world
- Posts
- Many
-
13th September 2020, 04:13 PM #2GOLD MEMBER
- Join Date
- May 2011
- Location
- Albury
- Posts
- 3,041
That guide block casting looks very similar to the one on my older Carbatec 18" bandsaw. In lieu of the two bearings mine has round wood/friction material guides that bear directly on the blade. Those two bearings look like a jerry built job to me. A thrust bearing should be located behind the guides in the mounting hole you can see at the rear top of the mounting block. Despite undertaking some intensive searches for suitable guides for my saw I've never been able to locate any. I've found any greasy hard wood, Spotted Gum for example, works pretty well for guide material.
-
13th September 2020, 04:31 PM #3Woodturner with a shed
- Join Date
- Nov 2007
- Location
- Caboolture, QLD, Aust
- Posts
- 236
Aldav
I certainly agree with you about the side guides I've wondered about them being an aftermarket/dodgy installation. And if that mounting hole at the back was in line with the blade I'd agree with you about that as well but it's way off to one side it looks like a mount for a circle cutting guide, like the ones h&f sell. It could probably be adapted to the purpose.
I'm thinking I've got some Gympie messmate which would make a nice hard guide is pretty dry but a couple of days in some linseed oil would fix that.
Sent from my SM-N975F using Tapatalk
Cheers
Redbeard
-
13th September 2020, 04:58 PM #4Senior Member
- Join Date
- Apr 2017
- Location
- Éire
- Age
- 39
- Posts
- 300
They look the same as the Elektra Beckum guides.
I can't see what the problem is if they are not made of the same pot metal.
I copied the design as it was the simplest to get the job done, rough as a pigs .
If it were to be upgraded, it would have to be tool-less adjustment.
Tom
-
13th September 2020, 05:19 PM #5GOLD MEMBER
- Join Date
- May 2011
- Location
- Albury
- Posts
- 3,041
The thrust bearing is generally a bigger diameter and the rear of the blade rides on the edge of it, not the centre, that's why the offset mounting. Looking on the net they do look exactly like Elektra Beckum guides - weird!
On my saw the guide blocks are located by a grub screw in the front of the mounting bracket, the bottom of the bracket is not detachable so I couldn't use that type of guide, wouldn't be able to get them in.
-
13th September 2020, 07:01 PM #6Senior Member
- Join Date
- Jul 2008
- Location
- geelong
- Posts
- 359
I have a Taiwanese? bandsaw (No name or origin known) that had the rear bearing running on the tire -so to speak with a mild steel sleeve. Kinda ok till the bearing died -then the back of the blade sliced through from friction. Can get the bearing in one size only -the sleeve is an issue and the whole set up was not ideal. The bearing was held in a yoke screwed in or out on a threaded shaft in line with the blade.
-
14th September 2020, 06:03 PM #7Woodturner with a shed
- Join Date
- Nov 2007
- Location
- Caboolture, QLD, Aust
- Posts
- 236
Thanks Tom, I think you've put me on the right path. It looks like what I have is the same as the Elektra Beckum guides, dodgy metal and all.
I found this on another thread
https://r.tapatalk.com/shareLink/top...ink_source=app
With links to photos of guides identical to mine.
There was also a link to this
Blade Guide Upgrade Kit For - Elektra Beckum BAS 315 & 316 Bandsaws - Bedford Saw & Tool - Tools, Accessories, Woodworking Machinery
Which looks like the solution to at least some of my woes.
You guys rock
Cheers
Redbeard
Sent from my SM-N975F using Tapatalk
Cheers
Redbeard
Similar Threads
-
My dodgy first box
By Biggus in forum BOX MAKINGReplies: 7Last Post: 21st July 2020, 11:23 AM -
Dodgy blades
By Tim Creeper in forum SMALL TIMBER MILLINGReplies: 25Last Post: 22nd June 2013, 06:31 PM -
Dodgy links
By 3 toed sloth in forum FORUMS INFO, HELP, DISCUSSION & FEEDBACKReplies: 4Last Post: 3rd October 2009, 07:00 AM