BG-272 Gallery of Builds

Since I made the BG-272 Belt Grinder in 2013, there have been many knifemakers that have built their own variations. As makers of things, we often use whatever parts are available and this means every build is something personal and unique. Note that a lot of builds are using wheels and platens from Oregon Blade Maker. You may want to check them out on eBay.

This is a gallery of some of the amazing builds that have have been submitted to me since 2013.

This is Derek Melton's 2 x 72" with a 2 hp motor and VFD combo. The best part of this setup is that
it tilts 90° so it goes vertical or horizontal. Nice setup!













Kenneth DeRosier's 2"x72" with stepped sheaves on a 2 hp 4 pole 1800 RPM motor for variable speed.

That giant work rest is sweet!










From the Netherlands, Lars Langveld's version with a 1.5 horsepower TEFC motor driven by a VFD.






















Michael Sargent's 2"x72" powered by a 2 horsepower Hitachi motor and TECO VFD.













Rob Chapman's version with stepped sheaves and right-hand side motor. 3600 RPM featuring a 5-4-3 pulley and 5" drive wheel.  Love the power switch!










Take a look at Rob Chapman's spring setup. The is actually pulling the pillar upwards! Springs are from a futon mattress frame.

















Luke Gibson's build. Direct drive in red and black and features a riding lawn mower seat spring for the tensioning.
















Seth Mullet's build with a 1.5 horsepower 3600 RPM air compressor motor on stepped sheave. The motor is mounted underneath. The flat platen I believe is from Oregon Blade Maker.

















Here's Todd's build using the stepped sheave setup for multiple speeds.














This is Lin's build with a 1-1/2 hp direct drive two pole motor running full load at 3450 rpm. The drive wheel is 3-1/2", the tracking wheel is 2-1/2" and the platen wheels are 2".

Lin did all his own machine work. Very cool build!











Here's a couple of grinders built by Steve Gann. One is for himself in blue, and the other is for his school metal shop where he's a teacher. The motors are 1.5 horsepower 2 pole TEFC.

Great looking builds Steve! Thanks for sending the photos.


  
























This is Glenn's nicely refined grinder. In South Africa belt grinders are not so common, so he set out to build his own. Very well done with a TEFC motor and Variable Frequency Drive. Hope to see lots knives coming off the bench Glenn.


















Anthony sent this picture of his 2" x 72". An amazing build. Being from the Yukon (northern Canada) he had to work extra hard to get all the parts in, but the results impressive.

2 Hp 3600 RPM 3 phase motor 240 V, Hitachi Inverter, 5” Drive wheel and adjustable work rest. Also a remote start/stop, Fwd/Rev, speed control potentiometer and tachometer... plus extremely cool blue LEDs in the drive enclosure!














This is Craig's build. A 2 horsepower three phase motor driven by a Yaskawa J1000 VFD. Craig tweaked the design to make use of 1525 mm belts which are common in the UK




UPDATE: Marinus at Oregon Blade Maker is offering some high performance, yet light-weight and durable grinder wheels for a low cost 2x72" DIY build.

These wheels are engineered, glass-filled nylon (durable composite plastic) with 1616RS bearings. The wheels in this set are two 2-1/4"x 2" and one larger diameter crowned 2-1/4" x 3" which is designed to assist in belt tracking.

The installed wheel's bearings are 1616RS which will mount with any 1/2" bolt. Plan for three 1/2" NC x 3" Grade 8 bolts and suitable nylon lock nuts.




Thank you for submitting your grinder builds. Hopefully there are many more to come.


If you have built a grinder based on this design, please send me a photo and let me know some specs. I'll be happy to show yours here. My email address is

Dan

5 comments:

  1. Thanks so much for posting all these!!!

    ReplyDelete
  2. thankyou somuch, my only question is the belt adjusting wheel has a slight angle on its surface... is this nessessary, new to machiening and im doing it all from scratch cant figure out how i will do this on my new roller im making

    ReplyDelete
    Replies
    1. Yes, having the tracking wheel crowned is important as the belt which is flat tries to position itself to the center of the wheel as that is the largest diameter. This improves belt stability.

      Dan

      Delete
  3. Hey Dan,

    I'm a hug fan and have been lurking your site for some time now, however, I recently found a post on Craigslist for a belt grinder I am very interested in.

    I took the time to compare/contrast it to the builds you have posted on your site, however, I would really like a professional opinion on the pictures before I go in to talk to the seller.

    https://losangeles.craigslist.org/lgb/tls/6001785483.html

    Any input would be greatly appreciate, thanks for your time!

    - Kev

    ReplyDelete
    Replies
    1. Kev,

      It looks pretty good. The motor is a decent horsepower. The build quality looks good from what I can see in the photos. Give it a spin. See how the belt tracks. Push some steel into it and see how it performs.

      Dan

      Delete