How to convert a Harbor Freight 1x30 belt grinder to DC variable speed reversible for sharpening
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- Опубліковано 15 тра 2021
- Converting a Harbor Freight 1x30 belt grinder to DC variable speed reversible. This makes it easier to sharpen tools without overheating them or removing too much metal. The video has slides and audio that explain the details of the entire process of conversion and then videos showing it in use.
A belt grinder is one of the simplest and easiest motorized ways to sharpen! I use it to sharpen all my wood lathe tools but also my chef's knives, scissors, and even my pruning shears. There are many tutorials specifically about sharpening - this one is about how I modified the AC grinder to make it much more versatile along with an easy way to reproducibly set the angles.
Sharpening lathe tools does not need to be expensive. I spent about $150 USD including the original tool. The fixed angle jigs I show cost nearly nothing and the bowl gouge jig is made from a pegboard hanger, a piece of PVC pipe, and a bolt.
Be sure to read, understand, and follow all of the instructions that come with your tools. I am not responsible for, well, anything you do with them! This shows how I did it and you are most definitely on your own.
Excellent video. This deserves far more views.
My man! This was a great vid tutorial and showed just enough for what we just need something like that. Plus you touched on very important subjects especially ruining the temper of a knife or utensil! Very nice build with the retro fitting with the motor, forward/reverse and the speed control was it for me! Stay safe and thanks again for the time and explanation of that great build!
Very nice. Well done. Not that simple to build for most of us but a very needed setup for sharpening knives. Speed is a killer 😎
ONE OF THE VERY BEST videos on working with the 1x30 belt grinder. thanks for the patience and explanation of different types of hand tools.. The speed reducer certainly is a plus .thank you. the schematics look like the work of an engineer, very useful.
Wow, thanks!
I have an old Black and Decker belt sander somewhere collecting dust. I'll have to see what I can come up with for it! Just started turning and need a sharpening system. Thanks for sharing.
Great video. Love the sharpening system. Recently took a motor out of one of those vibrating exercise plates which I think is just be right for this.
I've build a lathe tool sharpening system for a 2 x 48 but it doesn't handle the micro turning tools that I got with a vintage micro lathe I just bought. The guy I bought it from happened to throw in a 1 x 30 grinder, so finding your video may be serendipity. I feel a build in the pipeline.
Thanks
Fantastic guide, thank you for taking time to film and document the build! And I have right donor scooter n my garage :)
Good job, you get a gold star.
Great video! Thanks. I’m going to spend a lot more than I want to a make it back in labor.
This is so cool! I want one!
Wow. Amazing work my friend!
Thanks a lot!
AWESOME! You must be an engineer, clear, concise, extremely detailed. (Takes one to know one. If your not you should be.) Thank you so much. Love the sharpening guides. I will be doing this to my Delta version of the 1 x 30.
Thank you so much!
Wow!!! Thank you so very much for taking all the time and effort to share your system with us all. You are amazing!!! This is exactly what I need to sharpen my tools and knives and I am ordering parts right now. I am waiting for the harbor freight march spring sale to get my 1 x 30 unit. Do you have a wiring diagram of how to connect all the parts? I am pretty good at putting things together but electricity really baffles me :-) Thank you so much!
JP
I may come back to this video later for parts lists if I get a 1x30, but in the mean time I noticed your tools catching on the blocks a bit. If you take some melamine edge banding and stick it to the block it will add a nice almost friction free surface to rest the tools on, should help clean things up a bit, unless you have fixed that problem since of course.
Nice set up! I just got one as well a 1” by 30 belt sander. I would like the plans as well. Thank you.
You happen a link for that DC motor?
How I can get pdf version?
So this would be for any tool sharpening correct? Like knife making and the works? Also what is the max and min rpms?
I was curious if you could make the presentation available to us to download via PDF? I'm very interested in doing this project and really like what you have done!
I went ahead and ordered the parts for the conversion and am following your lead on this - should be fun to build and get it running for my setup.
I have a PDF to send out. I watermark the recipient's name all over it so someone doesn't try to sell the plans.
Thanks for this! This may be a stupid question but Iam I correct in assuming a VFD will not work with this HF sander?? I am looking for a variable speed sander for woodworking, picked up this 1x30 beauty assuming I could use the variable speed controller but before I sink any money into that I’d like to know if it will work. Thanks in advance for your reply!&
How’s the machine going so far?
Do you have this DC motor plugged into an AC wall outlet? Sounds like you do when reading your parts list. I want to see if I can power this grinder from my solar setup. Plug it into the charge controller for power.
The DC motor is plugged into an AC to DC converter power supply.
None of my high dollar lathe tools has never touched a belt sander and never will
Super high end knife makers use belt sanders. A high end lathe supply company sells a belt sander. It's just a different way to sharpen, not better and not worse. Whatever works for you that you're willing to use as often as necessary works.
I just purchased this sander, and am using a small 5A variac to control speed on the rare occasions I need to.
Does anyone know what type of AC motor is on this sander...and if it's possible to reverse direction with something similar to how the polarity will reverse direction on a DC motor?
Reversing direction of most all AC motors is not simple.
Reverse, lie it on it's back then the belt runs away from you
But then the jigs would be annoying to use, right?