Joined: 3:36 AM - Oct 11, 2014

4:19 PM - Jun 10, 2018 #21

With all that open space below, I can see many opportunities for add-on.  Of course the drawers for storage will be a primary installation.  But I was thinking as well as for dust control.  It would not take much to make a simple cyclonic dust collection system with either a hook-up to your regular shop vacuum, or a dedicated blower.  Which could also be used as a dust collector for you other grinders perhaps?
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Joined: 12:00 AM - Jan 01, 1970

8:57 PM - Jun 11, 2018 #22

I'd considered that idea- basically just mounting a Shop-Vac under there- but the dust control thing is going to be an issue in and of itself, so I think the space will be better spent storing tools and accessories for the grinder itself.

I already have two tool arms- the square wheel and the 8" wheel- and I'll have the 4" wheel before too long, as well as a 10" wheel at some point. I'll need some way to properly store the other three when they're not being used, as well as at least one other tool-rest arm.

So I've been working up ideas on how to build a fairly secure "rack" to store them, so they don't all fall out when I tilt the machine to move it.

Doc.
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Joined: 3:36 AM - Oct 11, 2014

11:07 PM - Jun 11, 2018 #23

Two options: both would be a drawer of type.  The inside system would be the variable either way.  The first would consist of a flat drawer, with a series of dowels (wood or polymer would minimize any damage to the wheels) that the wheels sit on.  The second option would be a drawer with more depth since the wheels would sit in a simple pocket for each wheel.
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Joined: 12:00 AM - Jan 01, 1970

8:07 AM - Jun 20, 2018 #24

As I mentioned earlier, a couple of years ago, I got a 4" contact wheel from a Guild regular, although I have to admit I can't honestly recall if he gave it to me, which i think is the case, or if I bought or traded for it. I do a lot of buying and trading like that, and to that Guilder, thank you either way. :)

Anyway, this one mounts a little different from the others, as it has this "axle" sticking out to one side. The end is threaded for a bolt, and I suspect you're just suppose to drill a hole in the mounting arm and run a bolt through. I didn't like that, as it seemed awfully flimsy. It'd probably be fine for a knifemaker who doesn't put a great deal of pressure on his blades, but for my general-use needs, I wanted something stronger.



Checking it against the existing belts (note the witness marks on the tool rest) I find out it needs basically exactly one in of offset.



Rooting through the remnant pile and a bit of bandsaw work gets me these- a chunk of 1"x1-1/2", the 1-1/2" square tooling arm, and both pieces cut off at 45 degrees.



Why cut them off at 45 degrees? 'Cause that's how I roll. Any idiot can leave it square. :)

Anyway, after a quick check for clearances, I drilled, tapped and countersunk (not in that order) a 3/8"-16" hole in the end of the smaller piece.



And then drilled a slightly-less-than-5/8" hole where the axle will go.



Put the grinder back together with the other wheel and dress it up a bit...



Then TIG weld the two parts together.



Now, the reason for the undersized axle hole: I wasn't sure how square I could keep everything as I welded it, or what sort of distortion I might wind up with, so once it was fully welded and allowed to fully cool, i squared it up in the mill and bored the hole with an endmill.



A quick test-fit, and it works just fine.



And as a last step, a light cut in the bandsaw opens up a pinch slot to the axle hole.



Tap the wheel into place, eyeball an alignment, and tighten the pinch bolt. Holds solid as a rock.



Et Voila`! It's just that easy.



This one, too, tracks perfectly with the same tracking wheel setting as the other two so I'm happy. :) That gives me a 4" wheel, an 8" wheel, and the "square wheel"- and, one of the idlers on the square wheel is rubber-covered, so technically I have a 2" contact wheel as well. I think that all should serve me pretty well for the time being, though I'll likely eventually end up with either a 10" or a 12" wheel as well, maybe both.

Doc.
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Joined: 5:40 PM - Sep 11, 2014

10:35 AM - Jul 22, 2018 #25

I was re-reading this one and i saw you using the belt grinder on the belt grinder, and isn't the part where something is complete enough to help you further complete the thing you're working on the best part?

I recently rebuilt a battery powered outside stereo thing, and the best part in those is when you can have it playing music while you're fiddling the rest of the machine into working order:)
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Joined: 2:05 PM - Oct 08, 2014

12:16 PM - Jul 22, 2018 #26

FireFrenzy wrote: I was re-reading this one and i saw you using the belt grinder on the belt grinder, and isn't the part where something is complete enough to help you further complete the thing you're working on the best part?
That used to be a rite of passage for people who designed and built computers. It was a major milestone for a machine to compile its own operating system and applications.
If it ain't broke, I'll fix it!
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Joined: 5:40 PM - Sep 11, 2014

6:51 PM - Jul 23, 2018 #27

Still is for the linux/gnu/bsd crowd:P

For me its mostly a sound system providing entertainment while buttoning up the sound system
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Joined: 2:05 PM - Oct 08, 2014

8:10 PM - Jul 23, 2018 #28

FireFrenzy wrote: For me its mostly a sound system providing entertainment while buttoning up the sound system
I remember those days. Chunk an 8-track tape into a stereo to test it, then leave it playing while I put everything back together. And then maybe for another week before I called the customer to let them know it was done.
If it ain't broke, I'll fix it!
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Joined: 5:40 PM - Sep 11, 2014

4:19 PM - Jul 24, 2018 #29

For me its a bigass car amp (and i mean "250 amp RMS" big) powered of a 20Ah battery and 2 ~8" speakers in a 30x30x50cm box...

I built it (and its older obsolete brothers) because being drunk and disorderly at a hockey game was to much like work and we wanted the ability to "declare" that there was a party... Laptop with DJ softwares fit really nice ontop of the noisebox (actual name) and then there's a party wherever we happen to be at the time
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Joined: 3:32 AM - Sep 12, 2014

2:32 PM - Jul 25, 2018 #30

FireFrenzy wrote: For me its a bigass car amp (and i mean "250 amp RMS" big) powered of a 20Ah battery and 2 ~8" speakers in a 30x30x50cm box...

I built it (and its older obsolete brothers) because being drunk and disorderly at a hockey game was to much like work and we wanted the ability to "declare" that there was a party... Laptop with DJ softwares fit really nice ontop of the noisebox (actual name) and then there's a party wherever we happen to be at the time
😨😲 Holy cats. I take it there was no volume control? 😁
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