POTD- PROJECT OF THE DAY: What Did You Make In Your Shop Today?

I recently dismantled a shower door assembly I installed 8 years ago. It was working fine, but a marble tile we installed cracked and we had to remove the doors to replace it. The bottom door guide was made from aluminum extrusion with cheap plating and it was badly corroded. I replaced it with one I made from 303 stainless. The two holes are for #10 screws holding it to the shower pan, and had cheap plastic plugs covering them. The holes still filled with crud over the past 8 years and it was no fun to clean them out to get to the phillips head screws to remove the part. The holes were 5/16 diameter so I tapped them 3/8-16 and countersunk them so I could use a stainless bolt with a o ring under the head to seal the holes. Hopefully it's easier for the next person to remove.
 

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With the storage shed closed in its time to start filling it and make space in the big garage. I had to make a drop hitch for the little niva and immediately put it to the test. I loaded 3 rear axles, 2 gearboxes, engine blocks and other heavy suspension components and drove them to the shed. I had the axles hanging out and one corner come really close to the car body but because it's so short i could see it and stopped. Loading and unloading those heavy components is hard on the back because of that once i finished carrying them i stopped work for the day, more than half a ton of steel out of the garage.
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These motors are spec'd for 500-3000 RPM, but Dan (Custom Crafter) says they're stable from 300-3500 and recommends that range. It's a servo motor, so torque everywhere.
Which motor you planning to use?
Aaron
 
I'm thinking my SPFM needs to go from about 100 to 1100. That's slightly greater than 10:1. So 500 to 3000 will not cut it so to speak. 300-3000 would work but that is really at the low end of the motors range. If I need to change a pulley that would defeat the purpose for me.
I suppose I could accept a lower top end for wood and aluminum?

Actually, I just check the ratio on my saw. I am running from 150 spfm in low to 1800 spfm in high. That may be a little fast for Al but it works. For stainless I might want to be closer to 100. I am curious to see what speed other like to cut Al at?
 
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I’m about to assemble a custom track bicycle from scratch. Is this sort of content welcome here on H-M?

If yes, should I document the progress to this thread or should I start a dedicated project thread for this bicycle under the “Things That Move on Their Own” -section?
 
I’m about to assemble a custom track bicycle from scratch. Is this sort of content welcome here on H-M?

If yes, should I document the progress to this thread or should I start a dedicated project thread for this bicycle under the “Things That Move on Their Own” -section?
Yes please do. There are several bike building threads here.
 
Which motor you planning to use?
Aaron
I bought the 1500w servo motor from The Custom Crafter.

I'm thinking my SPFM needs to go from about 100 to 1100. That's slightly greater than 10:1. So 500 to 3000 will not cut it so to speak. 300-3000 would work but that is really at the low end of the motors range. If I need to change a pulley that would defeat the purpose for me.
I suppose I could accept a lower top end for wood and aluminum?

Actually, I just check the ratio on my saw. I am running from 150 spfm in low to 1800 spfm in high. That may be a little fast for Al but it works. For stainless I might want to be closer to 100. I am curious to see what speed other like to cut Al at?

I should really reconsider my math, I was off by a factor of 12. Some reason I got hung up on INCHES per minute, and I should be calculating FEET per minute.

So I am going out back right now to make what I've got on hand work. Turns out I have plenty of elbow room.
 
For that motor you could go as low at 500 rpm comfortably. That gives a high/lo ratio of 7. If you set if up for 150 SPFM on the low end you would have 1050 SPFM for aluminum. That should work?
Where is you thread on this rebuild?
 
Continuing with cleaning many years of grunge and ****20230817_185612.jpg20230817_185634.jpg20230819_114624.jpg off the new mill, but it's starting to heat up outside, so probably going in and taking a nap. It's coming along nicely though. Someone had a table oopsie,it was under the vise.20230816_193549.jpg
 
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