1:48 Engine Room #3 Battleship USS New Jersey for Permanent Display on Board. (1 Viewer)

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Took a couple of shots with a ruler to send to my old friend, Bryant, who builds my wood bases. I wanted to give him a head's up about sizing. It's not the final value, but it's close.

It's going to be about 1 foot deep.

NJ ERP Depth Est..jpg


And about 21"wide (by about 1 foot high). The prop shafts and the bulkhead stiffener in the fire room made the width extend past the drawing's edges.

N ERP Model Width Est.jpg


Today was one of the first where progress was in retrograde. I had a printing anomaly of the MRG… there was a significant growth of resin on one interior wall. I didn't discard this, but went back and reset it in the slicer with more supports in that area and printed it again. While it was printing I took the Dremel Flexi-shaft and a carbide router and sugically removed all of it. You can't see this when the gears are installed, but the lump would impact their installation.

Here's the malformation from two directions. I had already started attacking it in the damage when I took the image.

NJ ERP MRG Upper Oddity.jpg


NJ ERP MRG Upper Oddity Rev View.jpg


After cleaning it all out with the router, then sanding drum and finally a diamond coated burr, it's functional… Functional, not pretty.

NJ ERP Growth Removed.jpg


Much to my dismay, the reprinted part actually came out worse. With the delamination I suspected there might be some resin on the vat film. I emptied the vat, made a mess when my silicone funnel with its filter tipped off the resin bottle and made a royal mess. There was no resin stuck to the film. I refilled the vat and started printing again. The growth looks exactly the same as the previous one and my corrections did nothing. I have no idea what about the design is causing the excess resin. But this one also has delamination on top and that would be visible, rendering this print scrap.

NJ ERP MRG Upper Print 2 Oddity.jpg


Ths delamination...

NJ ERG MRG UPPER Print 2 Other Damage.jpg


I tried the gear sets in the repaired part and they fit without interference, so the correction worked.

NJ ERP MRG Test Build.jpg


I correct output shaft just came off the printer with the second upper frame print and is in the post-cure chamber, explaining the water pipe used to support the bull gear.

NJ ERP MRG Test Build 2.jpg


Lastly, I had another shock. I made beautiful prints of the two cutaway gear box covers. I mean they were perfect! Except they weren't. For some reason, the designer had the reduction gear bores way undersized. I don't know what he was thinking, and I'll have to have words with him.

NJ MRP Gear Cover Bore Problem.jpg


I left the shop and went back to SketchUp to fix this. It took hours! I've said this many, many times. It's often more difficult to repair an SU drawing than to do it in the first place. The fixed covers are now in the printer. I've officially named it THE MACHINE!.

I also noticed that my innerds desgn of the gear case doesn't have an inboard bearing cap for the bull gear shaft. There's a bearing on the lower half, but nothing on the upper. I drew up a bearing cap and will print it separately. Clearly I missed something when looking at the framing diagrams.

NJ ERP Bearing Block.png


I also found out why the LP/Condenser height was off by 3/16". Look at this image of the equipment below the drawing sheet.

Screenshot 2025-01-29 at 7.02.41 PM.png


It will be easier to shim up the condenser foundation than to trim the HP foundation. The printer doesn't lie. If I drew it wrong, it will print wrong. Hopefully, tomorrow will be in a more positive directly.
 
Took a couple of shots with a ruler to send to my old friend, Bryant, who builds my wood bases. I wanted to give him a head's up about sizing. It's not the final value, but it's close.

It's going to be about 1 foot deep.

View attachment 816201

And about 21"wide (by about 1 foot high). The prop shafts and the bulkhead stiffener in the fire room made the width extend past the drawing's edges.

View attachment 816202

Today was one of the first where progress was in retrograde. I had a printing anomaly of the MRG… there was a significant growth of resin on one interior wall. I didn't discard this, but went back and reset it in the slicer with more supports in that area and printed it again. While it was printing I took the Dremel Flexi-shaft and a carbide router and sugically removed all of it. You can't see this when the gears are installed, but the lump would impact their installation.

Here's the malformation from two directions. I had already started attacking it in the damage when I took the image.

View attachment 816198

View attachment 816197

After cleaning it all out with the router, then sanding drum and finally a diamond coated burr, it's functional… Functional, not pretty.

View attachment 816193

Much to my dismay, the reprinted part actually came out worse. With the delamination I suspected there might be some resin on the vat film. I emptied the vat, made a mess when my silicone funnel with its filter tipped off the resin bottle and made a royal mess. There was no resin stuck to the film. I refilled the vat and started printing again. The growth looks exactly the same as the previous one and my corrections did nothing. I have no idea what about the design is causing the excess resin. But this one also has delamination on top and that would be visible, rendering this print scrap.

View attachment 816200

Ths delamination...

View attachment 816199

I tried the gear sets in the repaired part and they fit without interference, so the correction worked.

View attachment 816196

I correct output shaft just came off the printer with the second upper frame print and is in the post-cure chamber, explaining the water pipe used to support the bull gear.

View attachment 816195

Lastly, I had another shock. I made beautiful prints of the two cutaway gear box covers. I mean they were perfect! Except they weren't. For some reason, the designer had the reduction gear bores way undersized. I don't know what he was thinking, and I'll have to have words with him.

View attachment 816194

I left the shop and went back to SketchUp to fix this. It took hours! I've said this many, many times. It's often more difficult to repair an SU drawing than to do it in the first place. The fixed covers are now in the printer. I've officially named it THE MACHINE!.

I also noticed that my innerds desgn of the gear case doesn't have an inboard bearing cap for the bull gear shaft. There's a bearing on the lower half, but nothing on the upper. I drew up a bearing cap and will print it separately. Clearly I missed something when looking at the framing diagrams.

View attachment 816203

I also found out why the LP/Condenser height was off by 3/16". Look at this image of the equipment below the drawing sheet.

View attachment 816204

It will be easier to shim up the condenser foundation than to trim the HP foundation. The printer doesn't lie. If I drew it wrong, it will print wrong. Hopefully, tomorrow will be in a more positive directly.
🥓
Dude, that's amazing work.
FWIW I'm old, so weird growths don't impress me anymore.
 

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