Bed that slides/rolls out from under a riser? Crazy or brilliant? - Page 2 - AVS Forum | Home Theater Discussions And Reviews
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post #31 of 46 Old 05-30-2019, 01:45 PM - Thread Starter
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Originally Posted by Tedd View Post
What format of screen are you masking?

After much reading and consideration, I’m gonna do a zoom scope screen with side masks for 16:9. At some point I’ll look into anamorphic lenses, keeping aneue out in the mean time.
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post #32 of 46 Old 05-30-2019, 02:40 PM
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Will you then go to a curved screen, when you add an anamorphic lens?
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post #33 of 46 Old 05-30-2019, 03:10 PM
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If your throw distance is long enough you don't need a curved screen with an anamorphic lens. I do and I don't


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post #34 of 46 Old 05-30-2019, 04:26 PM
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Isn't his room a wee bit shorter? I didn't look into all the numbers, but it might be something to look into, before committing to anything.
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post #35 of 46 Old 05-30-2019, 05:17 PM
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From the creepy man cave thread, his room is 20 1/2 ft long, from memory with the prism stretch lens if your throw ratio is around 1.6-1.7 (distance to width) or more you minimize the pincushion effect.
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post #36 of 46 Old 05-30-2019, 09:46 PM
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Wink

If your riser is deep enough you could make a BOSS trundle bed for added interest. Between that and the stripper pole, you should have some wild movie nights

Aaron
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post #37 of 46 Old 05-31-2019, 09:42 AM
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I'm also intrigued by the motorized trundle bed and motorized stripper pole. :

Seriously though, the bed is a neat idea. I've used a little bit of actuators at work, and it makes me nervous to try to use more than one to move something. They'll never move exactly at the same speed at exactly the same time, and you'll get some racking. If you need to 'push' in three points, weld up a frame that will achieve this.

Fun thread for sure!
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post #38 of 46 Old 05-31-2019, 09:51 AM - Thread Starter
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Quote:
Originally Posted by BIGmouthinDC View Post
From the creepy man cave thread, his room is 20 1/2 ft long, from memory with the prism stretch lens if your throw ratio is around 1.6-1.7 (distance to width) or more you minimize the pincushion effect.


Close- with the screen wall, I have 16’ to work with BUT I may put the PJ in a hush box that extends into an opening to a crawlspace (necessitating a new opening to said crawl space from the outside).

I’ll definitely start a separate thread for that.
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post #39 of 46 Old 05-31-2019, 04:58 PM - Thread Starter
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Originally Posted by NickTheGreat View Post
I'm also intrigued by the motorized trundle bed and motorized stripper pole. :



Seriously though, the bed is a neat idea. I've used a little bit of actuators at work, and it makes me nervous to try to use more than one to move something. They'll never move exactly at the same speed at exactly the same time, and you'll get some racking. If you need to 'push' in three points, weld up a frame that will achieve this.



Fun thread for sure!


Any tips appreciated! I’ve already gathered I cannot have two “in parallel” (for lack of a more precise description) due to variances in speed. Luckily, my estimate of the force needed to overcome static friction is well under 200 pounds for the bed, possibly more if I try to have it slide the front row as well.

I’ll order one and test it a little while I continue work on the project.
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post #40 of 46 Old 07-09-2019, 09:21 AM - Thread Starter
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I wondered, “What’s a good way to test this bad boy?” I answered, “Cut a hole in the garage wall and build a bar.”

This was/is a side project while I wait for inspectors. My actuator is 24” long closed, 44” long open, rated for 225lbs at 12V and pulling a max of 3A at full load (lifting me up).

Needless to say, it handles my bar window (sideways door) with ease.
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post #41 of 46 Old 07-15-2019, 10:20 PM - Thread Starter
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Bed that slides/rolls out from under a riser? Crazy or brilliant?

Below is a repost from my main thread- i didn’t want questions about the actuators to distract from the many other way more awesome and professional WIP’s there, or vice versa. Hope this is a thoughtful rule exemption.

Adult Cave! (but not in a creepy way) 13x16x7.5 ~1800 cubic feet
https://r.tapatalk.com/shareLink?sha...8&share_type=t

Repost as follows:

This thread hasn’t attracted much attention... because I haven’t put THESE bad boys up yet

I’m still entirely at the testing phase, but the results are very promising. While I wait for my electrical rough inspection, I had some spare lumber and future-projects on hold (screen wall, frames for absorber/diffusors, run more conduit).

So I did what any reasonable person on this forum would do: start another project.

Two weekends later, and i had put a sideways door in the wall of my garage, and i had built a bar around it.

Enter: Linear actuator, real-world test, part 1
This goes against my rule of video/pictures of me on the internet, but the awesomeness was too much to withhold.

I suspect the bed under the riser will slide out quite easily with three of these (two if i can find 30” throws), as well as the front row.

Massive bonus: After testing out my chairs, this allows the front tow to slide closer if they don’t want the back row’s feet hanging over them (a rare but predictable occasion).
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Last edited by MinHeadroom; 07-15-2019 at 10:30 PM.
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post #42 of 46 Old 07-16-2019, 09:07 AM
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You're crazy. I like you, but you're crazy! :
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post #43 of 46 Old 07-16-2019, 12:36 PM - Thread Starter
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You're crazy. I like you, but you're crazy! :


This warms my heart
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post #44 of 46 Old 07-16-2019, 12:38 PM
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Build a low platform (4"-6" high) that the front chairs and bed will sit on.. Build two guides, use a rack and pinion to move it in and out and add two limit switches.
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post #45 of 46 Old 07-16-2019, 01:38 PM - Thread Starter
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Build a low platform (4"-6" high) that the front chairs and bed will sit on.. Build two guides, use a rack and pinion to move it in and out and add two limit switches.


A lot of actuators have built in limit switches, which is super convenient. Time for me to read up on “racks and pinions.” Thanks for the tip!
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post #46 of 46 Old 07-16-2019, 03:49 PM
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A lot of actuators have built in limit switches, which is super convenient. Time for me to read up on “racks and pinions.” Thanks for the tip!
Unless you are building a scissor to accompany your actuator, it isn't going to be easy to put three together and have them work seamlessly. I'd go for the KISS method..

Rack and Pinion is how RV Slide-outs work. https://www.lci1.com/slide-outs might have something that you can use.

-Chris
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