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Homeroasters - Home Roasting Coffee Community » BUILDING A ROASTER » Fluidbed Roaster

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Pyrex Bake A Round Tube Mounting Help
AronoSarius	#1 Posted on 10/31/2019 9:15 PM
Newbie Posts: 2 Joined: October 31, 2019	Hi Everyone, I am new to the forum and am looking for some help on building a fluidbed roaster. My question is regarding the best way to create a mount for the Bake A Round tube. I have seem some using long threaded rods secured with nuts and two flat metal plates to hold it all together. and others using a martini shaker upside down with what looks to be high temperature silicone as a gasket. Essentially I am looking to see if there are any off the shelf parts that would allow for a secure mount and any other feedback on a simple way to execute this. I have looked through all of the threads and have not seen anyone address the assembly directly. EDIT: I am planning on using a Harbor Freight aluminum body heatgun with an extension tube to connect to the Bake Around. I will be attaching a shop vac to the air intake similar to the build on here with the exhaust splitter and two of the same heat guns. I have everything else in the build figured out, I am just looking for help with a simple housing that doesn't require complicated fabrication or tools for pyrex tube housing and that will be secure and account for expansion of the tube/mounting materials. Thanks in Advance! Edited by AronoSarius on 11/01/2019 1:37 PM


pisanoal	#2 Posted on 11/04/2019 10:01 AM
1/4 Pounder Posts: 97 Joined: October 11, 2019	https://forum.hom...ad_id=5505 Literally the first thread I clicked on... haha. Looks like they use a v-flange and silicone around the tube. Link for the v-flange https://www.amazo...&psc=1 3" looks like It has an OD of 3.125" I think the ID of the bake-a-round is something like 3.25. Looks like about that gap in the pics in the thread I linked. Also to be honest, you could do a lot with a drill, a hacksaw a sheet of thin stainless and some all-thread for the sandwich method. I would definitely not place that in the "complicated fabrication" category. Tools and materials could be had for under $100. (Walmart corded drill)


AronoSarius	#3 Posted on 11/04/2019 11:38 AM
Newbie Posts: 2 Joined: October 31, 2019	Thanks a Lot pisanoal, super helpful! Not sure how I missed that post!! Edited by AronoSarius on 11/04/2019 11:45 AM


renatoa	#4 Posted on 11/04/2019 3:21 PM
Administrator Posts: 2589 Joined: September 30, 2016	Hmm... what about the different heating coefficients of glass and steel ? Know this video ? https://youtu.be/...r7H0?t=581 Look at 9:43...


pisanoal	#5 Posted on 11/05/2019 7:51 AM
1/4 Pounder Posts: 97 Joined: October 11, 2019	Quote AronoSarius wrote: Thanks a Lot pisanoal, super helpful! Not sure how I missed that post!! No problem. it popped up in my similar threads links down below.


pisanoal	#6 Posted on 11/05/2019 7:52 AM
1/4 Pounder Posts: 97 Joined: October 11, 2019	Quote renatoa wrote: Hmm... what about the different heating coefficients of glass and steel ? Know this video ? https://youtu.be/...r7H0?t=581 Look at 9:43... Always a concern. Just need to make sure nothing fits too tight, and fill the gaps with a silicone gasket for expansion.


CharcoalRoaster	#7 Posted on 11/06/2019 9:09 AM
1 1/2 Pounder Posts: 634 Joined: April 13, 2012	I used stove gasket rope and high temp RTV copper silicone to secure a metal funnel to the bottom of my bakearound as well as the same silicone to seat the perf plate into the funnel. After at least a hundred roasts if not more like 2-300 no warps, cracks, visible ware on the silicone, funnel, or pyrex.

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