Charles Liptaak Replication - Revision history

Kunda: added Category:Replication Category:CEB Press

2014-02-26T15:56:29Z

added Category:Replication Category:CEB Press

← Older revision		Revision as of 15:56, 26 February 2014
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	#I also just ordered parts to add a pressure relief valve, which should probably be standard.		#I also just ordered parts to add a pressure relief valve, which should probably be standard.
	#I would love to know what the new design is that is replacing the old magnet/sensor set (I couldn't find any information on that link you provided other than the new control board I designed.) I'm part way through a rewrite of the code, but would rather wait and work on a newer version if there are new ideas. I was planning on writing an initialization step that required some manual control to 'show' it where the boundaries are, but that will be for nothing if the actual sensors are flakey		#I would love to know what the new design is that is replacing the old magnet/sensor set (I couldn't find any information on that link you provided other than the new control board I designed.) I'm part way through a rewrite of the code, but would rather wait and work on a newer version if there are new ideas. I was planning on writing an initialization step that required some manual control to 'show' it where the boundaries are, but that will be for nothing if the actual sensors are flakey

			[[Category:Replication]]
			[[Category:CEB Press]]

Marcin: /* Response by MJ */

2012-10-24T21:10:35Z

Response by MJ

← Older revision		Revision as of 21:10, 24 October 2012
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	#Wrt your other email on the power cube, we added an adjustable pressure bypass valve to the pump. This way if a cylinder is bottomed/topped out, the engine can keep running without stressing the pump. The only issue is cosmetic – we didn’t have enough room to do this within the frame and the hose is on the outside of the cube. – photos to follow		#Wrt your other email on the power cube, we added an adjustable pressure bypass valve to the pump. This way if a cylinder is bottomed/topped out, the engine can keep running without stressing the pump. The only issue is cosmetic – we didn’t have enough room to do this within the frame and the hose is on the outside of the cube. – photos to follow

	==Response by MJ==		==Response by [[MJ]]==
	#Agreed, the roller guide mechanism is the weak point. We have not had the drawer slip off the rollers when they were adjusted properly with the roller raisers. After a few thousand bricks - the machine loosened up such that the rollers were no longer holding the drawer tight. The drawer slipped off the rails, so we tightened the roller raisers and the drawer did not slip. However - we see this as an issue to be addressed - and we did that in [[CEB Press Prototype IV]] with the new modular roller mechanism designed by [[Marshall Hilton]]. Since the roller guides were a weak point - we made the rollers modular and more robust for easy installation.		#Agreed, the roller guide mechanism is the weak point. We have not had the drawer slip off the rollers when they were adjusted properly with the roller raisers. After a few thousand bricks - the machine loosened up such that the rollers were no longer holding the drawer tight. The drawer slipped off the rails, so we tightened the roller raisers and the drawer did not slip. However - we see this as an issue to be addressed - and we did that in [[CEB Press Prototype IV]] with the new modular roller mechanism designed by [[Marshall Hilton]]. Since the roller guides were a weak point - we made the rollers modular and more robust for easy installation.
	#We found the magnet/sernor set finicky as well. We have a new design in [[CEB Press Prototype IV]]. See [[CEB_Press#Electronics_-_CEB_Press_IV]].		#We found the magnet/sernor set finicky as well. We have a new design in [[CEB Press Prototype IV]]. See [[CEB_Press#Electronics_-_CEB_Press_IV]].

Marcin: /* Response by MJ */

2012-10-24T21:09:05Z

Response by MJ

← Older revision		Revision as of 21:09, 24 October 2012
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	==Response by MJ==		==Response by MJ==
	#Agreed, the roller guide mechanism is the weak point. We have not had the drawer slip off the rollers when they were adjusted properly with the roller raisers. After a few thousand bricks - the machine loosened up such that the rollers were no longer holding the drawer tight. The drawer slipped off the rails, so we tightened the roller raisers and the drawer did not slip. However - we see this as an issue to be addressed - and we did that in [[CEB Press Prototype IV]] with the new modular roller mechanism designed by [[Marshall Hilton]]. Since the roller guides were a weak point - we made the rollers modular and more robust for easy installation.		#Agreed, the roller guide mechanism is the weak point. We have not had the drawer slip off the rollers when they were adjusted properly with the roller raisers. After a few thousand bricks - the machine loosened up such that the rollers were no longer holding the drawer tight. The drawer slipped off the rails, so we tightened the roller raisers and the drawer did not slip. However - we see this as an issue to be addressed - and we did that in [[CEB Press Prototype IV]] with the new modular roller mechanism designed by [[Marshall Hilton]]. Since the roller guides were a weak point - we made the rollers modular and more robust for easy installation.
	#We found the magnet/sernor set finicky as well. We have a new design in [[CEB Press Prototype IV]].		#We found the magnet/sernor set finicky as well. We have a new design in [[CEB Press Prototype IV]]. See [[CEB_Press#Electronics_-_CEB_Press_IV]].

	==Response by [[Zach Dwiel]]==		==Response by [[Zach Dwiel]]==

Zdwiel: /* Response by Zach Dwiel */

2012-10-24T19:10:50Z

Response by Zach Dwiel

← Older revision		Revision as of 19:10, 24 October 2012
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	#I've got a CEB Press with the newest roller mechanism (I believe), and haven't had any trouble yet, but also haven't pressed too many bricks yet.		#I've got a CEB Press with the newest roller mechanism (I believe), and haven't had any trouble yet, but also haven't pressed too many bricks yet.
	#I also just ordered parts to add a pressure relief valve, which should probably be standard.		#I also just ordered parts to add a pressure relief valve, which should probably be standard.
	#I would love to know what the new design is that is replacing the old magnet/sensor set (I couldn't find any information on that link you provided other than the new control board I designed.) I'm part way through a rewrite of the code, but would rather wait and work on a newer version if there are new ideas.		#I would love to know what the new design is that is replacing the old magnet/sensor set (I couldn't find any information on that link you provided other than the new control board I designed.) I'm part way through a rewrite of the code, but would rather wait and work on a newer version if there are new ideas. I was planning on writing an initialization step that required some manual control to 'show' it where the boundaries are, but that will be for nothing if the actual sensors are flakey

Zdwiel: /* Response by Zach Dwiel */

2012-10-24T19:05:57Z

Response by Zach Dwiel

← Older revision		Revision as of 19:05, 24 October 2012
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	#I've got a CEB Press with the newest roller mechanism (I believe), and haven't had any trouble yet, but also haven't pressed too many bricks yet.		#I've got a CEB Press with the newest roller mechanism (I believe), and haven't had any trouble yet, but also haven't pressed too many bricks yet.
	#I also just ordered parts to add a pressure relief valve, which should probably be standard.		#I also just ordered parts to add a pressure relief valve, which should probably be standard.
	#I would love to know what the new design is that is replacing the old magnet/sensor set. I'm part way through a rewrite of the code, but would rather wait and work on a newer version if there are new ideas.		#I would love to know what the new design is that is replacing the old magnet/sensor set (I couldn't find any information on that link you provided other than the new control board I designed.) I'm part way through a rewrite of the code, but would rather wait and work on a newer version if there are new ideas.

Zdwiel at 19:04, 24 October 2012

2012-10-24T19:04:56Z

← Older revision		Revision as of 19:04, 24 October 2012
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	#Agreed, the roller guide mechanism is the weak point. We have not had the drawer slip off the rollers when they were adjusted properly with the roller raisers. After a few thousand bricks - the machine loosened up such that the rollers were no longer holding the drawer tight. The drawer slipped off the rails, so we tightened the roller raisers and the drawer did not slip. However - we see this as an issue to be addressed - and we did that in [[CEB Press Prototype IV]] with the new modular roller mechanism designed by [[Marshall Hilton]]. Since the roller guides were a weak point - we made the rollers modular and more robust for easy installation.		#Agreed, the roller guide mechanism is the weak point. We have not had the drawer slip off the rollers when they were adjusted properly with the roller raisers. After a few thousand bricks - the machine loosened up such that the rollers were no longer holding the drawer tight. The drawer slipped off the rails, so we tightened the roller raisers and the drawer did not slip. However - we see this as an issue to be addressed - and we did that in [[CEB Press Prototype IV]] with the new modular roller mechanism designed by [[Marshall Hilton]]. Since the roller guides were a weak point - we made the rollers modular and more robust for easy installation.
	#We found the magnet/sernor set finicky as well. We have a new design in [[CEB Press Prototype IV]].		#We found the magnet/sernor set finicky as well. We have a new design in [[CEB Press Prototype IV]].

			==Response by [[Zach Dwiel]]==
			#I've got a CEB Press with the newest roller mechanism (I believe), and haven't had any trouble yet, but also haven't pressed too many bricks yet.
			#I also just ordered parts to add a pressure relief valve, which should probably be standard.
			#I would love to know what the new design is that is replacing the old magnet/sensor set. I'm part way through a rewrite of the code, but would rather wait and work on a newer version if there are new ideas.

Marcin: /* Response by MJ */

2012-10-24T17:00:42Z

Response by MJ

← Older revision		Revision as of 17:00, 24 October 2012
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	==Response by MJ==		==Response by MJ==
	#Agreed, the roller guide mechanism is the weak point. We have not had the drawer slip off the rollers when they were adjusted properly with the roller raisers. After a few thousand bricks - the machine loosened up such that the rollers were no longer holding the drawer tight. The drawer slipped off the rails, so we tightened the roller raisers and the drawer did not slip. However - we see this as an issue to be addressed - and we did that in [[CEB Press Prototype IV]] with the new modular roller mechanism designed by [[Marshall Hilton]]. Since the roller guides were a weak point - we made the rollers modular and more robust for easy installation.		#Agreed, the roller guide mechanism is the weak point. We have not had the drawer slip off the rollers when they were adjusted properly with the roller raisers. After a few thousand bricks - the machine loosened up such that the rollers were no longer holding the drawer tight. The drawer slipped off the rails, so we tightened the roller raisers and the drawer did not slip. However - we see this as an issue to be addressed - and we did that in [[CEB Press Prototype IV]] with the new modular roller mechanism designed by [[Marshall Hilton]]. Since the roller guides were a weak point - we made the rollers modular and more robust for easy installation.
			#We found the magnet/sernor set finicky as well. We have a new design in [[CEB Press Prototype IV]].

Marcin: /* Response by MJ */

2012-10-24T16:59:52Z

Response by MJ

← Older revision		Revision as of 16:59, 24 October 2012
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	==Response by MJ==		==Response by MJ==
	#Agreed, the roller guide mechanism is the weak point. We have not had the drawer slip off the rollers when they were adjusted properly with the roller raisers. After a few thousand bricks - the machine loosened up such that the rollers were no longer holding the drawer tight. The drawer slipped off the rails, so we tightened the roller raisers and the drawer did not slip. However - we see this as an issue to be addressed - and we did that in [[CEB Prototype IV]] with the new modular roller mechanism designed by [[Marshall Hilton]]. Since the roller guides were a weak point - we made the rollers modular and more robust for easy installation.		#Agreed, the roller guide mechanism is the weak point. We have not had the drawer slip off the rollers when they were adjusted properly with the roller raisers. After a few thousand bricks - the machine loosened up such that the rollers were no longer holding the drawer tight. The drawer slipped off the rails, so we tightened the roller raisers and the drawer did not slip. However - we see this as an issue to be addressed - and we did that in [[CEB Press Prototype IV]] with the new modular roller mechanism designed by [[Marshall Hilton]]. Since the roller guides were a weak point - we made the rollers modular and more robust for easy installation.

Marcin at 16:59, 24 October 2012

2012-10-24T16:59:40Z

← Older revision		Revision as of 16:59, 24 October 2012
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	[[Image:charlescebrep7.jpg]][[Image:charlescebrep8.jpg]]		[[Image:charlescebrep7.jpg]][[Image:charlescebrep8.jpg]]
	[[Image:charlescebrep9.jpg]]		[[Image:charlescebrep9.jpg]]

			=User Review=

			We made a bunch of bricks and found some areas to improve:

			#Every once in a while the drawer jumped off the rollers and jammed. This is probably due to the hydraulic cylinder not being perfectly in-line with the drawer and pushing it slightly sideways. To fix this we removed the rollers and added 8 bearings, 4 to hold it up and 4 to prevent it moving it sideways. Now it works much better. This will also simplify the construction of the drawer, which now can be made with flat bottom rails.
			Once I fix the second and third problems below, I’ll send you images/video
			#Could be missing something here, but I’m finding the magnet/sensor combination unreliable. – I had the machine working perfectly, but after just having it sit there for two months, the sensors failed to pick up the magnets. Maybe I need to build the hall effect sensors little differently and perhaps out of a different material, but even moving the magnets manually in front of the sensors produced intermittent results.
			Have you experienced anything similar? Have you considered other types of sensors/ control mechanisms?
			#Fried my Aurdrino board. Totally self-inflicted. Had some issues with the software recognizing the cylinder positions at startup, and to override things I wanted to have manual controls. The manual override worked and the cylinders moved into position ok, but the feedback loop killed the board. Have you figured out how to add manual override switches?
			#Wrt your other email on the power cube, we added an adjustable pressure bypass valve to the pump. This way if a cylinder is bottomed/topped out, the engine can keep running without stressing the pump. The only issue is cosmetic – we didn’t have enough room to do this within the frame and the hose is on the outside of the cube. – photos to follow

			==Response by MJ==
			#Agreed, the roller guide mechanism is the weak point. We have not had the drawer slip off the rollers when they were adjusted properly with the roller raisers. After a few thousand bricks - the machine loosened up such that the rollers were no longer holding the drawer tight. The drawer slipped off the rails, so we tightened the roller raisers and the drawer did not slip. However - we see this as an issue to be addressed - and we did that in [[CEB Prototype IV]] with the new modular roller mechanism designed by [[Marshall Hilton]]. Since the roller guides were a weak point - we made the rollers modular and more robust for easy installation.

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2012-10-23T21:52:43Z

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